Egyéb elektromos berendezések és kellékek

K155Y 5mm Helicopter DIY Plastic Propeller Screw For Model Motor Aircraft Helicopter DC Motor High Quality On Sale
 

 
Description:
Diameter (Length):75MM
Hole Diameter:0.95mm (Suitable for mini DC Motor)
Material: DIY Professional Plastic.
Color:Black Red
For: 716 720 820 hollow cup motor
 
Package Included:
4 Pcs 75MM Propeller
 

DC-DC Buck Step-down Power Supply Module 5V-12V 24V To 3.3V 5V 9V 12V Fixed Output High-Current
Description
1. Design Grade - Industrial Grade
2. Input voltage range 4.5 - 28VDC (must be greater than 1V output)
3. Output voltage 3.3V, 5V, 9V, 12V, adjustable output. There are five types, please see the specific model of the module.
4. Peak output current 3000mA (2.5A for a long time)
5. DCDC conversion efficiency 92%
6. Full-load output ripple Vpp < 50mV
7. Output Precision: 0.1V
8. No-load current IQ 0.5mA
9. Turn-off Current (EN Grounding) Not Turn-off
10. Heat dissipation mode, natural cooling
11. Working temperature - 40 ~85 ~
12. Storage temperature - 40 ~125 ~
13. Relative humidity 20-90%
14. Module size: length * width * height = 16.5 * 22 * 4mm
15 PCB Layer Double Panel
16. Installation method, patch or 2.54 row pin plug-in
17. Production process - reflow welding
18. Isolation or not
19. Device Source: Partial Import, Partial Domestic
20 Design Aging Standard 720 Hours Fault-free
21. Out-of-factory aging standard 72 hours
22. Service life 1000000 hours trouble-free (output current not exceeding rated value)
23. Ex-factory Inspection Standard 2 times. All tests (factory test warehouse test)
Package Included
1 Pcs 3A Step-Down Module

DC-DC Buck Step-down Power Supply Module 5V-12V 24V To 3.3V 5V 9V 12V Fixed Output High-Current
Description
1. Design Grade - Industrial Grade
2. Input voltage range 4.5 - 28VDC (must be greater than 1V output)
3. Output voltage 3.3V, 5V, 9V, 12V, adjustable output. There are five types, please see the specific model of the module.
4. Peak output current 3000mA (2.5A for a long time)
5. DCDC conversion efficiency 92%
6. Full-load output ripple Vpp < 50mV
7. Output Precision: 0.1V
8. No-load current IQ 0.5mA
9. Turn-off Current (EN Grounding) Not Turn-off
10. Heat dissipation mode, natural cooling
11. Working temperature - 40 ~85 ~
12. Storage temperature - 40 ~125 ~
13. Relative humidity 20-90%
14. Module size: length * width * height = 16.5 * 22 * 4mm
15 PCB Layer Double Panel
16. Installation method, patch or 2.54 row pin plug-in
17. Production process - reflow welding
18. Isolation or not
19. Device Source: Partial Import, Partial Domestic
20 Design Aging Standard 720 Hours Fault-free
21. Out-of-factory aging standard 72 hours
22. Service life 1000000 hours trouble-free (output current not exceeding rated value)
23. Ex-factory Inspection Standard 2 times. All tests (factory test warehouse test)
Package Included
1 Pcs 3A Step-Down Module

DC-DC Buck Step-down Power Supply Module 5V-12V 24V To 3.3V 5V 9V 12V Fixed Output High-Current
Description
1. Design Grade - Industrial Grade
2. Input voltage range 4.5 - 28VDC (must be greater than 1V output)
3. Output voltage 3.3V, 5V, 9V, 12V, adjustable output. There are five types, please see the specific model of the module.
4. Peak output current 3000mA (2.5A for a long time)
5. DCDC conversion efficiency 92%
6. Full-load output ripple Vpp < 50mV
7. Output Precision: 0.1V
8. No-load current IQ 0.5mA
9. Turn-off Current (EN Grounding) Not Turn-off
10. Heat dissipation mode, natural cooling
11. Working temperature - 40 ~85 ~
12. Storage temperature - 40 ~125 ~
13. Relative humidity 20-90%
14. Module size: length * width * height = 16.5 * 22 * 4mm
15 PCB Layer Double Panel
16. Installation method, patch or 2.54 row pin plug-in
17. Production process - reflow welding
18. Isolation or not
19. Device Source: Partial Import, Partial Domestic
20 Design Aging Standard 720 Hours Fault-free
21. Out-of-factory aging standard 72 hours
22. Service life 1000000 hours trouble-free (output current not exceeding rated value)
23. Ex-factory Inspection Standard 2 times. All tests (factory test warehouse test)
Package Included
1 Pcs 3A Step-Down Module

