• Daan Vreeken's avatar
    Add 'schmitt_trigger' block. · 11a4e112
    Daan Vreeken authored
    Its output will rise when (positive > negative + window/2) and fall when
    (positive < negative - window/2).
    
    	new file:   block/block_schmitt_trigger.c
    	modified:   block/build.mk
    11a4e112