Kereskedelmi, irodai és ipari

Below item is powered by Canton-Power Ltd . 
 
Product Name:   7W 3V 3.7V to 5V DC DC Boost Step-up Converter Power Supply Module for Solar mobile phone smartphone Li ion battery charger
  
Packing list:
 
1 PCS 7W DD2424SA_5V 2V-5V TO 5V DC DC Boost Converter Module
  
Description:
Input voltage DC 2 ~ 5V,output DC 5V±5% (No-load voltage is 5-5.4V)
 
Internal 4A Switch Current Limit.
 
DC DC Boost Converter Module working frequency 1.2MHZ.
 
up to 96% Efficiency (usually is 70% -94% )
 
Operating temperature range : -40~ 85 Degrees Celsius
 
Storage temperature range : -65~ 150 Degrees Celsius
 
2.54mm pin pitch,for MCU Development Board Breadboard friendly.
 
Size : 22mm x 15.2mm x 6.2mm
 
Weight : 2g
 
 
   
Applications
Battery powered equipment
Breadboard Power Supply
ARM STM32 UNO MEGA2560 FPGA CPLD Board
Small power motors
Camera, Video camera
Toy car
power bank 
Phone PDA
LED Lighting
Wireless communication equipment
Audio equipment 
 
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
  
Q & A:
     
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
 
 
 
   
 
 
 
 

Below item is powered by Canton-Power Ltd . 
 
Product Name:   DD2412SA_6V 6W 2-24V/3.3V/5V/9V/12V to 6V DC-DC Boost-Buck Step UP-Down Converter Module for Motor LED Toy electrical tools
  
Packing list:
 
1 PCS DD2412SA_6V 2-24V TO 6V DC DC Boost-Buck Converter Module
 
  
Description:
Input voltage DC 2-24V, output DC 6V±4%  (No-load voltage is 6-6.4V)
 
2 in 1 DC DC Boost-Buck Converter Module working frequency 1.2MHZ.efficiency 70% -90% .
 
Operating temperature range : -40~ 85 Degrees Celsius
 
Storage temperature range : -65~ 150 Degrees Celsius
 
2.54mm pin pitch,MCU Development Board Breadboard friendly.
 
Size : 21.4mm x 15.6mm x 5.8mm(Very small)
 
Weight : 2.2g(Very light) 
  
   
 
   
Applications
Battery powered equipment
Breadboard Power Supply
electrical tools
Small power motors
Camera, Video camera
Toy car
power bank 
Phone PDA
LED Lighting
Wireless communication equipment
Audio equipment
 
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
  
Q & A:
     
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
 
 
 
 
   
 
 
 
 

Below item is powered by Canton-Power Ltd . 
 
Product Name:   DD2412SA_15V 2-24V to 15V DC-DC Boost-Buck Step UP & Step Down Converter Module Voltage Regulator Power supply Board
  
Packing list:
 
1 PCS DD2412SA_15V 2-24V TO 15V DC DC Boost-Buck Converter Module
  
Description:
Input voltage DC 2-24V, output DC 15V±4%  (No-load voltage is 15-15.4V)
 
2 in 1 DC DC Boost-Buck Converter Module working frequency 1.2MHZ.efficiency 68% -88% .
 
Operating temperature range : -35~ 85 Degrees Celsius
 
Storage temperature range : -65~ 150 Degrees Celsius
 
2.54mm pin pitch,MCU Development Board Breadboard friendly.
 
Size : 21.4mm x 15.6mm x 5.8mm(Very small)
 
Weight : 2.2g(Very light) 
  
   
Applications
Battery powered equipment
Breadboard Power Supply
electrical tools
Small power motors
Camera, Video camera
Toy car
LED Lighting
Wireless communication equipment
wifi router
 
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
  
Q & A:
     
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
 
 
 
 
   
 
 
 
 

 
Typical applications:
Automotive electronics
Motor
LED
Smart Home
Emergency lighting
 
Product Name:1 Channel DC 12V Relay Module for Touch Sensor Delay Switch 
Packing list:
 
1 pcs   1 Channel DC 12V Relay Module

 
  
Description:
 
 
High level trigger
Size : 40MM X 17MM X 18MM
Weight  : 15g
Maximum load : 120W
 
 
VCC : 12V Power supply positive
GND : Power supply negative
IN :  Trigger input( High level trigger)
 
   
 
 
 
Connected with the Touch Module 0-130s Delay Timer:
 
 
 
  
 
 

Below item is powered by Canton-Power Ltd . 
 
Product Name:   DD2412SA_5V 2-24V to 5V DC-DC Boost-Buck Step-up & Step-down Converter Power Supply Module for Cell phone charger
  
Packing list:
 
1 PCS DD2412SA_5V 2-24V TO 5V DC DC Boost-Buck Converter Module
  
Description:
Input voltage DC 2-24V, output DC 5V±5%  (No-load voltage is 5-5.4V)
 
2 in 1 DC DC Boost-Buck Converter Module working frequency 1.2MHZ.efficiency 70% -90% .
 
Operating temperature range : -40~ 85 Degrees Celsius
 
Storage temperature range : -65~ 150 Degrees Celsius
 
2.54mm pin pitch,MCU Development Board Breadboard friendly.
 
Size : 21.4mm x 15.6mm x 5.8mm(Very small)
 
Weight : 2.2g(Very light) 
  
 
 
   
Applications
Battery powered equipment
Breadboard Power Supply
ARM STM32 AVR PIC FPGA CPLD Board
Small power motors
Camera, Video camera
Toy car
power bank 
Phone PDA
LED Lighting
Wireless communication equipment
Audio equipment
 
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
  
Q & A:
     
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
 
 
 
   
 
 
 
 

s) DC-DC 4.5-7V to 3.3V USB Interface Multifunction Voltage converter Module Step Down Buck AMS1117-3.3V LDO Board
 
 
 
Packing list:
2 PCS Multifunction (3 functions) USB DC 4.5-7V to 3.3V LDO Module
 
 
 
Description:
 
USB male A interface Multifunction DC-DC 5V to 3.3V Voltage converter module
 
Input DC 4.5-7V(USB input OR 2 Pin input)
 
output: 3.3 V,800 mA (load current can't more than 800 mA)
 
3 functions : USB to 3.3V;USB to 5V(5V to 5V);5V to 3.3V
 
PCB Size: 25x15mm
 
 
Applications:
Arduiuo UNO MEGA2560 DUE 
AVR Atmel PIC STM32 C8051 MSP430
Zigbee CC2530
Wireless module : Nrf24l01 Nrf24lE1 CC1101 CC2500 SI4432 SI4463
FPGA/CPLD:Altera EPM240/EPM570/EP4CE6; Xilinx XC2C64A
Wireless communication equipment
 
 

Below item is powered by Canton-Power Ltd . 
 
Product Name:   2 in 1 Auto Boost-Buck 0.9-6V/1.5V/3V/3.3V/4.2V/5V/6V to 3.7V DC DC Step-UP & Step-Down Converter Voltage regulator module 
  
Packing list:
 
1 PCS DD0603SB_3V7 0.9-6V TO 3.7V( -5% ) DC DC Boost-Buck Converter Module
 
  
Description:
Input voltage DC 0.9 ~ 6V, output DC 3.7V( -5% )
  
The maximum input voltage can not exceed 6.5V
  
Auto Buck-Boost Converter Module working frequency 1MHZ.efficiency 61% -85% .
  
