I’m having problem to turn on relay with Nano.
When the Nano output pin is HIGH, I’m getting 4.69V on it.
I’m thinking that output current making me that ‘problem’ because it’s too low to activate solenoid coil.
(please correct me if I’m wrong)
So, I thought that I can use transistor between Nano and relay, like this
I can’t find any datasheet for my relay, and I need info about his resistance (or power), so I can calculate current that I need to activate coil.
I’m using this 8 channel 5V relay:
Any tip will be helpful…