DC-DC Buck Step-down Power Supply Module 5V-12V 24V To 3.3V 5V 9V 12V Fixed Output High-Current
Description
1. Design Grade - Industrial Grade
2. Input voltage range 4.5 - 28VDC (must be greater than 1V output)
3. Output voltage 3.3V, 5V, 9V, 12V, adjustable output. There are five types, please see the specific model of the module.
4. Peak output current 3000mA (2.5A for a long time)
5. DCDC conversion efficiency 92%
6. Full-load output ripple Vpp < 50mV
7. Output Precision: 0.1V
8. No-load current IQ 0.5mA
9. Turn-off Current (EN Grounding) Not Turn-off
10. Heat dissipation mode, natural cooling
11. Working temperature - 40 ~85 ~
12. Storage temperature - 40 ~125 ~
13. Relative humidity 20-90%
14. Module size: length * width * height = 16.5 * 22 * 4mm
15 PCB Layer Double Panel
16. Installation method, patch or 2.54 row pin plug-in
17. Production process - reflow welding
18. Isolation or not
19. Device Source: Partial Import, Partial Domestic
20 Design Aging Standard 720 Hours Fault-free
21. Out-of-factory aging standard 72 hours
22. Service life 1000000 hours trouble-free (output current not exceeding rated value)
23. Ex-factory Inspection Standard 2 times. All tests (factory test warehouse test)
Package Included
1 Pcs 3A Step-Down Module

MFRC-522 RC-522 RC522 RFID Wireless IC Module S50 Fudan SPI Writer Reader Card Key Chain Sensor Kits 13.56Mhz For Uno
1 RFID-RC522 module one;
2 The standard S50 blank card one;
3 S50 shaped cards one (as shown keychain shape);
4 Vertical, curved row of pins each one;
Electrical parameters [Introduction]
Current :13-26mA / DC 3.3V
Idle Current :10-13mA / DC 3.3V
Sleep current: <80uA
Peak current: <30mA
Operating Frequency: 13.56MHz
 
Supported card types: mifare1 S50, mifare1 S70, mifare UltraLight, mifare Pro, mifare Desfire
Product Physical Characteristics: Dimensions: 40mm × 60mm
Environmental Operating temperature: -20-80 degrees Celsius
Environment Storage temperature: -40-85 degrees Celsius
Relative Humidity: 5% -95%
 
[Module Interface SPI Parameters
Data Transfer Rate: Max. 10Mbit / s
 
Shipping List:
1 Pcs RFID-RC522 module
1 Pcs The standard S50 blank card
1 Pcs S50 special-shaped card a (as shown by the key ring shape)
1 Pcs Straight, curved rows of pin of the article
 

MQ-7 module Carbon monoxide gas sensor detection alarm MQ7 sensor module for arduino
Description:
Gas Sensor Module
Testing gas: Carbon Monoxide
Detection of concentration: 10-1000ppmCO
Loop voltage: 10V DC
Heater voltage: 5V±0.2V ACorDC(high), 1.5V±0.1V ACorDC(low)
Load resistance: adjustable
Heating resistor: 31±3(indoor temperature)
Heating dissipation: 350mW
Sensitive part surface resistance: 2K-20K
Sensitivity: Rs(in air)/Rs(100ppmCO)5
Concentration gradient: 0.6
Temperature, humidity: 20±2, 65% ±5% RH
Standard test circuit: Vc: 5v ±0.1v, Vh(high): 5v ±0.1v, Vh(low): 1.5v ±0.1v
Condition: New
Color is shown as pictures
PLS NOTE that due to lighting effects, monitor's brightness/ contrass settings ect, there could be some slight differences in the color tone of the pictures and the actual item!
Article-Nr.:5401413, 54014132, 54014133, 54014135
Package included:
100% Brand New
1 PCS MQ-7 Module
 

 
T RX Plugs Lipo NiMh Brushless ESC Lipo Battery RC Connector Quadcopter Airplane
 

Description:
Are easy for fingers to grip and the clever reverse-polarity protection makes Tra connectors virtually impossible to plug in backwards.
 
Shrouded wire connections eliminate the extra steps to install heat shrink tubing. Beefy, gold-plated copper terminals with large, spring-loaded contact areas ensure a perfect connection every time. Even after thousands of uses, Tra connectors maintain their precision feel and incredibly low resistance.
 
Package Included:
1 Pair TR X Plugs
 

4 Bits TM1637 Red Digital Tube LED Module & Clock for Uno LED
Description:
The module is a 12-foot clock with 4 points of positive digital (0.36 inches) display module driver IC TM1637, only two signal lines can make SCM four 8-segment LED.
Module features are as follows:
Display of male red for the four digital tube
Adjustable digital tube 8 gray
Level control interface for 5V or 3.3V
4 M2 screws positioning holes for easy installation
4 digital display interface module as shown below:
Control Interface: A total of four pins (GND, VCC, DIO, CLK), GND to ground, VCC is the power supply, DIO of data input and output pin, CLK is the clock signal pin;
Digital tube: 4 common anode score points with 0.36 inches LED, red highlights;
Positioning holes: 4 M2 screws positioning hole diameter is 2.2mm, the positioning of the module is easy to install, to achieve inter-module combination;
 
Package Included
1 Pcs 4 Bits Digital Tube LED Display Module

 
 
DC DC boost power supply module XL6019 voltage stabilized power supply module output 5V/12V/24V adjustable
Description:
1.conventional constant voltage output topology BOOST fully integrated solutions, integrated MOSFET, fewer external components, lower system cost
2.wide voltage range input,the input voltage up to 35V
3.output voltage is adjustable,supports up to 40V
4.built-in over-temperature protection, overcurrent protection circuit full set of reliability, high reliability
5.the system conversion efficiency of over 90% , to facilitate thermal design
6.TO263-5L standard package,suitable for 30W boost applications within.
Instructions:
1.Power (3-35V), power indicator light, the module is working properly.
2.Adjust the blue potentiometer knob (counter-clockwise general boost, buck clockwise rotation) and with a multimeter to monitor the output voltage reaches the required voltage.
NOTE:
1.Current work long hours is recommended for use in less than 2.5M, while adding bulk Heat sink (10W output above); because it is boosting module, in order to ensure stable output Set, please keep the minimum 1.5V differential.
 
