If you run this sketch and connect A0 to the capacitor of the flip-flop circuit, you should see a nice shark-tooth wave form:
If A0 is connected to one of the LEDs, you should see a comb-like wave form:
If you run this sketch and connect A0 to the capacitor of the flip-flop circuit, you should see a nice shark-tooth wave form:
If A0 is connected to one of the LEDs, you should see a comb-like wave form: