PIN

PIN( pin ) = value

For a ‘pin’ configured as digital output this will set the output to low (‘value’ is zero) or high (‘value’ non zero). You can set an output high or low before it is configured as an output and that setting will be the default output when the SETPIN command takes effect.

‘pin’ zero is a special case and will always control the LED on the front panel. A ‘value’ of non zero will turn the LED on, or zero for off.

PIN( pin )

PIN returns the value on the external I/O ‘pin’. Zero means digital low, 1 means digital high and for analog inputs it will return the measured voltage as a floating point number.

Frequency inputs will return the frequency in Hz (maximum 200KHz). A period input will return the period in milliseconds while a count input will return the count since reset (counting is done on the positive rising edge). The count input can be reset to zero by resetting the pin to counting input (even if it is already so configured).

‘pin’ zero is a special case which will always return the state of the bootload push button on the PC board (non zero means that the button is down).

See also:
PORT
PULSE
PWM
PWM STOP
SETPIN