Operating temperature range : -25~ 85 Degrees Celsius
  
Storage temperature range : -45~ 125 Degrees Celsius
    
Size : 22mm x 15mm x 5.7mm(Very small)
  
Weight : 2.3g(Very light)
    
  
     
Applications
 
Battery powered equipment
FPGA CPLD MCU Breadboard Power Supply
electrical tools
Small power motors
18650 Solar Charger li lion battery
Camera, Video camera
Toy car
power bank 
LED Lighting
Wireless communication equipment
Audio equipment
  
 
Attention :
   
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
    
Q & A:
       
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
 
 
 
   
 
 
 
 

Product Name:  2pcs mini DC-DC Converter 1V 1.2V 1.5V 1.8V 2.5V 3V to DC 3.3V Step-UP Boost Power Supply Module For Breadboard Ardiuno UNO DUE 
 
 
 
Packing list:
 
2 PCS 0.9V-3.3V TO 3.3V Step-UP  Boost Voltage Converter Module
 
 
 
Description: 
Input voltage 0.8 ~ 3.3V,output 3.3V
Maximum output current: 500 MA,
Start Voltage 0.8V, Output Current 10MA
INPUT 1-1.5V,     OUTPUT 3.3V 50-110MA;
INPUT 1.5-2V,      OUTPUT 3.3V 110-160MA;
INPUT 2-3V,         OUTPUT 3.3V 160-400MA;
INPUT above 3V,  OUTPUT 3.3V 400-500MA;
DC-DC Boost module working frequency 150KHZ. efficiency <85% (Recommended high efficiency version).
2.54mm pin pitch, Arduiuo Breadboard friendly.
Excluding Pin Size 11mm x 10.5mm x 7.5mm(Very small)
Weight : about 1.2g( Very light)
 Applications:
Battery powered equipment
Wirels Module,NRF24L01 CC1101 CC2500 etc.
Development Board,FPGA/CPLD  STM32 
Ardiuno_uno mega2560  Breadboard Raspberry Pi
VCR
PDA
LED Lighting
Wireless communication equipment
MP3/MP4 player
Audio equipment
Attention :
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself

) mini dc dc converter 0.9-5V to 5V DC-DC step up voltage regulator input 1.5V 1.8V 2.5V 3V 3.3V 4.2V output DC 5V
 
 
 
Packing list:
 
2 PCS 0.9V-5V TO 5V Step-UP  Voltage Converter Module
 
 
Description: 
Input voltage 0.9 ~ 5V, output 5V
Maximum output current: 500 MA,
Start Voltage 0.9V, Output Current 10MA
INPUT 1-1.5V,      OUTPUT 5V 50-110MA;
INPUT 1.5-2V,      OUTPUT 5V 110-160MA;
INPUT 2-3V,         OUTPUT 5V 160-400MA;
INPUT above 3V,  OUTPUT 5V 400-500MA;
DC-DC Boost module working frequency 180KHZ. efficiency <85% (Recommended high efficiency version).
Operating ambient temperature : -25~ 85 Degrees Celsius
2.54mm pin pitch,Arduiuo UNO MEGA2560 Breadboard friendly.
Excluding Pin Size 11mm x 10.5mm x 7.5mm(Very small)
Weight : about 1.2g( Very light)
 Applications:
Battery powered equipment
Wirels Module,NRF24L01 CC1101 CC2500 etc.
Development Board,FPGA/CPLD UNO MEGA2560 DUE 8051 AVR STC etc
Arduiu o UNO MEGA2560  Breadboard
VCR
PDA
LED Lighting
Wireless communication equipment
MP3/MP4 player
Audio equipment
Attention :
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself

 
Nama produk:  2 pcs 1.5 V 2.5 V 3 V untuk 3.3 V DC DC Step-UP Modul Regulator Tegangan
 
 
 
Daftar kemasan:
 
2 pcs 1.5 V 2.5 V 3 V untuk 3.3 V DC DC Step-UP Modul Regulator Tegangan
 

 
Deskripsi:
Tegangan Masukan 0.8 ~ 3.3 V, output 3.3 V
Output maksimum saat ini: 490 MA
Mulai Tegangan 0.8 V, Output Saat Ini 8MA
INPUT 1-1.5 V, OUTPUT 3.3 V 50-110MA;
INPUT 1.5-2 V, OUTPUT 3.3 V 110-160MA;
MASUKAN 2-3 V, OUTPUT 3.3 V 160-400MA;
MASUKAN di atas 3 V, OUTPUT 3.3 V 400-490MA;
DC-DC Meningkatkan modul bekerja frekuensi 150 KHZ.Efisiensi <85% (Direkomendasikan efisiensi tinggi versi).
2.54mm pin lapangan.
Tidak termasuk Ukuran Pin 11mm x 10.5mm x 7.5mm (Sangat kecil).
Berat: sekitar 1g ( Sangat ringan)  
Aplikasi:
Baterai peralatan
Wirels Modul NRF24L01 CC1101 CC2500 SI4432 SI4463.
3.3 V MCU Dewan Pengembangan, FPGA/CPLD LENGAN AVR PIC
Kamera, Video kamera
3.3 VDaya rendah motor
PDA
Lampu LED
Komunikasi nirkabel peralatan
MP3/MP4 pemain
Peralatan Audio
Perhatian:
Ini adalah DC-DC tegangan converter modul harus dicatat dengan menggunakan:
1 tegangan Input tidak dapat lebih besar dari maksimum berbagai masukan
2 daya keluaran tidak dapat lebih besar dari beban maksimum untuk waktu yang lama
3 daya Input harus lebih besar dari daya output, karena konsumsi daya modul itu sendiri
Q & A:
Q: Mengapa tegangan output kurang dari Tegangan nominal
A: Input power supply power terlalu rendah. uji tegangan input dengan digital t ini tegangan input yang sangat rendah

Below item is powered by Canton-Power Ltd . 
 
Product Name:   7W 3V 3.7V to 6V DC DC Boost Step-up Converter Power Supply Module for Solar mobile phone smartphone Li ion battery charger
  
Packing list:
 
1 PCS 8W DD2424SA_6V 2V-6V TO 5V DC DC Step-up Converter Module
 
  
Description:
Input voltage DC 2 ~ 6V,output DC 6V±5% (No-load voltage is 6-6.4V)
 
Internal 4A Switch Current Limit.
 
DC DC Boost Converter Module working frequency 1.2MHZ.
 
up to 96% Efficiency (usually is 70% -93% )
 
Operating temperature range : -40~ 85 Degrees Celsius
 
Storage temperature range : -65~ 150 Degrees Celsius
 
2.54mm pin pitch,for MCU Development Board Breadboard friendly.
 
Size : 22mm x 15.2mm x 6.2mm
 
Weight : 2g
 
 
Applications
Battery powered equipment
Breadboard Power Supply
Small power motors
Camera, Video camera
Toy car boat
Model aircraft
power bank
LED Lighting
Wireless communication equipment
Audio equipment 
 
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
  
Q & A:
     
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
 
 
 
   
 
 
 
 

 
Aplikasi khas:
Arduiuo UNO MEGA2560 Pro mini KARENA
MCU LENGAN FPGA/CPLD Development Board
Raspberry pi
5 V/12 V Relay Modul
 
Nama produk:DC 5 V 12 V Sentuh Modul 0-130 s Delay Timer Tombol Papan untuk Arduiuo UNO Relay raspberry pi
Daftar kemasan:
 
1 pcs DC 5 V 12 V Sentuh Modul 0-130 s Delay Timer Tombol Papan
Deskripsi:
 
Klik "touch key" dengan jari Anda, kemudian "Improvement" output tinggi setelah penundaan 0-130 detik untuk mengembalikan rendah
Waktu tunda 0-130 detik disesuaikan
2.54mm pin
PCB Ukuran: 32 MM X 20 MM X 13 MM
VCC: 5 V-12 V Power supply positif
GND: Power supply negatif
KELUAR: Pemicu Output (4 V-11 V, VCC-1V)
   
 
Terhubung dengan 12 V relay modul:
  
 

Product Name:mini 5V Flip-Flop Latch Relay Module Bistable Self-locking Switch Low pulse trigger Board for Arduiuo Smart home LED  Motor
Packing list:
 
1 pcs   1 Channel DC 5V  Self-locking  Relay Module
 
  
Description:
 
If you need 6-24V version, click here
 
Working voltage: DC 5V
Working current: 70MA
Standby current: 1UA
Load current: AC 250V / 10A, DC 30V / 10A
Trigger mode: Low pulse trigger
Size: 35mm * 16mm  * 18.5mm (L * W * H),  Very small size    
Weight: 13.5 g
 
This is a bistable (self-locking) relay module,Trigger once, the relay pull (and holds);Trigger again, the relay releases (and holds)
 
Module interface:
1. VCC: positive power supply (VCC)
2. GND: negative power supply (GND)
3. T  : Low pulse trigger
  
Relay outputs:
1. NO: normally open relay interface
2. COM: Common Interface Relays
3. NC: normally closed relay interface
 
  
USE : By default, the relay is release, press the trigger button, the relay pull, press again, the relay release, the third press, the relay pull, and so on
 
Typical applications:
Automotive electronics
Motor
LED
Smart Home
Emergency lighting
MCU development board
Toy car

 
 
 

 

Nama produk:    1A DC 5 V 6 V 7 V 9 V 12 V 24 V untuk 3.7 V DC DC Converter Langkah-down Buck Voltage Regulator Modul untuk 18650 Rechargeable li-ion Batteies  
daftar Packing:
 
1 PCSDD4012SB_3V7 5 V-40 V ke 3.7 V DC DC Langkah Down Converter Module
keterangan:
tegangan Input 5 ~ 40 V, output 3.7 V
 
maksimum output 1A saat ini
 
DC-DC Langkah-down Converter modul frekuensi kerja 550 KHz. efisiensi adalah 76-90% .
 
diam lancar: sekitar 1.5MA
 
Overtemperature shutdown, perlindungan di bawah tegangan input, BS-perlindungan tegangan, dan perlindungan sirkuit pendek.
 
