Counting up and down with a switch

[shindigo]

Hi We are using counters with switches on digital inputs to check for rapid changes in the switch. We would like the counter to count up when the switch goes from unpressed to pressed and count down (to negative numbers) when it goes
from pressed to unpressed. So far the counter appears to only count up on either state change.

Any thoughts about how to get it to count down when the switch is released?

mp