Egyéb elektromos berendezések és kellékek

 
16 Bits 16 X WS2812 WS2812B Module 5050 RGB LED Ring Lamp Light with Integrated Drivers
 
Description:
There is a single data line with a very timing-specific protocol.
Since the protocol is very sensitive to timing,
it requires a real-time microconroller such as an AVR, A rduino, PIC, mbed, etc.
It cannot be used with a Linux-based microcomputer or interpreted microcontroller
such as the netduino or Basic Stamp.
Features:
Chip: WS2812 (built-in LED)
LED:1pcs 5050 RGB full color highlighting
Voltage: 5V
Ports: Digital
Platform: Arduino microcontroller
Applications:
Full-color module, Full color soft lights a lamp strip.
LED decorative lighting, Indoor/outdoor LED video irregular screen.
Package Included:
1 Pcs WS2812 5050 RGB LED
 

 
DC 5V Low Noise Brushless Motor Pump120L/H Mini Micro Submersible Water Pump for Diy Kit
 
 
Description
DC Voltage: 2.5-6V
Maximum lift: 40-110cm / 15.75"-43.4"
Flow rate: 80-120L/H
Outside diameter of water outlet: 7.5mm / 0.3"
Inside diameter of water outlet: 5mm / 0.2"
Diameter: Approx. 24mm / 0.95"
Length: Approx. 45mm / 1.8"
Height: Approx. 30mm / 1.2"
Material: engineering plastic
Driving mode: brushless dc design, magnetic driving.
 
Package Included
1 Pcs Mini Water Pump

 
DC 5V Low Noise Brushless Motor Pump120L/H Mini Micro Submersible Water Pump for Diy Kit
 
 
Description
DC Voltage: 2.5-6V
Maximum lift: 40-110cm / 15.75"-43.4"
Flow rate: 80-120L/H
Outside diameter of water outlet: 7.5mm / 0.3"
Inside diameter of water outlet: 5mm / 0.2"
Diameter: Approx. 24mm / 0.95"
Length: Approx. 45mm / 1.8"
Height: Approx. 30mm / 1.2"
Material: engineering plastic
Driving mode: brushless dc design, magnetic driving.
 
Package Included
1 Pcs Mini Water Pump

 
20mm Fogger Mist Maker Ultrasonic Atomization Ceramic Disc Ring Sheet Atomizer Humidifier Accessories SR020
Description:
Product Name :20mm Ultrasonic Mist Maker Atomizing Transducer Ceramic Humidifier Accessories 
Dia : 20mm/0.79"
Color : As Picture Shown
Note:
Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon.
And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
Package included:
1 Pcs 20mm Ultrasonic Mist Maker Atomizing Transducer Ceramic Humidifier Accessories

 
HC-SR505 Mini Sensing Module for Arduino Body Sensing Mode Mini-body Sensor Switch
 
 
Description
HC-SR505 small body sensing module is based on infrared technology, automatic control products, high sensitivity, high reliability, ultra-small, ultra-low-voltage operation mode. Widely used in various auto-sensing of electrical equipment, especially battery-powered automatic control products.
Technical parameters:
Operating Voltage Range: DC4.5-20V
Static current: <60uA
Output level: High 3.3V / Low 0V
Trigger: repeatable trigger (default)
Delay time: Default 8S -30% (can be customized range of a few tenths - tens of minutes)
PCB Dimensions: 10 * 23mm
Induction angle: <100 degree cone angle
Induction distance: 3 meters
Working temperature: -20 - 80 degrees
Sensor Lens Dimensions: Diameter: 10mm (default)
Features:
Automatic induction: to enter the sensing range of the output is high, people leave the sensor range automatically delay off high, output low. Ultra-small size.
Repeatable trigger: the sensor output high, the delay period, if there is human activity in its sensing range, the output will remain high until people leave after the high variable delay lOW (automatically extended sensor module detects the human body after every activity a delay period, and the last time an event is the starting point of the delay time).
Wide operating voltage range: the default operating voltage DC4.5V-20V.
Micropower: quiescent current <50 microamps, especially for battery-powered automatic control products.
Output high signal: easy docking and all kinds of circuits.
Applications:
Body induction lamps
Body sensors toys
Security Products
Industrial automation and control
Auto-sensing of electrical equipment
Battery-powered automatic control
 
Package Included
1 Pcs HC-SR505 Small Body Sensing Module

XT150 Connector Adapter Male Female Plug 6mm Gold Banana Bullet Plug
Description:
1.Precision molds processing
2.Stepped card slot design, trapezoidal merging and split design make the plug disassembly more convenient
3.Non-slip design at housing tail 
4.Groove slot design of tail can contain 8-10awg silicone-line
5.Super inflaming retarding PA, high temperature resistance, make a longer life
6.6.0mm lengthened and thicked gold plated banana plug, can be sustained a constant current 100A, 120A high current peak for 10 seconds
7.Housing can be merged and splited at any time, can be inserted and pulled separately, reduce the obstruction when inserted or pulled meanwhile, humanized design
 