2.54mm pin pitch, Arduiuo UNO MEGA2560 MCU Papan Pengembangan Papan Tempat Memotong Roti ramah
 
ukuran 18.3mm x 10.2mm x 6.7mm(kecil)
berat: sekitar 1.1g(sangat ringan)
perhatian:
ini adalah tegangan DC-DC converter modul, harus dicatat ketika menggunakan:
1 tegangan Input tidak bisa lebih besar dari berbagai masukan maksimum
2 Output daya tidak dapat lebih besar dari beban maksimum untuk waktu yang lama
3 Input daya harus lebih besar dari output daya, karena konsumsi daya dari modul itu sendiri
aplikasi:
12 V 5 V UNTUK 3.7 V sistem bertenaga baterai lithium
3.7 V Motor & #8203; Mainan
WIFI esp8266 HC-12 Modul Bluetooth
CCTVkamera
mainan listrik
Modul nirkabel: Nrf24l01 CC2500 CC1101 CC2530 Zigbee
Smart home/rumah otomatisasi
Distributed Power Sistem
baterai Charger
Pre-Regulator untuk Linear Regulator
FM radio
peralatan bertenaga baterai
Audio amplifier
18650 Rechargeable li-ion Batteies

Product Name : 5pcs 3.7-5V 3528 White LED & 1pcs Touch LED Driver Controller DC-DC Constant Current Converter for li-on USB Solar battery
 
Product List: 5pcs 3.7-5V 3528 White LED  or 1pcs Touch LED Driver Controller
 
An LED touch controller can control 1-5 LED light bars
 
  
 
Description: 
  
3.5-5V White LED light bar:
 
Color : White
Working Voltage: DC 3.5-5V
Working Current: <225mA(220Ma at 5V;100mA at 3.7V)
Wavelength(nm): 6500
Brightness (mcd): 1500
Angle: 120
 
Size : 36x8.7x1.7mm
Weight : 0.7g
  
  
 
LED touch controller : 
 
     
Working voltage : DC 3.5-13V(Perfect for 3.7V 5V 6V 9V 12V LED Driver)
   
Output Current: 30-2000MA
   
Maximum output power: 26W
   
Continuously adjustable brightness  
   
Turn off consumption is only 10uA
   
Size 31mm x 15mm x 3mm
 
Weight : about 1.3g
   
 
Easy to use : 
  
Touch the ''touch area'', touch once  ''Turn on'',Touch again  ''Turn off''
 
When ''Turn on'', Continuous touch reduce the brightness,Once again Continuous touch Increased brightness,And so on  
 
 
 
 
 
 
 
 
 
 

Product Name : 5pcs 3.7-5V 3528 White LED & 1pcs Touch LED Driver Controller DC-DC Constant Current Converter for li-on USB Solar battery
 
Product List: 5pcs 3.7-5V 3528 White LED  or 1pcs Touch LED Driver Controller
 
An LED touch controller can control 1-5 LED light bars
 
  
 
Description: 
  
3.5-5V White LED light bar:
 
Color : White
Working Voltage: DC 3.5-5V
Working Current: <225mA(220Ma at 5V;100mA at 3.7V)
Wavelength(nm): 6500
Brightness (mcd): 1500
Angle: 120
 
Size : 36x8.7x1.7mm
Weight : 0.7g
  
  
 
LED touch controller : 
 
     
Working voltage : DC 3.5-13V(Perfect for 3.7V 5V 6V 9V 12V LED Driver)
   
Output Current: 30-2000MA
   
Maximum output power: 26W
   
Continuously adjustable brightness  
   
Turn off consumption is only 10uA
   
Size 31mm x 15mm x 3mm
 
Weight : about 1.3g
   
 
Easy to use : 
  
Touch the ''touch area'', touch once  ''Turn on'',Touch again  ''Turn off''
 
When ''Turn on'', Continuous touch reduce the brightness,Once again Continuous touch Increased brightness,And so on  
 
 
 
 
 
 
 
 
 
 

Nama produk:     1A DC 7.5-40 V 12 V untuk 6 V Regulator DC-DC Langkah-Down Buck Converter Modul Papan mengganti LM7806 L7806-220 IC
    
Daftar kemasan(Tidak termasuk L7806):
 
1 PCSDD4012SA_6V 7.5 V-40 V untuk 6 V DC DC Buck Converter Modul
    
Deskripsi:
Tegangan Input 7.5 ~ 40 V, output 6 V
 
Arus keluaran maksimum 1A
 
DC-DC Step-Down modul Konverter frekuensi kerja 550 KHz. Efisiensi 75-90% .
 
Diam saat ini: Tentang 1.5MA
 
Overtemperature shutdown, masukan di bawah tegangan perlindungan, BS-Perlindungan tegangan dan perlindungan sirkuit pendek.
 
2.54mm pin lapangan Arduiuo UNO MEGA2560 Papan Tempat Memotong Roti MCU Dewan Pengembangan ramah
 
Tidak termasuk Pin Ukuran 18.3mm x 10.2mm x 6.7mm(Kecil)
 
Berat: Sekitar 1.3g(Sangat terang)
Perhatian:
Ini adalah DC-DC tegangan converter modul harus dicatat dengan menggunakan:
1 tegangan Input tidak dapat lebih besar dari maksimum berbagai masukan
2 daya keluaran tidak dapat lebih besar dari beban maksimum untuk waktu yang lama
3 daya Input harus lebih besar dari daya output, karena konsumsi daya modul itu sendiri
 
Aplikasi:
 
 
12 V 9 V UNTUK 6 V baterai lithium bertenaga sistem
6 V Motor
WIFI esp8266 Modul
CCTVKamera
Mobil mainan
Smart home/home automation
Distributed Power Sistem
Baterai Charger
-Regulator untuk Linear Regulator
Mengganti LM7805 L7806
 
 
 

Product Name:DC 12V Car ACC Trigger Delay Power-off Switch Relay Module for Car Door Sensor Driving recorder Stereo Ambient Light Delay off
 
 
Product Included:
1pcs Car Delay Power-off Switch Relay Board
Parameters:
SKU: IO32G01;
Working voltage: DC 12V (Range DC 10-15V)
Working current: Quiescent current 4MA, relay pull-in current 36MA
Trigger control port: ACC port, high level trigger (DC 5-24V).
Working temperature: -40℃ to 80℃;
Dimensions: 45x29x15mm (board only), 45x29x15mm (with case)
Weight: 16g (board only), 26g (with case)
Relay maximum load: 20A/14VDC; 20A/125VAC
Applicable objects: driving recorders, navigation display screens, car audio, car headlights, ambient lights, interior decorative lights, etc.
Working Principle:
This switch is a power-off delay shutdown function. The power supply of the 12V power supply port is a standing power supply, which can generally be connected to a battery or other adapter power supply. The trigger port is used to connect the detected signal to realize related actions.
First, we connect to the standing power supply 12V, and then if the trigger port (ACC) has power supply, the switch will be turned on. When the power supply of the trigger port is disconnected, the module will automatically turn off the relay after a delay for a period of time; If there is voltage, the relay will open and this cycle can be done.
 
Note: The ground wire of the trigger signal of the trigger port should be connected with the negative pole of the power supply port (common ground). If the signal and power supply port are the same device or share the same power supply, they are already connected by default, and there is no need to find the signal ground wire and connect it to the negative pole of the power supply port.​
Delay time selection:
The delay time is determined by the position of the red four digit dial switch. There will be different delay parameters corresponding to different positions, as shown in the table below
Pin description:
VCC : Working power supply
GND : Working power supply -
ACC : Input trigger port, effective level DC 5-24V
COM : relay output common terminal
NO : Relay output normally open
Application:
1. Household switch control--exhaust fans, cooling equipment and other household products;
2. Automotive electronic control--navigation, media sound effects, door and window delay lift and other automotive circuit power-off delay control;
3. Industrial equipment control - access control equipment control - warehouse, aisle lighting;
4. Car lights, headlights delay off, etc.
 

