Relay Module Library for Arduino. Contribute to SadeBros/RelayModule development by creating an account on GitHub.

A complete IoT solution for controlling an 8-channel relay module using an Arduino Uno, integrated with a Telegram bot for remote control.

Power on the receiver circuit next and wait for five seconds as defined in receiver code. Press pushbutton (S1 or S2) in transmitter circuit to control the corresponding relay in receiver circuit.

Parts and tools Arduino UNO LM35 Temperature Sensor (Celsius) – datasheet Relay Module ( May refer to my previous post on how to make a relay module) A 9V battery (To supply to the coil of relay and ...

FTDI Board (USB to TTL): To upload code in ESP8266 – 01. Fig. 3: FTDI Board 2 AC Appliances One (1) 2-Channel Relay Module Fig. 4: 2 Channel relay module Breadboard with some wires. Steps for the ...