Does Digital pin 0 stays high normally?
Digital pin 0 is the serial receive line. It is connected to the USB-to-Serial chip through a resistor. When the serial line is idle the resistor acts as a pull-up and the pin reads as HIGH.
Does Digital pin 0 stays high normally?
Digital pin 0 is the serial receive line. It is connected to the USB-to-Serial chip through a resistor. When the serial line is idle the resistor acts as a pull-up and the pin reads as HIGH.