Product Name:DC 12V Car ACC Trigger Delay Power-off Switch Relay Module for Car Door Sensor Driving recorder Stereo Ambient Light Delay off
 
 
Product Included:
1pcs Car Delay Power-off Switch Relay Board
Parameters:
SKU: IO32G01;
Working voltage: DC 12V (Range DC 10-15V)
Working current: Quiescent current 4MA, relay pull-in current 36MA
Trigger control port: ACC port, high level trigger (DC 5-24V).
Working temperature: -40℃ to 80℃;
Dimensions: 45x29x15mm (board only), 45x29x15mm (with case)
Weight: 16g (board only), 26g (with case)
Relay maximum load: 20A/14VDC; 20A/125VAC
Applicable objects: driving recorders, navigation display screens, car audio, car headlights, ambient lights, interior decorative lights, etc.
Working Principle:
This switch is a power-off delay shutdown function. The power supply of the 12V power supply port is a standing power supply, which can generally be connected to a battery or other adapter power supply. The trigger port is used to connect the detected signal to realize related actions.
First, we connect to the standing power supply 12V, and then if the trigger port (ACC) has power supply, the switch will be turned on. When the power supply of the trigger port is disconnected, the module will automatically turn off the relay after a delay for a period of time; If there is voltage, the relay will open and this cycle can be done.
 
Note: The ground wire of the trigger signal of the trigger port should be connected with the negative pole of the power supply port (common ground). If the signal and power supply port are the same device or share the same power supply, they are already connected by default, and there is no need to find the signal ground wire and connect it to the negative pole of the power supply port.​
Delay time selection:
The delay time is determined by the position of the red four digit dial switch. There will be different delay parameters corresponding to different positions, as shown in the table below
Pin description:
VCC : Working power supply
GND : Working power supply -
ACC : Input trigger port, effective level DC 5-24V
COM : relay output common terminal
NO : Relay output normally open
Application:
1. Household switch control--exhaust fans, cooling equipment and other household products;
2. Automotive electronic control--navigation, media sound effects, door and window delay lift and other automotive circuit power-off delay control;
3. Industrial equipment control - access control equipment control - warehouse, aisle lighting;
4. Car lights, headlights delay off, etc.
 

iap scan interval 100-200MS
 
}
 
//******************************************************// 

Product Name: DD08CRMB 1A Ultra-small Li-ion Rechargeable Battery Charger Module ME4056 instead TP4056 for 14500 18650 breadboard power bank
 
 
 
Packing list:
 
1 PCS  DD08CRMB Mini  Li Lithium Battery Charger Module 
 
 
  
 
Description: 
   
Mini Lithium Battery Charger Module - Linear charging.
 
Input voltage : DC 4.5V-8V(Recommend DC 5V)
Maximum charging current : 1000MA 
Full charge voltage : 4.2V -2% .
Led indicator : "OK" LED is fully charged OR battery failure status indicator;
                       "CR" LED is charge status indicator
Operating ambient temperature :  -40° to 85°
Storage temperature :  -65° to 125°
Size : 12.3mm*10mm*4mm( very small!!!)
Weight : 0.5g( Very light!!!)
 
 
Can be used DC 5-6V power supply charger(Such as Solar panels)Charging module comes with charge-management functions, will not overcharge or over discharge
   
Comes with rechargeable function,Will enter standby mode when fully charged.When the battery capacity is below 80% , the charging start.
  
Applications:
 
Battery powered equipment
Lithium Battery 18650 14500
Mobile phone
Solar charging
MP3/MP4 player
Audio equipment
Portable Devices
Bluetooth Applications
 

 

Nama produk:2 Pcs 0-8 GHz SMA RP-SMA Antena Konektor Adapter untuk 315 M 433 M 868 M 915 M 2.4G 5.8G Radio UHF RF Modul Nirkabel CC1101 CC2500
daftar Packing:
2 pcs 0-8 GHz SMA Konektor Antena
SMA konektorseri produk adalah banyak digunakan kecil konektor coaxial dengan koneksi berulir. koneksi berulir yang SMA seri inch, kekuatan tinggi, resistensi shock yang baik. luar konduktor ujung dalam kontak langsung, sehingga insertion loss untuk minimum.
 
impedansi: 50 Ohm
 
aplikasi:
 
antena
Broadcast
radio
uji peralatan elektronik
Serial antarmuka digital dan Analog
non-profesional koneksi antena radio
IEEE 802.11 b/g/n WLAN Sistem
Sistem Komunikasi nirkabel
Wi-Fi/WiMAX/Sistem MIMO
Internet Hal
Rumah pintar
Wifi
Bluetooth
Zigbee
Zwave
0-8 Sistem GHz Nirkabel

 
Product Name :   800mA DC 15V 18V 24V to 12V dc dc voltage converter module Step Down Buck for LED PLC Wifi Bluetooth RS485 315 433M RF Relay        
Packing list:
 
1 PCS DD4012SB_12V 14V-40V to 12V DC DC Buck Converter Module
 
Description:
Input voltage 14~40V,output 12V
 
Maximum output current 0.8A
 
DC-DC Step-Down Converter module working frequency 550KHz. efficiency is 75-90% .
 
Quiescent current: about 1.5MA
 
Overtemperature shutdown, input under-voltage protection, BS-voltage protection, and short circuit protection.
 
2.54mm pin pitch, Arduiuo UNO MEGA2560 Breadboard MCU Development Board friendly
 
Size 18.3mm x 10.2mm x 6.7mm( small)
Weight : about 1.1g(Very light)
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
 
 
Applications:
 
12V Motor ​Toy
LED
WIFI Router Switch
Network equipment
Multimeter instrumentation
CCTV camera
Electric toys
Smart home / home automation
Distributed Power Systems
Pre-Regulator for Linear Regulators
Battery powered equipment
Audio amplifier
 
 
 

 
 
Product Name: mini Automatic control 5V RS485 TO TTL 232 Module UART Serial Port to 485 BUS Converter for Arduiuo UNO MEGA MCU AVR
 
 
 
Package inlcuded:
 1 x DC 5V RS485 to TTL 232 converter
 
 
Description: 
 
Read and write automatic control RS485 TO RS232(5V TTL Logic level) converter
 
Operating Voltage : DC 5V
Logic level  : 5V TTL
RS485 BUS IC : SP485
Read and write automatic control IC :SM74HC04
7x 2.54MM pin,mini size.
Size(Does not include pin) : 17.9x11.7x2.8mm(very small)
Weight :1.2g(Very light)
 
  
Application
 
RS485 Temperature and humidity sensor
PTZ camera
LED controller
MODBUS RTU
RS485 Relay
automated manufacturing line
 
Wiring Diagram:
 
 

Nama produk:     5 V-40 V untuk 3.7 V 1A DC DC Step-Down Buck Converter Modul ganti 18650 18500 li-ion isi ulang Batteies Power supply  
    
Daftar kemasan:
 
1 PCSDD4012SA_3V7 5 V-40 V untuk 3.7 V 1A DC DC Buck Converter Modul
    
Deskripsi:
Tegangan Input 5 ~ 40 V, output 3.7 V
 
Arus keluaran maksimum 1A
 
DC-DC Step-Down modul Konverter frekuensi kerja 550 KHz. Efisiensi 76-90% .
 
Diam saat ini: Tentang 1.5MA
 
Overtemperature shutdown, masukan di bawah tegangan perlindungan, BS-Perlindungan tegangan dan perlindungan sirkuit pendek.
 
2.54mm pin lapangan Arduiuo UNO MEGA2560 Papan Tempat Memotong Roti MCU Dewan Pengembangan ramah
 
Tidak termasuk Pin Ukuran 18.3mm x 10.2mm x 6.7mm(Kecil)
 
Berat: Sekitar 1.3g(Sangat terang)
Perhatian:
Ini adalah DC-DC tegangan converter modul harus dicatat dengan menggunakan:
1 tegangan Input tidak dapat lebih besar dari maksimum berbagai masukan
2 daya keluaran tidak dapat lebih besar dari beban maksimum untuk waktu yang lama
3 daya Input harus lebih besar dari daya output, karena konsumsi daya modul itu sendiri
 
Aplikasi:
 
 
12 V 5 V UNTUK 3.7 V lithium battery-powered sistem
WIFI esp8266 Modul
CCTVKamera
Smart home/home automation
Distributed Power Sistem
Baterai Charger
-Regulator untuk Linear Regulator
Ganti 18650 18500 Isi Ulang li-ion Batteies Power supply
 
 
 

Product Name: DD08CRMA 1A mini Li Lithium Battery Charger Module Board for Arduino Breadboard 18650 solar panel
 
 
 
Packing list:
 
1 PCS  DD08CRMA Mini  Li Lithium Battery Charger Module 
 
 
  
 
Description: 
   
Mini Lithium Battery Charger Module - Linear charging.
 
Input voltage : DC 4.5V-8V(Recommend DC 5V)
Maximum charging current : 1000MA 
Full charge voltage : 4.2V -2% .
Led indicator : "OK" LED is fully charged OR battery failure status indicator;
                       "CR" LED is charge status indicator
Operating ambient temperature :  -40° to 85°
Storage temperature :  -65° to 125°
Except pin size : 12.3mm*10mm*4mm( very small!!!)
Weight : 0.7g( Very light!!!)
 