Shipping list:
1 Pcs XL6019 module 
 

 
PL2303HX USB To UART TTL USB To Micro USB 5P Cable Adapter Module Converter
 

 
Description:
1.Built-in TTL COM PC-PL2303HX Chip.
2.Standard USB type A male and Micro USB 5P   connector
3.Simple and Easy way to give USB support to your designs
4.Available for Linux, Mac, WinCE and Windows (XP, 2003), Vista  Win 7
 
Package Included:
1 Pcs USB to UART cable
 

DIY Kits Metal Detector Scanner Unassembled Kit Electroniqu Project 3-5V Suite Trousse Board Module Electronic Part
Description:
100% Brand new and high quality Metal Detector 
Working voltage : 3-5V DC 
Dimension : 66 X 61 MM 
Max detector distance : 2CM ~ 5CM
This is an Electronic DIY KIT , some soldering experience is required.  The PCB (Printed Circuit Board) is provided with the DIY KIT and it needs to be soldered, hence the name DIY KIT.  All required electronic parts are provided, please refer to the images for more details. 
Package including : All components to build this kit
1.1 X PCB Board (color will be shipped out by randomly )
2.1 X Buzzer 
3.1 X 100UF 25V  Electronic capacitor 
4.2 X 104 ceramic capacitor 
5.2 X 222   polyester capacitor 
6.1 X 220KR 0.25w metal film resistor 
7.1 X 2.2KR 0.25w metal  film resistor 
8.1 X 100R  Blue&white Potentiometer 
9.1 X 9018 transistor 
10.1 X 9015 transistor 
11.1 X 9012 transistor 
12.1 X 10CM RED 22AWG Line 
13.1 X 10CM Black 22 AWG line
Package included:
1 Set Metal Detector Scanner parts

 
 
22mm AD16-22 LED Display AC 12-500V Digital Voltage Voltmeter Panel Display Indicator Light Red Yellow Green Blue White LED AD16-22DSV
 
 
 
Description
AC Voltmeter
Measuring range: AC12-500V, measuring 220V direct fire line zero line, measuring 380V directly connected to 2 fire lines.
Product Name: Digital display voltage indicator
Product model: AD16-22DSV
Working life: ≥30000 hours
Opening diameter: 22mm
Luminous color: red / yellow / green / blue / white
Voltage range: AC12V-500V
Protection level: P58
Refresh rate: about 200s/time
 
Package Included
1 Pcs AC12-500V Digital Voltage Voltmeter

 
 
22mm AD16-22 LED Display AC 12-500V Digital Voltage Voltmeter Panel Display Indicator Light Red Yellow Green Blue White LED AD16-22DSV
 
 
 
Description
AC Voltmeter
Measuring range: AC12-500V, measuring 220V direct fire line zero line, measuring 380V directly connected to 2 fire lines.
Product Name: Digital display voltage indicator
Product model: AD16-22DSV
Working life: ≥30000 hours
Opening diameter: 22mm
Luminous color: red / yellow / green / blue / white
Voltage range: AC12V-500V
Protection level: P58
Refresh rate: about 200s/time
 
Package Included
1 Pcs AC12-500V Digital Voltage Voltmeter

MQ8 MQ 8 MQ-8 Smoke Liquefied Flammable Methane Gas Sensor Module for Arduino Diy Starter Kit
 
Product Description:
Size: 32 mm X22mm X27mm
Main chip: the LM393, MQ-8 gas sensor
Working voltage: DC5V
1. With a signal output instructions.
2. Dual signal output (TTL level output and analog output)
3. TTL output valid signal for low level. (when the low output electric signal lights at 4. ordinary times, can be directly pick up SCM)
5. Analog 0 ~ 5 v voltage, the higher the concentration, the higher the voltage.
6. High sensitivity to hydrogen
7. Can be resistant to ethanol steam, LPG (petroleum), smoke interference
8. Has a long service life and reliable stability
9. Quick response recovery features
Package included:
100% Brand New
1 PCS MQ-8 Module

Hall Current Sensor Module ACS712 20A model for Uno
 
Description:
The current sensor chips: ACS712ELC-20A;
Pin 5V power supply, on-board power indicator;
The module can be measured plus or minus 20 amps, corresponding to the analog output of 100 mV / A;
There is no the detection current through, the output voltage is VCC / 2;
PCB board size: 31 (mm) x13 (mm);
 
