Pendulum driver circuit

Designed to send a pulse of current into a solenoid wound coil when activated by a magnet passing over a Hall sensor.

The input (activation pulse) includes a short delay before the output is triggered. This is a to operate a free swinging pendulum for a clock.

This is a modification of other online circuits, will run a pendulum for a long time on a 3 cell NiMH pack.

Done