2.54MM pin can be inserted directly into the breadboard
 
Can be used DC 5-6V power supply charger(Such as Solar panels)Charging module comes with charge-management functions, will not overcharge or over discharge
   
Comes with rechargeable function,Will enter standby mode when fully charged.When the battery capacity is below 80% , the charging start.
  
Applications:
 
Battery powered equipment
Lithium Battery 18650 
Mobile phone
Solar charging
MP3/MP4 player
Audio equipment
Portable Devices
Bluetooth Applications
 
 
 
 
 
 

​Note: Adjustable resistors (potentiometers) are components that are easily damaged. Use a suitable screwdriver to slowly rotate. Click here to buy a screwdriver.
 
Applications:
 
1.5V/1.8V/2.5V/3.3V/5V MCU ARM CPU FPGA/CPLD 
12V 5V TO 3.7V lithium battery-powered systems
12V 9V 6V 5V 3.3V Motor
WIFI esp8266 Module
CCTV camera
Wireless Module:Nrf24l01 CC1101 CC2500 CC2530 Zigbee
Smart home / home automation
315M 433M Wireless remote controller
Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
DSL Modems
 
 
 
Product Name :     DD40AJSB 5W mini DC DC Step Down Converter Module 5-40V to 12V 5V 3.3V repl 7812 7805 AMS1117 LM2596  
  
  Packing list:
 
1 PCS DD40AJSB mini 5W DC DC Converter Step Down 4.75V-40V to 0.8-30V  Adjustable output Module         
    
 
Description: 
 
Input voltage 4.75~40V,Adjustable output 0.9~30V
 
Long time maximum output current 0.8A(12V to 5V)
 
Short time maximum output current 1A(12V to 5V)
 
Quiescent current: about 1.5MA
 
DC-DC Step-Down Converter module working frequency 550KHz. efficiency is 75-90% .
 
Overtemperature shutdown, input under-voltage protection, BS-voltage protection, and short circuit protection.
 
Excluding Pin Size 15mm x 10.3mm x 6.8mm(Very small)
 
Weight : about 1.5g(Very light)
 
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
 
 

Below item is powered by Canton-Power Ltd . 
 
Product Name:   DD0606SA_5V 1-5V to 5V Step up DC DC Boost Converter Module Power Supply Board for Solar Cell mobile phone charger
  
Packing list:
 
1 PCS 1V-5V TO 5V DC DC Boost Converter Module
 
  
Description:
Input voltage DC 1 ~ 5V, output DC 5V( -5% )
 
DC DC Boost Converter Module working frequency 1MHZ.efficiency 66% -88% .
 
Operating temperature range : -25~ 85 Degrees Celsius
 
Storage temperature range : -45~ 125 Degrees Celsius
 
2.54mm pin pitch,MCU Development Board Breadboard friendly.
 
Excluding Pin Size : 21.3mm x 12.5mm x 5.7mm(Very small)
 
Weight : 1.85g(Very light) 
 
 
   
Applications
Battery powered equipment
Breadboard Power Supply
ARM STM32 FPGA CPLD Board
Wireless Module,  esp8266 nrf24l01 rtl8710 GSM etc
Small power motors
Camera, Video camera
Toy car
Phone PDA
LED Lighting
Wireless communication equipment
Audio equipment 
 
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
  
Q & A:
     
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
 
 
 
 
   
 
 
 

Below item is powered by Canton-electronics Ltd .
 
 
Product Name: 5pcs 433M 315M Antenna for RF Superheterodyne Super-regenerative Wireless Module
 
 
 
Module No.:   TB338
    
  Package inlcuded:
 
5 pcs  433M 315M RF Superheterodyne Super-regenerative Antenna ;
 
Description :
  
25CM 50 Ohm single core wire
Use for 433M/315M RF wireless transceiver module(Superheterodyne/Super-regenerative)
When the antenna is used to straighten
433m Antenna length 18CM (you can cutting it )
315M Antenna length 24CM
Diameter : 1.05/0.5mm
 
 
 
   
 
 
 
Use Demonstration:
 

Product Name:  2pcs 4 Buttons key Switch Keyboard Matrix Board for Arduiuo UNO MEGA2560 Raspberry pi PCB PLC  
 
 
Packing list:
 
2 PCS  2.54mm Pads 4 Button key;
 
 
Description:
 Ideal for linking up to your  raspberry pi AVR STM32 RM PIC AT89C51 STC MSP430 STM8 STM32 XILINX ALTERA FPGA CPLD etc.
  
1 4-button Common Cathode key module .
 
2 " GND K1 K2 K3 K4" 4 2.54mm Pads      (Can be welded: Wires/Male Pin Header/Female Pin Header)      
 
3 Size: 12.7MM x 33MM.
 
 
Circuit schematics : 
 
 
 

 
Product Name :           900mA DC 12V 15V 24V to 9V dc dc voltage converter module Step Down Buck Regulator power supply Board         
    
  Packing list:
 
1 PCS DD4012SB_9V 11V-40V to 9V DC DC Buck Converter Module 
    
  
 
Description: 
   
Input voltage 11~40V,output 9V
 
Maximum output current 0.9A
 
DC-DC Step-Down Converter module working frequency 550KHz. efficiency is 75-90% .
 
Quiescent current: about 1.5MA
 
Overtemperature shutdown, input under-voltage protection, BS-voltage protection, and short circuit protection.
 
2.54mm pin pitch, Arduiuo UNO MEGA2560 Breadboard MCU Development Board friendly
 
 Size 18.3mm x 10.2mm x 6.7mm( small)
  
Weight : about 1.1g(Very light)
 
  
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
 
 
Applications:
  
 
9V Motor ​Toy
WIFI Router Switch
Network equipment
Multimeter instrumentation
CCTV camera
Electric toys
Wireless Module:Nrf24l01 CC1101 CC2500 CC2530 Zigbee
Smart home / home automation
Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
FM radio
Battery powered equipment
Audio amplifier
 
  
 
 

Below item is powered by eletechsup Ltd . 
 
Product Name:   mini 2.0mm Slotted Flat-blade screwdriver for Adjustable potentiometer 3296 3362 3386 3266 3006 EVM3ESX50B DD06AJSA TB398
  
Packing list:
 
3 PCS mini 2.0mm Slotted (Flat-blade) screwdriver
 
Description:
    
Mini screwdriver:
Specifications: 2.0MM, Slotted (Flat-blade) screwdriver
 
Handle material: environmentally friendly PVC
 
Total length of handle: 26MM
 
Tool bar material: 45# steel
 
Tool holder length: 21MM
 
Net weight: 1.3-1.4 grams.
 
 
This is a 2.0MM mini screwdriver, dedicated to the following products：
 
For Adjustable potentiometer:
 
3296W
3296P
3296X
3362P
3362W
3386P
3266W
3006P
EVM3ESX50B
 
 
for Product:
CE029/CE029A
RF22A04
RF11A04
DD06AJSA/DD06AJSB
DD40AJSA/DD40AJSB
TB398
TB293
 

Nama produk:       8 W DC 12-40 V untuk 9 V Tegangan Regulator DC-DC Converter Langkah-down Buck Modul ganti L7809 LM7809 TO-220 IC   
daftar Packing (tidak termasuk L7809):
 
1 PCSDD4012SA_9V 11 V-40 V untuk 9 V 900MA DC DC Buck Converter Modul
keterangan:
tegangan Input 11 ~ 40 V, output 9 V
 
maksimum output current 900MA
 
DC-DC Langkah-down Converter modul frekuensi kerja 550 KHz. efisiensi adalah 75-90% .
 
diam lancar: sekitar 1.5MA
 
Overtemperature shutdown, perlindungan di bawah tegangan input, BS-perlindungan tegangan, dan perlindungan sirkuit pendek.
 
2.54mm pin pitch, langsung Dapat menggantikan L78XXLM78XXTO-220 IC
ini adalah tegangan DC-DC converter modul, harus dicatat ketika menggunakan:
 
1 tegangan Input tidak bisa lebih besar dari berbagai masukan maksimum
2 Output daya tidak dapat lebih besar dari beban maksimum untuk waktu yang lama
3 Input daya harus lebih besar dari output daya, karena konsumsi daya dari modul itu sendiri
aplikasi:
9 V Motor
WIFIrouter
CCTVkamera
mainan mobil
Smart home/rumah otomatisasi
Distributed Power Sistem
baterai Charger
Pre-Regulator untuk Linear Regulator
& #8203;ganti L7809 LM7809
& #8203;

 
Product Name :     5W DC 9V 12V 15V 24V to 5V dc dc power supply converter module Step-Down Buck Voltage Regulator Module  
    
  Packing list:
 
1 PCS DD4012SB_5V 6.5V-40V to 5V DC DC Buck Converter Module 
    
  
 
Description: 
   
Input voltage 6.5~40V,output 5V
 
Maximum output current 1A
 
DC-DC Step-Down Converter module working frequency 550KHz. efficiency is 75-90% .
 