 
Package included:
2 Pcs XT150 Male connector
2 Pcs XT150 Female Connector
 

3S 30A Li-ion Lithium Battery 18650 Charger Protection Board 10.8V 12.6V
 
 
 
Description:
100% Brand New
Module:3S Li-ion Lithium Battery Protection Board
overcharge detection voltage :4.25±0.025V
overcharge Lift the voltage:4.15±0.05V
over discharge detection voltage :2.50±0.08V
over discharge Lift the voltage:3.00±0.1V
overcurrent current:20-30A
working current:15A(Natural cooling 10.A, add heat sink 15A, the maximum instantaneous current 30A)
Remove protection condition automatic recovery, without activation
Size:50mm*22mm*4mm
Protections:
Short circuit protection
Overcharge protection
Over-discharge protection
Overcurrent protection
​  operating temperature:-40-85c
 
Package included:
1 Pcs 3S 30A High Current Li-ion Lithium Battery 18650 Charger Protection Board 10.8V 11.1V 12.6V
 

 
Splicable Battery Slot /21700/18650 Battery Case/solder-free Lithium Battery Box Holder Electronic High-current Copper Pillar
 
      
 
Description
1. Splicable battery slot products are suitable for cylindrical batteries of 21700
2. Connect the positive and negative poles to the copper column accessories
3. The product is used for DIY, but it is not recommended for battery packs with vibration sources.
4. Used for 21700 battery, compatible with 18650 flat-head lithium battery, but need to replace the positive and negative accessories.
5,When you need to achieve parallel or series connection, please purchase the pure copper connection piece separately!
How to calculate the number of connected pieces (for example):
How many connecting pieces do I need to shoot for 6 sets of battery boxes?
6 sections in series: 6-1=5 (5 pieces required)
6 sections in parallel: (6-1)*2=10 (10 pieces required)
 
Package Included
1 Pcs 21700 Battery Holder

 
Splicable Battery Slot /21700/18650 Battery Case/solder-free Lithium Battery Box Holder Electronic High-current Copper Pillar
 
      
 
Description
1. Splicable battery slot products are suitable for cylindrical batteries of 21700
2. Connect the positive and negative poles to the copper column accessories
3. The product is used for DIY, but it is not recommended for battery packs with vibration sources.
4. Used for 21700 battery, compatible with 18650 flat-head lithium battery, but need to replace the positive and negative accessories.
5,When you need to achieve parallel or series connection, please purchase the pure copper connection piece separately!
How to calculate the number of connected pieces (for example):
How many connecting pieces do I need to shoot for 6 sets of battery boxes?
6 sections in series: 6-1=5 (5 pieces required)
6 sections in parallel: (6-1)*2=10 (10 pieces required)
 
Package Included
1 Pcs 21700 Battery Holder

 
Splicable Battery Slot /21700/18650 Battery Case/solder-free Lithium Battery Box Holder Electronic High-current Copper Pillar
 
      
 
Description
1. Splicable battery slot products are suitable for cylindrical batteries of 21700
2. Connect the positive and negative poles to the copper column accessories
3. The product is used for DIY, but it is not recommended for battery packs with vibration sources.
4. Used for 21700 battery, compatible with 18650 flat-head lithium battery, but need to replace the positive and negative accessories.
5,When you need to achieve parallel or series connection, please purchase the pure copper connection piece separately!
How to calculate the number of connected pieces (for example):
How many connecting pieces do I need to shoot for 6 sets of battery boxes?
6 sections in series: 6-1=5 (5 pieces required)
6 sections in parallel: (6-1)*2=10 (10 pieces required)
 
Package Included
1 Pcs 21700 Battery Holder

 
Splicable Battery Slot /21700/18650 Battery Case/solder-free Lithium Battery Box Holder Electronic High-current Copper Pillar
 
      
 
Description
1. Splicable battery slot products are suitable for cylindrical batteries of 21700
2. Connect the positive and negative poles to the copper column accessories
3. The product is used for DIY, but it is not recommended for battery packs with vibration sources.
4. Used for 21700 battery, compatible with 18650 flat-head lithium battery, but need to replace the positive and negative accessories.
5,When you need to achieve parallel or series connection, please purchase the pure copper connection piece separately!
How to calculate the number of connected pieces (for example):
How many connecting pieces do I need to shoot for 6 sets of battery boxes?
6 sections in series: 6-1=5 (5 pieces required)
6 sections in parallel: (6-1)*2=10 (10 pieces required)
 
Package Included
1 Pcs 21700 Battery Holder

 
Hot SMD Chip Component LCR Testing Tool Multimeter Tester Meter Pen Probe Lead Tweezers For FLUKE For Vichy
 
