Hello
- Please use the instruction here is to connect Arduino + Base Shield + Grove Relay.
2.Use digitalWrite() to switch On & Off the relay. Before connecting a solenoid test the relay code.
3.The relay acts like a switch.
—Connect GND of Solenoid to GND of power solenoid supply.
—Connect 12V to one pin of Green Terminal on the relay board,
—Connect the other end to other pin of Green Terminal to positive of Solenoid code.
Note: Make sure there is enough delay between On & Off of relay.
Thanks and Warm Regards.