Quiescent current: about 1.5MA
 
Overtemperature shutdown, input under-voltage protection, BS-voltage protection, and short circuit protection.
 
2.54mm pin pitch, Arduiuo UNO MEGA2560 Breadboard MCU Development Board friendly
 
 Size 18.3mm x 10.2mm x 6.7mm( small)
  
Weight : about 1.1g(Very light)
 
  
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
 
 
Applications:
  
12V 9V TO 5V lithium battery-powered systems
5V Motor ​Toy
WIFI esp8266 HC-12 Bluetooth Module
CCTV camera
Electric toys
Wireless Module:Nrf24l01 CC1101 CC2500 CC2530 Zigbee
Smart home / home automation
Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
FM radio
Battery powered equipment
Audio amplifier
 
  
 

Di bawah item ini didukung oleh Canton-Power Ltd.
Nama produk: DD0606SA_4V5 1-4.5 V untuk 4.5 V DC DC Step up Boost Converter Modul Power Supply Papan untuk aaa duracell DC Motor mobil mainan
 
Daftar kemasan:
1 PCS 1 V-4.5 V UNTUK 4.5 VStep-up MeningkatkanModul
Deskripsi:
Tegangan Input DC 1 ~ 4.5 V, output DC 4.5 V ( -5% )
 
DC DC Boost Converter Modul frekuensi kerja 1MHZ. Efisiensi 66% -88% .
 
Kisaran suhu operasi:-25 ~ 85 Derajat Celcius
 
Kisaran suhu penyimpanan:-45 ~ 125 Derajat Celcius
 
2.54mm pin lapangan MCU Dewan Pengembangan Papan Tempat Memotong Roti ramah.
 
Tidak termasuk Ukuran Pin: 21.3mm x 12.5mm x 5.7mm (Sangat kecil)
 
Berat: 1.85g (Sangat ringan) 
 
   
Aplikasi
Baterai peralatan
Papan tempat memotong roti Power Supply
LENGAN STM32 FPGA CPLD Papan
WirelesS ModulEsp8266 nrf24l01 rtl8710 GSMDll
3.3 V daya Kecil motor
Kamera, Video kamera
3.3 V mobil Mainan
PDA
Lampu LED
Komunikasi nirkabel peralatan
Peralatan Audio 
Perhatian:
Ini adalah DC-DC tegangan converter modul harus dicatat dengan menggunakan:
1 tegangan Input tidak dapat lebih besar dari maksimum berbagai masukan
2 daya keluaran tidak dapat lebih besar dari beban maksimum untuk waktu yang lama
3 daya Input harus lebih besar dari daya output, karena konsumsi daya modul itu sendiri
Q & A:
Q: Mengapa tegangan output kurang dari Tegangan nominal
A: Input power supply power terlalu rendah. uji tegangan input dengan digital t ini tegangan input yang sangat rendah

 
Product Name :      1A DC 9-40V to 7.5V DC-DC Converter Step-Down Buck Module for switch Set top box Optical router Attendance machine Instruments
     
 
 Packing list:
 
1 PCS DD4012SA_7V5 9V-40V to 7.5V DC DC Buck Converter Module 
    
  
 
Description: 
​  
 
Input voltage 9~40V,output 7.5V
 
Maximum output current 1A
 
DC-DC Step-Down Converter module working frequency 550KHz. efficiency is 76-90% .
 
Quiescent current: about 1.5MA
 
Overtemperature shutdown, input under-voltage protection, BS-voltage protection, and short circuit protection.
 
2.54mm pin pitch, Arduiuo UNO MEGA2560 Breadboard MCU Development Board friendly
 
Excluding Pin Size 18.3mm x 10.2mm x 6.7mm( small)
 
Weight : about 1.3g(Very light)
 
  
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
 
 
Applications:
  
7.5V Motor
WIFI router
CCTV camera
LED
switch
Set top box
Optical  
Attendance machine
Instruments
Smart home / home automation
Distributed Power Systems
 
 
 

Below item is powered by eletechsup Ltd . 
 
Product Name:   300mA High Efficiency synchronous PFM step-up DC-DC converter 0.7-3V to 3V for AA AAA Dry cell powered equipment LED
  
Packing list:
 
1 PCS 300mA High efficiency & Low Quiescent Current 0.7-3V to 3V Step-up  Converter Module
  
Description:
Input voltage DC 0.7 ~ 3V,output DC 3V±2%
  
DC DC Boost Converter Module working frequency 350KHZ.
  
High efficiency : 95% (usually is 76% -93% )
  
Low Quiescent Current : 13uA
  
Low ripple and Low noise
    
2.54mm pin pitch,for MCU Development Board Breadboard friendly.
  
Ultra-small size(Not including pin) : 10.7x10.6x5.6mm
  
Ultra-light weight : 0.9g
  
 
 
Applications
AA AAA Dry cell powered equipment
Breadboard Power Supply
Small power motors
Camera, Video camera
Electric toys
Model aircraft
LED Lighting
CC1101 CC2500 ESP8266
Audio equipment 
 
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
  
Q & A:
     
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
 
 
 
   
 
 
 
 

Below item is powered by eletechsup Ltd . 
 
Product Name:   500mA High Efficiency 0.8-3.3V to 3.3V PFM Step-up DC-DC Converter for ds18b20 dht22 STM32 FPGA CPLD Power Supply
  
Packing list:
 
1 PCS 500mA High efficiency & Low Quiescent Current 0.8-3.3V to 3.3V Step-up  Converter Module
  
  
Description:
​  
Input voltage DC 0.8 ~ 3.3V,output DC 3.3V±2%
  
DC DC Boost Converter Module working frequency 350KHZ.
  
High efficiency : 95% (usually is 76% -93% )
  
Low Quiescent Current : 13uA
  
Low ripple and Low noise
    
2.54mm pin pitch,for MCU Development Board Breadboard friendly.
  
Ultra-small size(Not including pin) : 10.7x10.6x5.6mm
  
Ultra-light weight : 0.9g
  
 
 
Applications
Battery powered equipment
Breadboard Power Supply
Small power motors
Camera, Video camera
Electric toys
Model aircraft
LED Lighting
STM32 FPGA/CPLD PIC AVR Board
raspberry pi 
electronic diy kit
Temperature and humidity sensor : ds18b20 dht22
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
  
Q & A:
     
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
 
 
 
   
 
 
 
 

 
2.4G WIFI 3dbi PCB Antenna IPX IPEX WLAN Bluetooth Zigbee Wireless Module HSDPA
 
 
Module No.: TB220
 
Packing list:
 
 
 
 
1 PCS 3dbi IPEX PCB Antenna
 
 
 
Size:
 
 
 
 
 
 
Electrical Characteristics:
 
 
 
Frequency 2400 ~ 2500 MHz
 
S.W.R. <= 2.0
 
Antenna Gain 3.0 ± 0.7dBi
 
Polarization Linear
 
Impedance 50 Ohm
 
 
 
Material & Mechanical Characteristics:
 
 
 
Material of Radiator PCB
 
Cable Type O.D. 1.13 mm // 100 mm
 
Connector Type Mini Connector
 
Pull Test >= 1.0 Kg
 
 
 
Environmental:
 
Operation Temperature - 40 °C ~ 65 °C
 
Storage Temperature - 40 °C ~ 80 °C
 
 
 
APPLICATION:
 
 
1.IEEE 802.11 b/g/n WLAN System
 
2.Wireless Communication System
 
3.Wi-Fi / WiMAX / MIMO System
 
4.Laptop/Bluetooth/Zigbee Antenna
 

Below item is powered by Canton-Power Ltd . 
 
Product Name:  
 
DD0606SB_3V 1.5V 2V 2.5 to 3V DC DC Converter Step up Boost Board Power supply Module for sensor STM8 ARM Button Battery
  
Packing list:
 
1 PCS  DD0606SB 1V-3V TO 3V Step-up Boost Module
 
  
Description:
Input voltage DC 1 ~ 3V, output DC 3V( -5% )
 
DC DC Boost Converter Module working frequency 1MHZ.efficiency 65% -88% .
 
Operating temperature range : -25~ 85 Degrees Celsius
 
Storage temperature range : -45~ 125 Degrees Celsius
 
2.54mm pin pitch,MCU Development Board Breadboard friendly.
 