 
Description:
1. 100% Brand new and high quality
2. Up for sale is a brand new meter clip probe for SMD components measure
3. This clip probe is suitable for resistor, capacitor or other SMD components
4. It is one of the convenient tool that you need for your electronic work
5. Maximum voltage: 250V
6. Open clip distance: 10mm
7. High quality shielded coaxial cable
8. Universal multi-meter plug
9. Ease of use
10. Protective caps for probe tips
11. 15mm plug insertion depth
12. Comfort grip probes with anti-slip design
13. Color: Black
14. Size: Approx. 15 x 1.8 x 1.5cm
 
Package Included:
1 Pcs SMD testing tool
 

 
ESP01 Programmer Adapter UART GPIO0 ESP-01 Adaptaterr ESP8266 CH340G USB To ESP8266 Serial Wireless Wifi Developent Board Module
 
 
Description
This moduel is an USB adpater /
programmer for ESP8266 moduels of type ESP-01.
It is conveniently fitted with a 2x4P
2.54mm female header to plug the ESP01
(according to illustration picture 2)
and configure or run it right away.
A large 1000μF cap will help getting a steady 5.0V VCC
from the USb bus and and jumper (on the right of the 2x4P header)(we don't offer any jumper !!!!)
will help configuring the GPIO0 line according needs.
The module is based on the USB-UART bridget CH340
from WCH which is compatible with all platforms.
 
Note : for an usage with rduino ESP8266 platform and for rduino IDE
it is necessary to switch manually the GPIO0 state for working mode,
in order to get a fully automatic upload it is most likely possible,
for a very limited effort, to assign an unused control line
from CH340 to driver the GPIO0 line
(probably at the cost of a necessary logic inversion),
refer to the CH340 datasheet and
most important to the NodeMCU V0.9
which use the CH340 and already implements this solution,
the schematic is open source and easily available.
 
Package Included
1 Pcs ESP-01 WIFI Module / Adapter Board

 
ESP01 Programmer Adapter UART GPIO0 ESP-01 Adaptaterr ESP8266 CH340G USB To ESP8266 Serial Wireless Wifi Developent Board Module
 
 
Description
This moduel is an USB adpater /
programmer for ESP8266 moduels of type ESP-01.
It is conveniently fitted with a 2x4P
2.54mm female header to plug the ESP01
(according to illustration picture 2)
and configure or run it right away.
A large 1000μF cap will help getting a steady 5.0V VCC
from the USb bus and and jumper (on the right of the 2x4P header)(we don't offer any jumper !!!!)
will help configuring the GPIO0 line according needs.
The module is based on the USB-UART bridget CH340
from WCH which is compatible with all platforms.
 
Note : for an usage with rduino ESP8266 platform and for rduino IDE
it is necessary to switch manually the GPIO0 state for working mode,
in order to get a fully automatic upload it is most likely possible,
for a very limited effort, to assign an unused control line
from CH340 to driver the GPIO0 line
(probably at the cost of a necessary logic inversion),
refer to the CH340 datasheet and
most important to the NodeMCU V0.9
which use the CH340 and already implements this solution,
the schematic is open source and easily available.
 
Package Included
1 Pcs ESP-01 WIFI Module / Adapter Board

 
 
6*AA 9V Plastic Battery Double Side Spring Box Back-to-back With 9V Buckle AA Holder Battery Holder Box Battery Case
 
 
Description
100% brand new and high quality.
Made of ABS material, lightweight,convenient to carry.
This battery box holder with wires,suitable for 6x AA batteries.
With spring clip design,you can easily put the battery in it.
Material:ABS Metal
Color:Black
Specifications:
Product Name:Battery Box
Product Type:6*AA back to the strap 9v male and female deduction
9V buckle Material:brass nickel plate
Weight:About 15.63 grams
Size:58.03*47.33*29.87mm
 
Package Included
1 Pcs AA Battery Storage Holder

 
LM2596HV 5V DC-DC Step Down Buck Converter Module 9V 12V 24V 36V 48V to 5V 3A USB Charger Module
Description:
Module nature: non-isolated step-down module
Main chip: LM2596HV
Input voltage: 7-56V limit 56V, please leave margin
Output voltage: fixed 5V
Output current: maximum 3A, the best work within 2.5A long
Output power: up to 15W (output current calculation formula: 15 / output voltage = output current)
Conversion efficiency: up to 92% (the higher the output voltage, the higher the efficiency)
Static power consumption is only about 6mA.
Operating temperature: Industrial grade (-40 ° C to 85 ° C)
Input: IN then positive, IN - connected negative
Module size: 40 * 23 * 11.5mm (including USB length of 48mm)
 
Note: As part of the manufacturers for their own interests, MP3MP4 mobile phones and other products will be added to identify the resistance, so buyers in the purchase of this module, in addition to IPHONE, Nokia size round head does not need to add additional identification adapter, There are a small number of mobile phones have identified problems, such cases suggest that customers buy another USB cable, and all kinds of adapter with identification of the adapter, the vast majority of mobile phones, MP3, MP4, PSP and other charges.
Package included:
1 Pcs LM2596HV 5V DC-DC Step Down Buck Converter Module
 

USB power boost line DC 5V to DC 9V/12V Step UP Module USB Converter Adapter Cable 2.1x5.5mm Plug
Description:
Input voltage: 5V
Output voltage: 12V700mA
Length: 1M
Weight: 30g
DC Plug Specifications:
Outer diameter: 5.5mm
Inner diameter: 2.1 mm
Internal positive pole
External negative pole
Shipping list:
1 Pcs USB power boost line

USB power boost line DC 5V to DC 9V/12V Step UP Module USB Converter Adapter Cable 2.1x5.5mm Plug
Description:
Input voltage: 5V
Output voltage: 12V700mA
Length: 1M
Weight: 30g
DC Plug Specifications:
Outer diameter: 5.5mm
Inner diameter: 2.1 mm
Internal positive pole
External negative pole
Shipping list:
1 Pcs USB power boost line

USB power boost line DC 5V to DC 9V/12V Step UP Module USB Converter Adapter Cable 2.1x5.5mm Plug
Description:
Input voltage: 5V
Output voltage: 12V700mA
Length: 1M
Weight: 30g
DC Plug Specifications:
Outer diameter: 5.5mm
Inner diameter: 2.1 mm
Internal positive pole
External negative pole
Shipping list:
1 Pcs USB power boost line

Bluetooth Audio Receiver Board Bluetooth 5.0 MP3 Lossless Decoder Board Wireless Stereo Music Module 3.7 / 5V DIY
 
 
Description
The module stereo output, built-in Bluetooth antenna, simple structure, the power supply voltage is 5V /3.7V version selection, active speakers increase Bluetooth connection function.
The module stereo output, built-in Bluetooth antenna, simple structure, the power supply voltage is 5V /3.7V version selection, active speakers increase Bluetooth connection function. 7PIN output interface for spacing 2.54 through hole, 7PIN output interface for: power, ground, left, right, mute, LED status indication, reserved port. Among them, the LED status port is connected with a 100 ohm resistor in series. The LED indicates that the Bluetooth is not connected and the flash is fast. After Bluetooth connection is successful, it is slow flashing. The volume is: 25mm, X, 20mm, X, 3mm.
 
Package Included
1 Pcs Bluetooth Audio Receiver Board

Bluetooth Audio Receiver Board Bluetooth 5.0 MP3 Lossless Decoder Board Wireless Stereo Music Module 3.7 / 5V DIY
 
 
Description
The module stereo output, built-in Bluetooth antenna, simple structure, the power supply voltage is 5V /3.7V version selection, active speakers increase Bluetooth connection function.
The module stereo output, built-in Bluetooth antenna, simple structure, the power supply voltage is 5V /3.7V version selection, active speakers increase Bluetooth connection function. 7PIN output interface for spacing 2.54 through hole, 7PIN output interface for: power, ground, left, right, mute, LED status indication, reserved port. Among them, the LED status port is connected with a 100 ohm resistor in series. The LED indicates that the Bluetooth is not connected and the flash is fast. After Bluetooth connection is successful, it is slow flashing. The volume is: 25mm, X, 20mm, X, 3mm.
 
Package Included
1 Pcs Bluetooth Audio Receiver Board

 
I2C IIC 8 Channel Logic Level Converter Module Bi-Directional Module For Uno Step Up 3.3V To 5V
 
 
Description:
100% brand new and high quality 
If you\'ve ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time. This level converter also works with 2.8V and 1.8V devices. What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side
 
The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the \'HV\' pin, low voltage (3.3V for example) to \'LV\', and ground from the system to the \'GND\' pin 
Compatible with 5-3V system 
VIN connected 5V system power supply 
5A connected 5V system 
5B connected 5V system 
GND connected 5V system GND 
3V3 connected 3V system power supply 
3A connected 3V system 
3B connected 3V system 
GND connected 3V system GND 
Size: 28 x 19mm / 1.1 x 0.74 inch
 
Package Included:
1 Pcs 8 Channel IIC I2C Logic Level Converter Module
 

 
 
LM2662 Positive To Negative Voltage Conversion Board 1.5-5.5V Positive Voltage into Negative Voltage Converter Module
 
 
 
Description:
LM2662 adopts high precision voltage conversion chip, and it can convert the 1. 5V-5.5V positive voltage into corresponding negative voltage
Input Voltage: 1.5-5 5V
Crystal oscillator frequency adjustable
Output Resistance: 2.5 ohm typical output
Working temperature:-25-85c
 
Package included:
1 Pcs LM2662 Positive To Negative Voltage Conversion Board
 
 

DC-DC Step Down Buck Converter Charging Module USB 6-32V 9V 12V 24V to QC3.0 QC2.0 Fast Quick Charger 3V 5V 12V Circuit Board
​
Description:
nput voltage range: 6V to 32V
Output voltage: The default is 5V. After the fast charge is triggered, it is automatically adjusted between 3 and 12V.
Output Power. 24W (5V, 3.4A, 9V, 2.5A, 12V, 2A, etc.)
Output voltage wired compensation
Conversion efficiency: 90% to 97%
Supports multiple fast charging protocols
Input overvoltage, undervoltage protection
Input over-current protection
Output overcurrent and short circuit protection
Over temperature protection
 
Support fast charging protocol
for BC1.2, iPhone, Samsung agreement
for Qualcomm QC2.O and QC3.O
MTKPEI.1/PE2.O
Fast Charge Protocol FCP
Star Fast Charge Protocol AFC
Spreadtrum Fast Charge Agreement SFCP
 
Applications
Solar panel to mobile phone charging
Car charging retrofit
Driving recorder power supply
Home power conversion
Package included:
1 Pcs DC-DC Step Down Buck Converter Charging Module

 
3.7V 9V 5V 2A Adjustable Step Up 18650 Lithium Battery Charging Discharge Integrated Module
 

 
Description:
Adjustable output voltage4.3-27V(4.3Vthe above27Vthe following Arbitrary voltage Can output Adjust yourself Counterclockwise boost)
Charging voltage4.2Vrecharging current maximum1A
Output reference maximum current5V 1.4A, 9V 0.8A, 12V 0.6A
Have Overshoot protection
Size3.3X2.3X0.9
Can be used for multimeters Modified lithium battery charging 
 
Package Included:
1 Pcs Boost module
 

MEGA Sensor Shield V1.0/V2.0 Dedicated Sensor Expansion Board for Uno Mega 2560 R3
Description:
Uno is an open-source physical computing platform based on a simple i/o board and a development
environment that implements the Processing/Wiring language.
Uno can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP).
The open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux)
Sensor Shield allows you to connect to various modules like sensors, servos, relays, buttons, potentiometers.
Mega Sensor Shield V1.0 pinout all of the Uno digital and analog interface.
Support IIC interface.
Support 32 road Servo Motor Drive Shield interface.
Support bluetooth module communication interface.
Support SD card module communication interface.
Support APC220 wireless rf modules communication interface.
Support RB URF ultrasonic sensors interface.
Support LCD serial and parallel interface.
Support Kinds of interface and can be fully compatibled with Uno Mega.
 
Package Includes:
1 Pcs MEGA Sensor Shield V1.0/V2.0 Dedicated Sensor Expansion Board
 

TDA1308 Silicon Microphone Amplifier Module Silicon Microphone Amplifier Microphone Head with Pre-amplification High Sensitivity
 
 
 
Description
It adopts Knowles high-sensitivity silicon microphone pre-amplifier circuit design, with an output of about 30mw, which can directly drive ordinary 32 ohm headphones.
Board size: 18mm*15mm
Working voltage: 3v-5v DC
R5: Magnification adjustment resistor. The resistance value can be 4.7k-100k (the plug-in pad is reserved next to the chip resistor. If there is no chip resistor or the welding technology is not good, the plug-in resistor can be used.) The resistance value is higher. The higher the gain, the higher the gain.
R6: Microphone sensitivity adjustment resistance. The default is the highest sensitivity (resistance value is 0 ohms), and the resistance can be selected from 0 ohms to 10K (the plug-in pad is reserved next to the chip resistor, if there is no chip resistor or welding technology No good, plug-in resistors can be used.)
, the larger the resistance value, the lower the sensitivity.
 
Package Included
1 Pcs TDA1308 Silicon Microphone Amplifier Module
 

High Quality 1 18650 Battery Holder THM with Pins 18650 Battery Storage Box TBH-18650-1C-THM
 
Description
100% Brand New and High Quality
Its small size, moderate capacity, in many small appliances and digital products widely used.
Specifications:
Item:1*1slot 18650 Battery Storage Holder
Support Model :18650 Battery
Shell material: ABS fire, flame retardant, high temperature, color diversity and other materials for choice.
Metal spring: carbon steel nickel plating by NCAA salt spray test, stainless steel spring.
Size: 77.1MM*20.65MM*14.90MM
 
Package Included
1 Pcs 18650 Battery Holder
 

 
 
TL494 SG3525 PWM Controller Module Adjustable Frequency Control Board Module Diy Electronic
 
 
Description:
1. onboard SG3525A PWM control chip
2. on-board 78M05 regulator chip, providing a reliable reference voltage
3. onboard two precision adjustable resistors, R3 controls the duty cycle, R4 control frequency
4. on-board power indicator
5. the working voltage: 8 ~ 12V
6. Frequency Range  100HZ-100KHZ adjustable
7. Duty Cycle :0 - 100% adjustable
8. voltage : 5v
9. board size: 30.8 (mm) x18 (mm)
 
Package Included:
1 Pcs DC 5V 12V SG3525 PWM Controller Module
 
 

 
 
TL494 SG3525 PWM Controller Module Adjustable Frequency Control Board Module Diy Electronic
 
 
Description:
1. onboard SG3525A PWM control chip
2. on-board 78M05 regulator chip, providing a reliable reference voltage
3. onboard two precision adjustable resistors, R3 controls the duty cycle, R4 control frequency
4. on-board power indicator
5. the working voltage: 8 ~ 12V
6. Frequency Range  100HZ-100KHZ adjustable
7. Duty Cycle :0 - 100% adjustable
8. voltage : 5v
9. board size: 30.8 (mm) x18 (mm)
 
Package Included:
1 Pcs DC 5V 12V SG3525 PWM Controller Module
 
 

 
DC New 1.8V 3V 5V 6V 12V 2A Low Voltage Motor Speed Controller PWM 1803B (Potentiometer with switch)
Description:
100% brand new and high quality
This Brand New DC Motor Speed Controller allows controlling the direction of a DC the motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully the product adjust from 0% -100% .
With a self-recovery fuse 2A and a Power-On LED light.
Enable to provide a continuous current of 2A to your DC motor or other DC load.
 
Specification:
Input supply voltage:1.8V-15VDC
The max output power:30W
The max continuous output current :2A
Duty Cycle adjustable: 0% -100%
Size:32*32*15mm
Quantity:1PC
 
Package includes:
1 x Motor Speed Controller
 
Special reminder:
DC motor speed regulator DC power supply,
Must not be directly connected to household 220V ac,
Otherwise the consequences of damage!
This is a 2A maximum current regulator, continuous current greater than 0.5A, 775 motor, children's motor is not moving, we do not buy the wrong. It is not recommended that the power supply is greater than 12V, such as 12V lead acid battery, which may cause damage to the governor.

3 x AAA Battery Storage Cover Box Plastic Case Holder with ON/OFF Switch & Wire Leads for 3 pcs AAA Batteries Black Wholesale
 

 
Description:
Brand New and high quality
With cover
With ON/OFF Switch on the back of the Box
Light and durable Hard Plastic.
Compatible with: 3 PCS AAA Batteries (Batteries are not included.)
 
Specifications:
Color: Black
Size: 60mm x 35mm x 15mm (LWH)
Material: Hard Plastic
Net Weight: 20g
 
Package includes:
1 Pcs Battery Box Holder (Batteries are not included.)

125Khz RFID Reader EM4100 USB Proximity Sensor Smart Card Reader no drive issuing device EM ID USB for Access Control
Description:
1.Diagnostic Power LED,waterproof,great small compact design
2.Built in operating buzzer,Easy usage,plug and play
 
Specification:
1.Support :all 125Khz RFID EM4100 Card/Tag 
2.Frequency: 125Khz
3.Default Read first 10 digits Decimal RFID card
4.USB cable connection to PC (Plug and Play, Driverless for Windows 2000, 2003, XP,Windows7 etc)
5.Communication speed: 106Kbit/s
6.Power: DC 5V( /-5% )
7.Reading distance: 5-8cm
8.Interface: USB (Powered from USB, does not require any external power supply)
9.Operating temperature: -10 degree~ 70 degree
10.Storage temperature: -20 degree ~ 80 degree
11.Size: ( L*W*H ) 9.8x6.3x1cm
12.Weight: 70g. with USB Cable: 90g
13.Color: black ( The same as the web photo )
14.Material: Hard Plastic
Application:
Widely used in access control entrance guard, consumption, hotel lock, water meter, electricity meter and gas meter and a series of ID card management application system.
Package Included:
1 Pcs Id card reader
1 Pcs USB cable

Micro SD Card Shield For WeMos D1 Mini TF WiFi ESP8266 Compatible SD Wireless Module For uno For WeMos D1 Mini
Description:
Model Number: Micro SD Shield
Install Style: Plug-in
Supporting the D1 MINI
The Uno compatible, using Uno IDE for programming
11 the XI/O pins
1 XADC pin (0-3.3V)
Support the OTA online
 
Package included:
1 Pcs Micro SD Shield
 

 
XT90 Battery Connector Set 4.5mm Male Female Gold Plated Banana Plug
 

 
Description:
Protected to avoid shorting and reverse polarity
Half open end, easier for welding.
Suit for 90-120A current application.
Metal connector size: 4.5mm
 