Package Included
1 PCS ACS712 module

51 AVR MCU Minimum System Board Development Board Learning Board STC Minimum System Board Microcontroller Programmer
Description:
1.IO mouth full extraction, the classic 51 minimum system, eliminating the trouble of welding
2.Integrated 10P ISP download interface, easy to download AT89S52 mcu.
3.Welding is round hole socket, to facilitate the replacement of the crystal (default 11.0592M)
4.Support chip: STC12C5A60S2 STC11/10x STC89C52 series AT89S52 and chip pin compatible with the chip
5.A power switch, convenient experiment.
6.Power input in 2 ways: DC-005 power supply (supporting transposon is 5.5*2.1) and single pin (power switch side)
7.Extension 3 VCC, GND, as shown in figure pin.
8.P0 port with pull up resistor.
9.Reset mode: power on reset and external reset.
10.The use of green IC lock seat, easy to replace the chip.
11.Our independent development and production, supply long-term stability.
12.Board size: 4.1cm*8.9cm
Package Included：
1 Pcs 51 singlechip small system board

5V 12V 2-Channel Relay Module Shield for Ardui ARM PIC AVR DSP Electronic 5V 12V 2 Channel Relay Module
 
Description:
1.Relay contact capacity 250V10A. Relay output normally open, normally closed;
2.Active low. 5V/12V relay signal input voltage range :0-5V
3.The VCC system power. JD-VCC relay power. Default 5V/12V relay. JD-VCC and VCC shorted.
 
Package Included
1 Pcs 2-Channel Relay Module

Quality Test of The Quality Test Hook Clip Logic Analyzer Test Folder for USB 24M 8CH
Description:
Test Hook Color: Red / Yellow / Green / Blue / Black / White
Length: 28CM
 
Package Includes:
5 Pcs Quality test of the quality test hook clip
 

Quality Test of The Quality Test Hook Clip Logic Analyzer Test Folder for USB 24M 8CH
Description:
Test Hook Color: Red / Yellow / Green / Blue / Black / White
Length: 28CM
 
Package Includes:
5 Pcs Quality test of the quality test hook clip
 

Quality Test of The Quality Test Hook Clip Logic Analyzer Test Folder for USB 24M 8CH
Description:
Test Hook Color: Red / Yellow / Green / Blue / Black / White
Length: 28CM
 
Package Includes:
5 Pcs Quality test of the quality test hook clip
 

Quality Test of The Quality Test Hook Clip Logic Analyzer Test Folder for USB 24M 8CH
Description:
Test Hook Color: Red / Yellow / Green / Blue / Black / White
Length: 28CM
 
Package Includes:
5 Pcs Quality test of the quality test hook clip
 

Quality Test of The Quality Test Hook Clip Logic Analyzer Test Folder for USB 24M 8CH
Description:
Test Hook Color: Red / Yellow / Green / Blue / Black / White
Length: 28CM
 
Package Includes:
5 Pcs Quality test of the quality test hook clip
 

Quality Test of The Quality Test Hook Clip Logic Analyzer Test Folder for USB 24M 8CH
Description:
Test Hook Color: Red / Yellow / Green / Blue / Black / White
Length: 28CM
 
Package Includes:
5 Pcs Quality test of the quality test hook clip
 

 
Hot 12V2A Good Quality Power Supply Adapter For CCTV Camera IP Camera And DVR,AC100-240V To DC12V2A Converter
 

 
Description:
Use for: Digital and electronic products,LED, CCTV supervisory system, DVR, High Speed Ball camera, video camera, Alarm, warner ,IP camera
AC/DC adapter
Style   Direct Plug-In  
Input 100-240V
Out voltage 12V
Out current 2A
Package size     12CM*5CM*7CM
Weight 0.16kg
AC100-240V to DC12V 2A power adapter 
 
Package Included:
1 Pcs 12V2A Good Quality Power Supply Adapter
 

Hall Current Sensor Module ACS712 Module 5A 20A 30A Hall Current Sensor Module 5A/20A/30A ACS712
 
 
Description
ACS712 5A:
1, current sensor chips: ACS712ELC-05B;
2, pin 5V power supply, on-board power indicator;
3, the module can be measured plus or minus 5 amps, corresponding to the analog output of 185 mV / A;
4, there is no the detection current through, the output voltage is VCC / 2;
5, PCB board size: 31 (mm) x13 (mm);
ACS712 20A:
1, current sensor chip: ACS712ELC-20A;
2, pin 5V power supply, on-board power indicator;
3, the module can measure the positive and negative 20 amps, corresponding to the analog output 100mV / A;
4, there is no the detection current through, the output voltage is VCC / 2;
5, PCB board size: 31 (mm) x13 (mm);
ACS712 30A:
1.current sensor chips: ACS712ELC-30A;
2.Pin 5V power supply, on-board power indicator;
3.The module can measure the positive and negative 30 amps, corresponding to the analog output 66mV / A;
4.No test current through the output voltage is VCC / 2;
5, PCB board size: 31 (mm) x13 (mm);
 
Package Included
1 Pcs ACS712 Hall Current Sensor Module ACS712
 

 
DC-DC Converter Output Step Up Boost Power Supply Module 3V to 5V 1A USB Charger For Phone MP3 MP4 96% Efficiency
This product is expecially suitable for Iphone !!!
 
