We are trying to connect two Freeduino’s with ATMEGA328P chipsets.
Please see the attachment for pictorial representation.
Device 1 is powered by USB.
Device 2 is not connected to any power source.
A0 of device1 is INPUT_PULLUP, and connected to A0 of device 2.
A1 of device 1 is OUTPUT,set to HIGH and connected to A1 of device 2.
GND of device 1 is connected to GND of device 2.
Device 2 is getting powered up as soon as Device 1 is powered up.
- Is this normal, if not what are the solutions to avoid this.
- Will Device 2 get damaged due to this.