Excluding Pin Size : 21.3mm x 12.5mm x 5.7mm(Very small)
 
Weight : 1.66g(Very light) 
 
 Applications
Battery powered equipment
Breadboard Power Supply
Wireless Module, NRF24L01 Zigbee CC1101 CC2500 etc
3V Small power motors
Camera, Video camera
3V Toy car
PDA
LED Lighting
Wireless communication equipment
Audio equipment 
 
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
 
Q & A:
     
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
 
 
 
   
 
 
 

Product Name : 1200MA mini DC DC Converter 5V-23V to 3.3V Step Down Buck Regulator Module replace AMS1117 LDO
  
  Packing list:
 
1 PCS mini 1.2A DC DC Converter Step Down 4.75V-23V to 3.3V
    
  
 
 
Description: 
 
Input voltage 4.75~23V,output 3.3V
 
Maximum output current 1.2A,Short time maximum output current 2A
 
DC-DC Step-Down Converter module working frequency 1.4MHz. efficiency is 78-92% .
 
2.54mm pin pitch, Arduiuo Breadboard MCU Development Board friendly
 
Excluding Pin Size 22.5mm x 13.5mm x 6.5mm( small)
 
Weight : about 2.2g( Very light)
 
 
Applications:
 
MCU Development Board,FPGA/CPLD UNO MEGA2560 DUE 8051 AVR C8051 etc
3.3V LED Lighting
3.3V Motor
esp8266
Wireless Module:Nrf24l01 CC1101 CC2500 CC2530 Zigbee 
Smart home / home automation
315M 433M Wireless remote controller
Distributed Power Systems 
Battery Charger 
Pre-Regulator for Linear Regulators 
DSL Modems
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
   

Below item is powered by eletechsup Ltd . 
 
Product Name:   with Enable DC-DC Step-up Boost Converter 3V 3.3V 3.7V  to 5V Voltage Regulate for Arduino Breadboard stm32 LCD
  
Packing list:
 
1 PCS 6W DDEN12MA_5V 2.6V-4.5V TO 5V DC DC Boost Converter Module
 
 
 
Description:
​  
Input voltage DC 2.6 ~ 4.5V,output DC 5V±3%
 
Maximum output : 5V/1.3A(See the table below for details)
 
DC DC Boost Converter Module working frequency 1MHZ.
 
Up to 95% Efficiency (usually is 75% -92% )
 
Quiescent current : Turn on output 210uA,Turn off output 5uA.
  
Operating temperature range : -40~ 85 Degrees Celsius
 
Storage temperature range : -65~ 150 Degrees Celsius
 
2.54mm pin pitch,for Arduino UNO MEGA2560 MCU Development Board Breadboard friendly.
 
Size(Does not include pin) :  20 x 15 x 6MM
Weight : 1.8g
  
Protection : 
 
Over current protection(OCP)
Over voltage protection(OVP)
Short circuit protection(SCP)
Over temperature protection(OTP) 
 
Pin description:
 
Pin description:
Vi  : Input positive( )
En : Output enable, Connect to GND turn on output, Not connected(Or Connect to Vi)  turn off output
       This pin can also be controlled by MCU, low level turn on output, high level Turn off output
G  : Input and Output negative(GND/-)
Vo: Output positive( )
   
 
     
 
 Applications
 
Battery powered equipment
Instrumentation, multimeter
Small power motors
PTZ Camera webcam
Toy car boat
Model aircraft
power bank
LED Lighting
Mobile phone charger
LCD Displays
Handheld Devices
 
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
  
Q & A:
     
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
 
 
   
 
 
 
 

Nama produk: 3 V 3.3 V 3.7 V 4.5 V untuk 5 V DC DC Converter Step-Up Meningkatkan Current Mode PWM Tegangan Transformasi Modul
Daftar kemasan:
1 PCS 5 W 3 V-5 V UNTUK 5 V Meningkatkan Langkah UP Voltage Regulator    Modul

 
 
Deskripsi:
Tegangan Input 2.6 ~ 6 V, output 5 V (penyimpangan -6% )
Input maksimum saat ini: 1.2A
Jangka Panjang bekerja Saat Ini: 1A
Efisiensi konversi: 79-91%
Mulai Tegangan 2.6 V, Output Saat Ini 50MA
INPUT 2.8 V 1A; OUTPUT 5 V 290MA
INPUT 3 V 1A; OUTPUT 5 V 480MA
INPUT 3.3 V 1A; OUTPUT 5 V 590MA
INPUT 3.7 V 1A; OUTPUT 5 V 650MA
INPUT 4.5 V 1A; OUTPUT 5 V 790MA
DC-DC Meningkatkan modul bekerja frekuensi 1.0 MHZ.
Ambient operasi suhu:-40 ~ 85 Derajat Celcius
2.54mm pin lapangan Arduiuo UNO KARENA Papan Tempat Memotong Roti FPGA/CPLD  Development BoardRamah.
Lebih dari Perlindungan Suhu
Lebih dari Perlindungan Tegangan
Tidak termasuk Pin Ukuran 20.5mm x 10.16mm x 5.6mm (Sangat kecil)
Berat: sekitar 1.4g (Sangat ringan)
Aplikasi:
MCU Dewan Pengembangan, FPGA/CPLD UNO MEGA2560 KARENA 8051 AVR C8051 dll
RS485 PLC Modbus RTU
VIDEO PLAYER
PDA
Lampu LED
5 V Relay papan
Komunikasi nirkabel peralatan
315 M 433 M remote kontrol Nirkabel
Perhatian:
Ini adalah DC-DC tegangan converter modul harus dicatat dengan menggunakan:
1 tegangan Input tidak dapat lebih besar dari maksimum berbagai masukan
2 daya keluaran tidak dapat lebih besar dari beban maksimum untuk waktu yang lama
3 daya Input harus lebih besar dari daya output, karena konsumsi daya modul itu sendiri
Q & A:
Q: Mengapa tegangan output kurang dari Tegangan nominal
A: Input power supply power terlalu rendah. uji tegangan input dengan digital t ini tegangan input yang sangat rendah

Product Name:2.4G ESP8266 serial WIFI wireless transceiver module 2DBI gain Omnidirectional Antenna for Spark Core WLAN CC2540 Bluetooth
Packing list:
2 pcs 2.4G Ipex Omnidirectional Antenna
Description:
A. Electrical Characteristics
Frequency 2400 ~ 2500 MHz
S.W.R. <= 2.0
Antenna Gain 2.0 ± 0.7dBi @ 2450MHz
Polarization Linear
Impedance 50 Ohm
 
 
B. Material & Mechanical Characteristics
Material of Radiator Cu
Material of Plastic /
Cable Type 1.13
Connector Type Ipex Connector
Connector Pull Test >= 1 Kg
Connector Torque Test /
Length : About 10cm
Weight : About 1.1g(Very light)
 
C. Environmental
Operation Temperature - 40 °C ~ 65 °C
Storage Temperature - 40 °C ~ 80 °C
 
 
Typical applications:
 
IEEE 802.11 b/g/n WLAN System
Wireless Communication System
Wi-Fi / WiMAX / MIMO System
Bluetooth : CC2540
Zigbee : CC2530
WIFI Module : ESP8266,Spark Core

Below item is powered by Canton-Power Ltd . 
 
Product Name:   DD0606SA_3V7 " Input 1-3.7V Output 3.7V " DC-DC Converter Step up Boost Module for 18650 battery
  
Packing list:
 
1 PCS 1V-3.7V TO 3.7V Step-up Boost Module
 
  
Description:
Input voltage DC 1 ~ 3.7V, output DC 3.7V( -5% )
 
DC DC Boost Converter Module working frequency 1MHZ.efficiency 66% -88% .
 
Operating temperature range : -25~ 85 Degrees Celsius
 
Storage temperature range : -45~ 125 Degrees Celsius
 
2.54mm pin pitch,MCU Development Board Breadboard friendly.
 
Excluding Pin Size : 21.3mm x 12.5mm x 5.7mm(Very small)
 
Weight : 1.85g(Very light) 
 
 
   
Applications
Battery powered equipment
Breadboard Power Supply
ARM STM32 FPGA CPLD Board
Wireless Module,  esp8266 nrf24l01 rtl8710 GSM etc
3.3V Small power motors
Camera, Video camera
3.3V Toy car
PDA
LED Lighting
Wireless communication equipment
Audio equipment 
 
 
Attention :
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
 
Q & A:
     
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
 
 
 
   
 
 
 

di bawah item ini didukung oleh Daya Canton Ltd.
 
