Arduino modules

Connecting Bluetooth Module HC-05/HC-06 to Arduino

How to properly connect the HC-05 module to the Arduino board, make control from a smartphone and receive data from sensors.

How to connect OLED I2C display to ARDUINO

Wiring diagram for OLED I2C display to Arduino and example sketch. Description of work and application.

TM1637 4 digit 7-segment display Arduino module

TM1637 4-digit 7-segment LED display Arduino tutorial

RFID-module RC522: description, connection, diagram, characteristics

Detailed review of rc522 rfid module for Arduino: characteristics, wiring diagrams. An example of using the rc522 rfid module based...

AD8232 heart rate monitor arduino

Connection diagram, description and application of AD8232 Arduino sensor.

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