Description:
Module Properties: non-isolated step-up module (BOOST)
input voltage: 2-5V
Output voltage: 5.1-5 .2 V
Output Current: Rated 1A-1.5A (single lithium input), the maximum 1.5A (single lithium input)
Efficiency: Up to 96% (the higher the input voltage, the higher the efficiency)
Switching frequency: 500KHz
Output ripple: 30mV (MAX) 20M bandwidth (input 4V output 5.1V 1A)
Voltage indication: LED lights with load (input voltage less than 2.7V LED indicator off)
Operating Temperature: Industrial (-40°c to 85°c)
Full load temperature rise: 30°c
Quiescent Current: 130uA
Load regulation: ± 1%
Voltage regulation: ± 0.5%
Dynamic response speed: 5% 200uS
Short circuit protection: None (Please use the lithium battery with protection.)
Input Reverse Polarity Protection: None
Connection: Welding
Input: IN Postive, IN-Negative
Output: USB Output
Size:approx.23mm x18mm x5mm
Package Included
1 PCS non-isolated step-up module

NE555 CD4017 Practice Learing Kits LED Flashing Lights Module Electronic Suite LSD-10 3-4.5V DIY For Uno
Description:
Supply Voltage :3 - 4 .5 V
PCB size: 77 * 30mm
PCB thickness: 1.0mm
Circuit:
The kit mainly by the clock generation circuit and decimal counter circuit constitute
By NE555 core self-excited multivibrator power through R2, R1, VR1 to charge the capacitor C2, when C2 just start charging, U1's pin 2 is low, so the output end of the 3 foot was high power by R2, R1, VR1 C2 charges to 2/3 of the supply voltage, the output level of 3 feet from high to low, U1 internal discharge tube is turned on, capacitor C2 via VR1, R1, U1 pin 7 discharge , less than 1/3 of the supply voltage until the voltage across C2, U1's level of 3 feet from the low to high level. C1 again charging, so the cycle formed oscillation. The charging time is: 0.695 (R2 R1 VR1) C2 discharge time: 0.695 (VR1 R1) C2, regulator VR1 can be controlled oscillator output frequency, U1 clock oscillation signal constantly applied to the U2 to pin 14, U2's 10 output terminal 10 is connected with LED, when U2's 10 output terminal to produce a high level in the clock signal under the action of rotation, D1 - D10 are sequentially lit, thereby forming a flowing light effect.
Adjust VR1 to adjust the flow rate of the LED lights.
Package included:
1 Set NE555 CD4017 Practice Learing Kits LED Flashing Lights Module

XH 2.54 connecting line (Each line with 1 seats)
 

 
Ltrasonic Module HC-SR04 Distance Measuring Transducer Sensor For Arduino HCSR04 DC 5V IO Trigger Sensor Module HC SR04 Board Support
 

 
Description:
1.This module performance is stable, measure the distance accurately. performance nearly the same as SRF05, SRF02 SRF05, SRF02 ultrasonic distance measuring module and other comparable. Module High precision, blind spots (2cm) super close.
2.Main technical parameters:
Voltage: DC 5V 
Static current: less than 2mA 
Electrical level output: 5V high 
Electrical level output: at the end of 0V 
Induction angle: not more than 15 degrees 
Detection distance: 2cm-450cm 
High precision: 2mm
Wiring: VCC, trig (control side), echo (receiving end), GND
3.Module works:
using IO trigger distance, the high signal to at least 10us
module automatically sends eight 40khz square wave, automatically detects whether a signal return;
a signal back, through the IO output a high electrical level, high electrical level duration is: the ultrasound time from launch to return. Test distance = (time of the high electrical level * speed of sound (340M / S)) / 2;
 
Package Included:
1 Pcs HC-SR04 Ultrasonic Distance Sensor Module
1 Pcs Support
 
 

 
 
HY-SRF05 SRF05 Ultrasonic Distance Sensor Module Replace SR04 Module Support

Description:
This module performance is stable, precise measure distance.Can and foreign SRF05, SRF02 ultrasonic ranging module.Module with high precision, blind area (2 cm) very close, stable range is powerful according to the product to the market success!
 
The main technical parameters:
1: using voltage: DC5V
2: the static current: less than 2 ma
3: high level output: 5 v
4: level output: 0 v
5: induction Angle: no greater than 15 degrees
6: detection range: 2 cm - 450 cm
7: high precision: up to 0.3 cm
 
This product use: a mouth sends a high level of more than ten us, you can receive the mouth for high level output. To be able to open the timer timing, an output when the mouth into a low electricity at ordinary times you can read the value of the timer is here for the distance of time, can calculate the distance. So constantly cycle test, you can reach your mobile measuring the value of the ~ ~
 
Working principle of the module:
(1) the IO trigger range, high level signal for at least 10 us;
(2) module automatically sent eight 40 KHZ square wave, automatically detect whether there is signal to return;
(3) have returned signal, through the IO output high level, the duration of the high level is the time of ultrasonic wave from launch to return. The test distance = (high level of time * sound velocity (340 m/S)) / 2;
 
Package Included:
1 Pcs HY-SRF05 Ultrasonic Distance Sensor Module
1 Pcs Support
 
 
 

 
 
Digital USB Mobile Power Charging Current Voltage Tester Meter Mini USB Charger Doctor Voltmeter Ammeter
 
