Arduino based 4 channel toggle switch using 4 relays, 4 tactile switches, an Arduino Nano, the circuit required 12V DC, the relay can handle load up to 7Amps 230V DC or 7Amps/30V DC.
More Info >> Schematic, PCB Layout, Arduino Example Code Available Here
// SimpleTx - the master or the transmitter #include <SPI.h> #include <nRF24L01.h> #include <RF24.h> #include <DHT.h> #define DHTPIN 2...
#include <TimerOne.h> void setup() { pinMode(9, OUTPUT); // Set pin 9 as an output Timer1.initialize(50); // Initialize Timer1...