Nama produk: 1.5 V 1.8 V 3 V ke 3.3 V DC-DC Converter Step up Modul Meningkatkan esp8266 rtl8710 nrf24l01 Daya GSM pasokan Papan
  
daftar Packing:
 
1 PCS 1 V-3.3 V UNTUK 3.3 VStep-up Meningkatkanmodul
 
  
keterangan:
tegangan Input DC 1 ~ 3.3 V, output DC 3.3 V ( -5% )
 
DC DC Converter Meningkatkan Modul frekuensi kerja 1MHZ. efisiensi 66% -88% .
 
kisaran suhu operasi:-25 ~ 85 Derajat Celcius
 
kisaran suhu penyimpanan:-45 ~ 125 Derajat Celcius
 
2.54mm pin pitch, MCU Papan Pengembangan Papan Tempat Memotong Roti ramah.
 
tidak termasuk Pin Ukuran: 21.3mm x 12.5mm x 5.7mm (sangat kecil)
 
berat: 1.85g (sangat ringan) 
 
 
aplikasi
peralatan bertenaga baterai
Breadboard Power Supply
ARM STM32 FPGA CPLD Papan
Wireless Modul,esp8266 nrf24l01 rtl8710 GSMdll
3.3 V daya motor Kecil
kamera, Video kamera
3.3 V mobil Mainan
PDA
LED Pencahayaan
peralatan komunikasi nirkabel
perlengkapan Audio 
 
 
perhatian:
ini adalah tegangan DC-DC converter modul, harus dicatat ketika menggunakan:
1 tegangan Input tidak bisa lebih besar dari berbagai masukan maksimum
2 Output daya tidak dapat lebih besar dari beban maksimum untuk waktu yang lama
3 Input daya harus lebih besar dari output daya, karena konsumsi daya dari modul itu sendiri
 
Q & A:
     
Q: Mengapa tegangan output kurang dari tegangan nominal
A: Input power supply daya terlalu rendah. Uji tegangan input dengan sebuah multimeter, waktu dari tegangan input a t ini adalah sangat rendah
 
 
 
   
 
 
 

Product Name : DD0503MB tiny DC DC Converter 3.7V 4.2V 4.5V 5V 6V to 3.3V Step Down Buck Voltage Regulator Module for Bluetooth Cameras PDA
Packing list:
 
1 PCS   DD0503MB   Tiny 500mA DC DC Converter Step Down 3.3V-6V to 3.3V

 
 
 
 
Description:
 
Input voltage 3.3-6V, output 3.3V (deviation -5% )
 
Long time maximum output current 500mA
Short time maximum output current 700mA
Conversion efficiency : 80-93%
The maximum input voltage can not exceed 6.5V
 
INPUT 3.7V/600MA; OUTPUT 3.3V/550MA
INPUT 4V/600MA; OUTPUT 3.3V/610MA
INPUT 4.2V/580MA; OUTPUT 3.3V/600MA
INPUT 4.5V/550MA; OUTPUT 3.3V/620MA
INPUT 5V/470MA; OUTPUT 3.3V/590MA
INPUT 6V/370MA; OUTPUT 3.3V/550MA
 
DC-DC Buck Step-down module working frequency 1.2MHZ.
Operating ambient temperature : -40~ 85 Degrees Celsius
Size 10.8mm x 7.7mm x 5.6mm(Very small)
Weight : <1g(Very light)
 
Applications:
 
Wifi Module:ESP8266
Bluetooth module : HC-05 HC-06
Wireless UART module : HC-11 HC-12
wireless module : CC1101 CC2500 Nrf24l01
3-3.5V led lights
Model aircraft
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
 
 
 

 
Product Name :   DD4012SB_3V 1A DC-DC Step-Down Buck Converter Module DC 5V 6V 9V 12V to 3V Voltage regulator Board 
    
  Packing list:
 
1 PCS DD4012SB_3V3 4.75V-40V to 3.3V DC DC Step Down Converter Module 
    
  
 
Description: 
   
Input voltage 4.75~40V,output 3.3V
 
Maximum output current 1A
 
DC-DC Step-Down Converter module working frequency 550KHz. efficiency is 76-90% .
 
Quiescent current: about 1.5MA
 
Overtemperature shutdown, input under-voltage protection, BS-voltage protection, and short circuit protection.
 
2.54mm pin pitch, Arduiuo UNO MEGA2560 Breadboard MCU Development Board friendly
 
 Size 18.3mm x 10.2mm x 6.7mm( small)
  
Weight : about 1.1g(Very light)
 
  
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
 
 
Applications:
  
3.3V MCU ARM CPU FPGA/CPLD 
12V 5V TO 3.3V lithium battery-powered systems
3.3V Motor ​Toy
WIFI esp8266 HC-12 Bluetooth Module
CCTV camera
Wireless Module:Nrf24l01 CC1101 CC2500 CC2530 Zigbee
Smart home / home automation
Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
FM radio
Battery powered equipment
Audio amplifier
 
 
 
 

Below item is powered by Canton-Power Ltd . 
 
Input 3.7V/1220MA,Output 6V/640MA 
 
Input 4.5V/1100MA,Output 6V/700MA  
 
Input 5V/940MA,Output 6V/700MA 
 
 
 
   
 
Product Name:    DD0606SB_6V DC-DC 1-6V to 6V Boost Step up Converter Module Voltage Regulator Board for Electric toys Car kids toy
  
Packing list:
 
1 PCS DD0606SB_6V 1V-6V TO 6V DC DC Boost Converter Module
 
  
Description:
Input voltage DC 1 ~ 6V, output DC 6V( -5% )
 
DC DC Boost Converter Module working frequency 1MHZ.efficiency 66% -88% .
 
Operating temperature range : -25~ 85 Degrees Celsius
 
Storage temperature range : -45~ 125 Degrees Celsius
 
2.54mm pin pitch,MCU Development Board Breadboard friendly.
 
Excluding Pin Size : 21.3mm x 12.5mm x 5.7mm(Very small)
 
Weight : 1.85g(Very light) 
 
 
Applications
Battery powered equipment
Breadboard Power Supply
ARM STM32 FPGA CPLD Board
Wireless Module,  esp8266 nrf24l01 rtl8710 GSM etc
Small power motors
Camera, Video camera
Toy car
Phone PDA
LED Lighting
Wireless communication equipment
Audio equipment 
 
 
Attention :
 
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
  
Q & A:
     
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
 
 
 
 
   
 
 
 

Product Name:       AD Keyboard Simulate Four Key Module Analog Button for Arduiuo UNO MEGA2560 Sensor Expansion Board    
Packing list:
 
1 pcs 4 key  AD Keyboard
 
  Description:
1 Power Supply Voltage : 2-5V
2 4 Buttons 1 Analog Output(AD Pin)
3 PCB Size : 30x12mm
4 Weight : 1.5g
  
Ideal for linking up to your Ardiuno UNO Mini Nano Mega2560 etc,or others MCU ( AVR STM32 ARM7 ARM9 ARM10 PIC AT89C51 STC MSP430 FPGA CPLD etc.) 
 
 
 
   
 
 
Circuit schematics : 
 
Connection with Arduiuo UNO :
 
Arduiuo uno/mega2560 Code  
//******************************************************//
 
/*
  Arduiuo_4 key analog Buttons
 
  This example code is in the public domain.
 */
 
#define key1ValueMin     96
#define key1ValueMax     106
#define key2ValueMin     144
#define key2ValueMax     159
#define key3ValueMin     193
#define key3ValueMax     213
#define key4ValueMin     242
#define key4ValueMax     255
 
 
int adPin = A0;    // select the input pin for the potentiometer
int keyValue;
int keyValue_r;
int keyValue_rr;
 
 
//key scan
int key_scan(void)
{
   int adValue;
   int key;
   
   adValue = analogRead(adPin);//read ad Value
  
  adValue = adValue / 4;
  
  if(adValue >= key1ValueMin && adValue <= key1ValueMax)// k1
  {
    key = 1;
  }
  else if(adValue >= key2ValueMin && adValue <= key2ValueMax)// k2
  {
    key = 2;
  }
  else if(adValue >= key3ValueMin && adValue <= key3ValueMax)// k3
  {
    key = 3;
  }
  else if(adValue >= key4ValueMin)// k4
  {
    key = 4;
  }
  else //Invalid value
  {
    key = 0; 
  }
  
  return key;
  
}
void setup() {
  
   Serial.begin(9600);
}
 
void loop() {
 
  //Save three key scan value
  keyValue_rr = keyValue_r;
  keyValue_r = keyValue;
  keyValue = key_scan();
  
  //Three scanned values are the same, indicating that key is valid
  if(keyValue > 0 && keyValue==keyValue_r && keyValue_r==keyValue_rr)
  {
   Serial.print("keyValue = ");
    Serial.println(keyValue);
  }
  
  delay(100); //Each scan interval 100-200MS       
 
}
 
//******************************************************//