 
Description:
1.Easy to measure the USB output vollage and the device input current or loader voltage.
2.Availabe for every USB electronic product,such as PC USB,home charger,car charger and so on.
3.Plug and ,light and handy,easy to carry and no need external power.
4.Through "DR CHARGER",you could clearly know the condition of the charger,phone,usb cable and every USB device.
Detection range:
Voltage:DC 3.5V-7V,error 0.1V
Current:0-3.0A,error 2%
 
Package Included:
1 Pcs LED Digital Voltmeter Ammeter USB Charger Doctor
 

 
 
Digital USB Mobile Power Charging Current Voltage Tester Meter Mini USB Charger Doctor Voltmeter Ammeter
 
 
Description:
1.Easy to measure the USB output vollage and the device input current or loader voltage.
2.Availabe for every USB electronic product,such as PC USB,home charger,car charger and so on.
3.Plug and ,light and handy,easy to carry and no need external power.
4.Through "DR CHARGER",you could clearly know the condition of the charger,phone,usb cable and every USB device.
Detection range:
Voltage:DC 3.5V-7V,error 0.1V
Current:0-3.0A,error 2%
 
Package Included:
1 Pcs LED Digital Voltmeter Ammeter USB Charger Doctor
 

 
MAX485 module, RS485 module, TTL turn RS - 485 module, MCU development accessories
Description:
1.On-board MAX485 chip, A low power consumption for the RS-485 communication, slew-rate limited transceiver.
2. On board then 5.08 (mm) pitch 2P terminal to facilitate RS-485 communication wiring.
3.All pins of chip have been lead to can be controlled through the microcontroller.
4. Working voltage: 5V.
5. Board size: 44 (mm) x14 (mm).
 
Package Included:
1 Pcs MAX485 TTL TO RS485 Module
 

 
UNO Proto Shield Prototype Expansion Board with SYB-170 Mini Bread Board Based for ARDUINO UNO ProtoShield
 
 
Description
Used in conjunction with the Duemilanove ProtoShield prototype expansion board, the circuit is used to build a prototype, can be directly soldered components on the board, you can also connect the above mini breadboard circuit. Bread board and circuit board via double-sided adhesive connections, sold bread board and the circuit board are separated.
ProtoShield prototype expansion board with two buttons and two LED circuit can be used directly, all of the pins and the power leads are very fit and build circuit prototyping with Ardui-no.
 
Package Included
1 Pcs UNO Proto Shield Prototype Expansion Board

Four-Way Infrared Tracing 4 Channel Tracking Sensor Module Transmission Line Modules Obstacle Avoidance for Uno
 
Description:
Operating voltage: DC 3.3V-5V
Operating Current:>1A
Operating temperature: -10 C - 50 C
Mounting Hole: M3 screws
Detection distance: 1mm to 60 CM adjustable, the closer the distance,the more stable performance, and white reflection farthest.
Size(mm): central control board:42(L) × 38(W) × 12(H)
               small board:25(L) × 12(W) × 12(H)
Output Interface: 6-wire (1234: signal output, : positive supply -: ground)
Output signal: TTL level
 
Package including:
1 Pcs 4 Channel IR Infrared Line Detector Tracking Sensor module

 
 
Digital USB Mobile Power Charging Current Voltage Tester Meter Mini USB Charger Doctor Voltmeter Ammeter
 
 
Description:
1.Easy to measure the USB output vollage and the device input current or loader voltage.
2.Availabe for every USB electronic product,such as PC USB,home charger,car charger and so on.
3.Plug and ,light and handy,easy to carry and no need external power.
4.Through "DR CHARGER",you could clearly know the condition of the charger,phone,usb cable and every USB device.
Detection range:
Voltage:DC 3.5V-7V,error 0.1V
Current:0-3.0A,error 2%
 
Package Included:
1 Pcs LED Digital Voltmeter Ammeter USB Charger Doctor
 

 
 
Digital USB Mobile Power Charging Current Voltage Tester Meter Mini USB Charger Doctor Voltmeter Ammeter
 
 
Description:
1.Easy to measure the USB output vollage and the device input current or loader voltage.
2.Availabe for every USB electronic product,such as PC USB,home charger,car charger and so on.
3.Plug and ,light and handy,easy to carry and no need external power.
4.Through "DR CHARGER",you could clearly know the condition of the charger,phone,usb cable and every USB device.
Detection range:
Voltage:DC 3.5V-7V,error 0.1V
Current:0-3.0A,error 2%
 
Package Included:
1 Pcs LED Digital Voltmeter Ammeter USB Charger Doctor
 

 
DC 12V 8A LED Light Protect Strip Dimmer Adjustable Brightness Controller Hot Selling In Stock
 
Features:
0~100% brightness adjustable
Easy to install and simple to use 
Adjust the light soft and stable, no flickering. 
PWM digital dimming, avoid rush current, protect your LED lights
Mainly use to adjust single color LED light lamps and Led Strip.
Constand voltage and constand current output, can be connected with amplifiers to extend its load 
Applications: 
You can conveniently adjust the brightness of your LED bulbs/Led Strip with this dimmer 
led Dimmer is a controller that it can adjust brightness infinitely, its control mode is knob-operated control, you could adjust light to the appropriate lighting brightness in accordance with your actual need,Perfect tools for most lighting purpose 
 
