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Smart Eletronics Universal Wireless Charging PCBA Coil Charging Pcb Circuit Board Qi Wireless charger receiver module

Universal Wireless Charging PCBA Coil Charging Pcb Circuit Board Qi Wireless charger receiver module
Smart Electronics TP4056 18650 lithium battery module 3.7V 3.6V 4.2V lithium battery charging board 1A overvoltage protection

TP4056 18650 lithium battery module 3.7V 3.6V 4.2V lithium battery charging board 1A overvoltage protection
Smart Electronics HC-05 master-slave integrated BlE module DIY wireless serial port transparent electronic module BLE

HC-05 master-slave integrated bluetooth module DIY wireless serial port transparent electronic module BLE
16-Channel 12-bit PWM/Servo Driver - I2C interface - PCA9685 DIY Servo Shield Module
TPA3118 Mono Digital Amplifier Module Board High Sound Quality 60W
High Power Board Automatic Switching Battery Power XH-M350 Battery Emergency Switch Module 12v150w
Smart Electronics 3 coil 20W high-power wireless charging module 12V wireless fast charging board

3 coil 20W high-power wireless charging module 12V wireless fast charging board
Smart Electronics FM Transmitter Wireless Microphone Surveillance Frequency Board Module For Arduino Adjustable Capacitor DC 800M 85-115MHz

FM Transmitter Wireless Microphone Surveillance Frequency Board Module For Arduino Adjustable Capacitor DC 800M 85-115MHz
Smart Electronics DC 5V & DC12V ESP8266 WIFI 4-Channel Relay Module IoT Wireless Transmitter

DC 5V & DC12V ESP8266 WIFI 4-Channel Relay Module IoT Wireless Transmitter

ESP8266 WIFI 4-Channel Relay Module is 4 channel WIFI relay module carried a ESP8266 WIFI module and mature 8 bit MCU, with Professional switching power supply circuit.It could control the relay by Android phone APP within the local area network (LAN).It is easy to set .
RS422 to TTL/UART/MCU Serial Port Signal Mutual Module with Over-Voltage Over-Current Protection-3.3V

VCC: + 3.3V

TXD : The module's TTL (UART) to send, connected to the microcontroller's RXD receiver pin;

RXD : The module's TTL (UART) receiver, connected to the microcontroller TXD send pin;

GND : The module ground wire (this wire must be connected with the ground wire of microcontroller system);
XL 6009 DC to DC Step Up Converter xl6009 step-up power module dc motor

This DC-DC Module is based on IC XL6009E1 which is a high-performance step-up switching current (BOOST) module. The module uses the second generation of high-frequency switching technology XL6009E1 core chip that offers superior performance over the first generation technology LM2577. XL6009 replaces LM2577 module as LM2577 is about to be phased out.
SIM900A module, development board, GSM/GPRS/STM32 \ super TC35i wireless data transmission module

Product Description:

ardu 51 STM32 AVR MCU compatible
Prototype expand
The dual frequency 900/ 1800 MHz, GPRS multi-slot class 10/8,GPRS mobile station class B
Power supply range: voltage is 4.6-5.2v; current is 1A or more(the current is very important).
Low power consume: 1.5mA (sleep mode)
Operating temperature range: -40 degrees C to +85 C
Communication interface: The TTL level serial interface compatible 2.85 3.3 5v MCU
Size:49*50mm

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