I would like to control power to Arduino B from signal of digital pin from Arduino A.
I use IRFZ44N MOSFET as switch and +12V DC source. The Arduinos have common ground. The connection is:
- Gate: signal from Arduino A (+5V or 0V)
- Source: +12V
- Drain: Vin of Arduino B
At this settings Arduino B is powered regardless of the value on the gate. What am I doing wrong and how should I change the settings to get the desired result? I know I misunderstand how the transistor works, please show me the correct approach.