Specifications:
Type:12V-24V 8A Dimmer
Input: 12V-24V 
Output: 1 Channel 96W 12V-24V (0-8A )
Static power consumption: 1W 
There is a black knob, just twirl it to adjust the brightness of LED lights 
Size:Dimension(L x W x H): Approx. 88 x 60 x 56mm(3.5 x 2.4 x 2.2 inch)
Color: Beige
Working Temperature: -20~60C 
 
Packing content:
1 PCS 12V-24V 8A Dimmer
 

SOT23 SOP10 MSOP10 Umax SOP23 to DIP10 Pinboard SMD To DIP Adapter Plate 0.5mm/0.95mm to 2.54mm DIP Pin PCB Board Convert
Description:
1.Name:SOP10 MSOP10 SOP23 conversion board
2.Pin Space:0.95mm/0.5mm
3.Size:12.7*10.16mm
Package included:
50 Pcs SOT23 SOP10 MSOP10 Umax SOP23 to DIP10 Pin board

Hall Current Sensor Module ACS712 5A model for uno
 
Description:
The current sensor chips: ACS712ELC-5A;
Pin 5V power supply, on-board power indicator;
The module can be measured plus or minus 5 amps, corresponding to the analog output of 100 mV / A;
There is no the detection current through, the output voltage is VCC / 2;
PCB board size: 31 (mm) x13 (mm);
 
Package Included
1 PCS ACS712 module

 
74HC595 Static Driving 2 Segment Digital Display Module Seamless Can Series 0.5-inch 2-bright Red
 

 
Description:
Interface:
VCC: positive
GND: Negative
SDI: Data
SCLK: shift clock
L0AD: Latch
 
Package Included:
1 Pcs 74HC595 Static Driving 2 Segment Digital Display Module
 

3D Prnter parts Mechanical Endstop without the wheel For Reprap ramps 1.4 3D printer With independent packing with High Quality
Description:
Good quality and brand new
Features Benefits:
Quality switching elements.
Customized high quality connection, using 22AWG wire, copper wire inside is very thick, can be resistant to current 2A, 300V voltage. An insulating layer over a wide range of temperatures, up to 80 degrees. Is the common connection of thin copper wire can not match. Not easy to pull off, plug it convenient, for ease of use, plug the other side to do the one, you can use the direct plug.
Connection description:
1) red line connecting VCC (ramps of )
2) Connect the black wire GND (ramps of -)
3) Green Line connection SIGNAL (ramps in s)
tips: Under normal circumstances, the system must be configured to at least three mechanical switches.
Pros: Easy to install, the more common styles.
Package included:
1 Pcs mechanical switch
1 Pcs Cable 3-pin 70CM

2130 Mono 2.5W Class D Audio Amplifier - PAM8302 module Mono 2.5W Class D Audio Amplifier - PAM8302
 
Description:
This super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC. Since the amp is a class D, its very efficient (over 90% efficient when driving an 8 speaker at over half a Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current but we could barely tell it got hot. There's even a volume trim pot so you can adjust the volume on the board down from the default 24dB gain. This board is a welcome upgrade to basic "LM386" amps!
 
The A and A- inputs of the amplifier go through 1.0uF capacitors, so they are fully 'differential' - if you don't have differential outputs, simply tie the Audio- pin  to ground. The output is "Bridge Tied" - that means the output pins connect directly to the speaker pins, no connection to ground. The output is a high frequency 250KHz square wave PWM that is then 'averaged out' by the speaker coil - the high frequencies are not heard. All the above means that you can't connect the output into another amplifier, it should drive the speakers directly.
 
Comes with a fully assembled and tested breakout board. We also include header to plug it into a breadboard and a 3.5mm screw-terminal blocks so you can easily attach/detach your speaker. You will be ready to rock in 15 minutes! Speaker is not included, use any 4 ohm or greater impedance speaker.
 
Output Power: 2.5W at 4, 10% THD, 1.5W at 8, 10% THD, with 5.5V Supply
50dB PSRR at 1KHz
Filterless design, with ferrite bead capacitors on output.
Fixed 24dB gain, onboard trim potentiometer for adjusting input volume.
Thermal and short-circuit/over-current
Low current draw: 4mA quiescent and 1uA in shutdown mode
 
Package included:
1 Pcs PAM8302 module

LM2596 LED Driver DC-DC Step-down Adjustable CC/CV Power Supply Module
Weight:13 g 
Color: as picture show
Size:46mmx23mmx10mm/1.81\"x0.91\"x0.39\"(inch) (approx)
 
Features:
1.Fixed turn the lamp current to 0.1 times the value of the constant current (charge when used to identify whether the battery is full);
2. Increased input reverse polarity protection diode;
3. Using dedicated reference IC, and high-precision sampling resistor, so that the constant current is more stable, (20 degrees to 100 degrees, the constant current 1A, when the temperature drift of less than 1% ).
Particularly suitable for LED driver
*High-power LED constant current drive
*Lithium battery charger (including ferroelectric)
*4V, 6V, 12V, 14V, 24V battery charger
*Nickel cadmium, nickel metal hydride battery pack charger
*Solar panels and wind turbines
 
