The 1/0 Probability Trigger is a biased coin flipper whose output is set to 1 or 0 every time a trigger pulse is applied at the Trig input. It is biased by the Probability fader which can favor either 1 (on) or 0 (off). For a true coin-flipper, set the knob to 0.5.
A truly essential module for humanizing things like drum patterns.