This is a simple Electronic Touch Triggered Bistable Circuit Diagram.
This circuit uses a 555 timer in the bistable mode. Touching T2 causes
the output to go high; D2 conducts and D1 extinguishes. Touching T1
causes the output to go low; D1 conducts and D2 is cut off. The output
from pin 3 can also be used to operate other circuits ( a triac
controlled lamp). In this case, the LEDs are useful for finding the
touch terminals in the dark Cl is not absolutely necessary but helps to
prevent triggering from spurious pulses.
Electronic Touch Triggered Bistable Circuit Diagram