Specifications:
*Module Properties: non-isolated constant current and voltage module
*Rectification: non-synchronous rectification
*Input voltage: 7V-35V
*Output voltage: 1.25V-30V
*Output current: adjustable maximum 3A
*Conversion efficiency: 92% (the highest)
*Switching frequency: 150KHz
*Output ripple: 50mV (max) 20M bandwidth
*Load Regulation: ± 0.5%
*Voltage Regulation: ± 2.5%
*Operating Temperature: -40 ° to 85 °
 
Battery use:
* Make sure of the voltage and current of the battery you need to charge
* Adjust the constant voltage potentiometer to make the output voltage same to the charge voltage
* Potentiometer Adjustment Direction: Clockwise (increase), counterclockwise (decrease)
*Use the multimeter in 10A current scale to measure output short-circuit current, and adjust the current potentiometer to make sure the output current to the expected charging current value
* The charge current of transfer lamp is default 0.1 times of the charging current (constant current value)
* Connected to the battery and try to charging (for previous 5 steps, module input terminal is connected to power source, output load is NOT connected to batteries).
 
LED Constant Current Driver Use:
* Make sure operating current and Max operating Voltage of the LED you need to drive.
* Adjust the constant voltage potentiometer to make sure the output Voltage is up to LED Max operating Voltage.
*Use the multimeter in 10A current scale to measure output short-circuit current, and adjust the current potentiometer. To make sure the output current to the expected LED operating current.
* Join LED, test (For the above 3 steps, module input terminal is connected to power source, output load is NOT connected to LED).
 
The scope of application:
Charging for lithium ion batteries: when the lithium ion battery voltage is low. If use the constant voltage charging directly. Due to pressure is too large, leading to the battery damage. So from the beginning to use the constant current charging. When charging to a certain, automatic switch back to the constant voltage charging.
 
Charging curve as shown below: red is current, blue is voltage.
 
Package Included:
1 Pcs LM2596 DC-DC Step-down Adjustable Power Supply Module Converter LED driver
 
 

Buzzer Module Passive Buzzer Module
Description:
1 module driven by S8550 triode
2 working voltage of 3.3 V to 5 V
3 sets of fixed bolt hole, convenient installation
4 small board PCB size: 3.3 cm X 1.3 cm
Module interface specification (3 wire system)
1 VCC external 3.3 V to 5 V voltage (which can be directly connected to 5 V microcontroller and 3.3 V microcontroller)
2 GND external GND
3 I/O external microcontroller IO port
Package Include:
1 Pcs Passive Buzzer Module
​

 
L7805 LM7805 Step Down Converter 7.5V-35V to 5V Regulator Power Supply Module
Description:
Board size : 5.7cm * 2.3cm
Input voltage : Input voltage polarity, AC and DC range : 7.5V - 20V
Output voltage 4.5V-5V
Maximum Output Current : 1.2A
 
Shipping Included:
1 Pcs L7805 Step Down module
 

MQ-6 LPG Gas Sensor Module Liquefied Propane Iso-butane Butane Combustible Gas Detection Sensor MQ6
 
Product Description:
Size: 32mm X 22mm X17mm 
The main chip: LM393, MQ-6 gas sensors
Operating voltage: DC 5 V
Has a signal output indication.
Dual signal output (analog output, and TTL level output)
TTL output valid signal is low. (Low-level signal when the output light can be directly connected to the microcontroller)
0 ~ 5V analog output voltage, the higher the concentration the higher the voltage.
For LPG, butane, propane has a good sensitivity.
Having a long life and reliable stability
Quick response and resume
 
Package included:
100% Brand New
1 PCS MQ-6 Module

Mini PAM8403 DC 5V 2 Channel USB Digital Audio Amplifier Board Module 2 * 3W Volume Control With Potentionmeter
Description
PAM8403 small mini 5 v digital power amplifier board (can be USB powered) (XY) board USES PAM8403 digital power amplifier chip, circuit is simple, reliable work.Working voltage of 2.5 V to 2.5 V, 3 wx2 maximum output, efficiency can achieve 90% above, can use computer USB 5 V power supply, is very suitable for battery and portable electronic products.Bat small size, and is equipped with switch, potentiometer, can follow one\\'s inclinations of the volume, and control the power switch to use and install is very flexible and convenient.Using devices all use the real thing, can be competent for long-term stability.
Specifications:
Operating voltage: 2.5 V to 2.5 V
Maximum output: 3 wx2 (5 v 4 o)
Board size: about 22 mm 30 mm wide/deep/high 16 mm excluding potentiometer handle bulge (dimension) boards are finished plate welding test, the above potentiometer is with switch, can control the volume and power switch, not more than 5.5 V, working voltage power supply positive and negative don\\'t wrong, otherwise the chip has the potential to damage.
Package Included
1 Pcs PAM8403 Amplifier Board

1 Pair MT60 Motor Plug Connector Set For RC Multicopter Quadcopter Airplane
Description
-Sealed Joint to make no vapor entrance
-Non-Slip Deisgn to make easier in removing and connecting plugs
-Clear Postitive & Negative Signal indicated
-MT60 3.5mm Motor Connector Set
-Metal Connector Diameter: 3.5mm (bullet type)
Package Included
1 Pair MT60 Motor Plug Connector