Package included:
1 Pcs XT90 Male connector
1 Pcs XT90 Female connector
 

0.9V-5V to 5V DC-DC USB Voltage Converter Step Up Booster Power Supply ModuleDescription:
1, the onboard subminiature PFM control DC/DC boost controller chip
2, any input 0.9 V ~ 5 V dc voltage, stable output 5 V dc voltage
3, the onboard USB female, can be directly to the USB interface equipment power supply
4, the onboard the input voltage indicator light
5, PCB size: 34 x16.2 (mm) (mm)
 
Package Included
5 Pcs 5 v booster module

 
10CM DC 9V 5.5*2.1mm Battery Button Power Plug For Uno
 

 
Description
Battery Lead: 10CM 9V 5.5*2.1mm Battery Button Power Plug
 
Package Included
1 Pcs 10CM DC 9V 5.5*2.1mm Battery Button Power Plug

4 Pack AA Battery Case Box 4*AA Battery Holder With 9V Male And Female
Description
100% brand new and high quality.
Made of PP material, lightweight,convenient to carry.
This battery box holder ,suitable for 4 x AA batteries.
With spring clip design,you can easily put the battery in it.
Material:PP Metal
Color:Black
Specification
Item Type:4*AA Side By Side 6V Battery Box
Material:PP Soft Plastic
Spring:Steel Nickel
Rivet:Steel Nickel
External Way:9V Positive& Negative Buckle
Size:62.5x56.5x15mm
Package Included
1 Pcs 4*AA Battery Box Buckle

If you need a propeller, please click on the picture
 
 
3.7V DC Micro Motor 614 High Speed Brushless DC Motor for DIY drones Toys Accessories model airplane
 
 
Description
Voltage:4.2V
Current: 0.12A (Test with a small propeller)
Speed: 46500RPM
Speed: 3.7V: 40000RPM
Motor diameter: 6MM
Motor length: 14MM
Output shaft diameter: 0.8MM
Output shaft length: 2.5MM
Weight: 2g
Tailing Cable Length: about 45mm. 
 
Package Included
2 Pcs 614 Motor

Ultrasonic Module HC-SR04 Distance Measuring Transducer Sensor for Arduino Ultrasonic Wave Detector Ranging Module
 
 
 
Description
Module main technical parameters:
1.Working Voltage : 5V(DC)
2.Static current: Less than 2mA.
3.Output signal: Electric frequency signal, high level 5V, low level 0V.
4.Sensor angle: Not more than 15 degrees.
5.Detection distance: 2cm-450cm.
6.High precision: Up to 0.3cm
7.Input trigger signal: 10us TTL impulse
8.Echo signal : output TTL PWL signal
Mode of connection:
1.VCC
2.trig(T)
3.echo(R)
4.GND
Use method:
Supply module with 5V, the output will be 5V while obstacle in range, or 0V if not.The out pin of this module is used as a switching output when anti-theft module, and without the feet when ranging modules.
Note : the module should be inserted in the circuit before been power, which avoid producing high level of misoperation;if not, then power again.
Module Working Principle:
1.Adopt IO trigger through supplying at least 10us sequence of high level signal.
2.The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal.
3.If there is signals returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving. Test distance =(high level time * sound velocity (340M/S) / 2.
Note : This module is not suitable to connect with electric power, if you need to connect this module with electronic power,then let the GND terminal of this module to be connected first,otherwise, it will affect the normal work of the module
 
Package Included
1 Pcs HC-SR04 Ultrasonic Module

Ultrasonic Module HC-SR04 Distance Measuring Transducer Sensor for Arduino Ultrasonic Wave Detector Ranging Module
 
 
 
Description
Module main technical parameters:
1.Working Voltage : 5V(DC)
2.Static current: Less than 2mA.
3.Output signal: Electric frequency signal, high level 5V, low level 0V.
4.Sensor angle: Not more than 15 degrees.
5.Detection distance: 2cm-450cm.
6.High precision: Up to 0.3cm
7.Input trigger signal: 10us TTL impulse
8.Echo signal : output TTL PWL signal
Mode of connection:
1.VCC
2.trig(T)
3.echo(R)
4.GND
Use method:
Supply module with 5V, the output will be 5V while obstacle in range, or 0V if not.The out pin of this module is used as a switching output when anti-theft module, and without the feet when ranging modules.
Note : the module should be inserted in the circuit before been power, which avoid producing high level of misoperation;if not, then power again.
Module Working Principle:
1.Adopt IO trigger through supplying at least 10us sequence of high level signal.
2.The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal.
3.If there is signals returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving. Test distance =(high level time * sound velocity (340M/S) / 2.
Note : This module is not suitable to connect with electric power, if you need to connect this module with electronic power,then let the GND terminal of this module to be connected first,otherwise, it will affect the normal work of the module
 
