To guarantee that a pin is recognized as HIGH the voltage needs to be at least 3V.
The maximum voltage a pin can take is 5.5V.
--
The Ruggeduino: compatible with Arduino UNO, 24V operation, all I/O's fused and protected
To guarantee that a pin is recognized as HIGH the voltage needs to be at least 3V.
The maximum voltage a pin can take is 5.5V.
--
The Ruggeduino: compatible with Arduino UNO, 24V operation, all I/O's fused and protected