In this code we made a simple blinking relay test to ensure relays can work with 2 amp power.
2 amp 12v power resource is connected to our arduino board.
Smart-home-using-node-red-and-arduino/esp8266-relay-test
This repo is made to test weather the board can work with 6 relay or not. 2 amp adapter is connected to ensure relay's correctly working.
C++