Package Included
1 Pcs HC-SR04 Ultrasonic Module

 
10A DC-DC 4-32V to 1.2-32V Step Down Module Solar Charger Constant Voltage Current Adjustable Buck Converter LED Driver
 
Description
Synchronous Rectification Adjustable
Module properties: non-isolated module (BUCK)
Input Voltage: 4-30V (limit 36V)
Output Voltage: 1.2-30V (adjustable,default output 5V)
Minimum Voltage Difference: 1V
Output Current: 0-10A
Operating temperature: -40°c to 85°c
Working frequency: 150KHz
Conversion efficiency: up to 98%
Installation: 4x 3mm screws
Wiring: Terminals, Needn't solder, V-IN input, V-OUT output
Cutting size: 60mmx26mm
Have operating indicator
 
Protection function:
Short circuit protection: YES ( limit current 13A)
Over-temperature protection: YES (Over-temperature auto reduces the output current)
Input reverse polarity protection: None (If need please install diode at input port )
 
Some Application:
Voltage convert:12 to 3.3V; 12V to 5V; 24 to 5V; 24V to 12V
Batteries Buck
Power Supply Transformers
DIY adjustable voltage regulated power supply
24V Car Laptop power supply
Car LED power supply
Industrial equipment Voltage convert,etc
 
Package Included
1 Pcs DC/DC Buck Converter
 

2A 5V Charge Discharge Integrated 3.7V 4.2V Lithium Battery Boost Mobile Power Protection Diy Electronic PCB Board Module
 
Description
Charging voltage: DC 4.5V-5.5V (recommended DC 5V)
Charging current : 0-2.1A
Charging quiescent current: 100uA
Full voltage: 4.2V -1% .
Discharge current: 0-3.5A;
Discharge quiescent current: 50uA
Discharge efficiency: 96% maximum
Output voltage: 5V
Output current: 0-2.1A;
Ambient temperature: -20° to 85°
Module with lithium battery protection function (for lithium battery without
protection, with protection board)
Overcurrent protection (OCP)
Overvoltage protection (OVP)
Short circuit protection (SCP)
Over temperature protection (OTP)
Charge and discharge power level 4 interval indication
 
Package Included
1 Pcs  5V2A Charging Board
 

Adjustment Steering Gear Tester CCPM 3-Mode ESC Servo Motor for RC Helicopters 
Features: 
The device can be used as a signal generator for electric speed controller (ESC), then you can test your motor system without using a transmitter and receiver. 
It can connect 1-3 servos simultaneously and test such as 1-3 servos consistency and so on. 
You can also connect 1-3 ESC to test and compare their reaction time respectively. 
It can connect 3 servos of the CCPM helicopters and select servos. 
It can also connect the servo of airplanes install the steering-box and adjust planes by using such as the neutral mode and so on. 
There are 3 modes to check servos or ESC: 
Manual mode: turn the knob with different speed, check the reaction time. 
Neutral mode: make the servo go back to the neutral point. 
Automatic "window wiper" mode: make the servo swing like a window wipers in the biggest angle. 
Specification: 
-Type: CCPM Servo Tester, ESC or Servo tester 
-Output: ≤15mA (5.0) 
-Voltage Consumption: DC4.8-6V 
-Output Signal: 1.5ms±0.5ms 
-Size: 48 x 42 x 17mm/1.89'' x 1.65 x 0.67''(Approx.) 
-Color: Blue 
Package Includes: 
1 Pcs Servo Tester

 
1*18350 Battery Holder Smd Smt Batteries Case Storage Box With Bronze Pins 1 Slot 1*18350 Rechargeable Battery Shell
 
 
Description
Battery model: 18350 battery
Number of batteries: 1
Material: Nylon, phosphor bronze
Color: Black UL-94V0
Executive Standard: RoHS
 
Package Included
1 Pcs 18350 Battery Holder SMD SMT

18650 Battery Holder Case DIY Lithium Battery Box Battery Holder With Pin For 3 * 18650 (3.7-11.1V)
 
 
Description:
Specification:
Material:ABS
Color:Black
Original Box:NO
Size: Approx.78mm *60mm * 21.5mm (excluding the lead part)
Weight:Approx.20g
Pin: length Approx.3.5mm, longitudinal Spacing:Approx.72.5mm (both edge-to-edge spacing)
Mounting holes: Aperture Approx.3mm, longitudinal spacing Approx.55mm (Pitch is the distance center to center of aperture)
 
Instructions for use: 
3*18650 battery, in parallel or in series to achieve 3.7-11.1V
 
Attention: Size may be slight inaccuracy due to different batches of the products, or hand measurement;
Color may be little different due to monitors. Please take real product as standard, thanks for your understanding!   
 
Package Included:
1 Pcs 18650 Battery Storage Box Holder with Pin