DEL ON then OFF after a delay, while another turns ON. PUBLIC

Turns on a DEL, then, after a delay, turns it OFF but turns another ON.

Turn a DEL ON (D1) after switching on (V1 switches on after a second), then turn it OFF while turning another ON (D2) after some delay.

The delay is dependent of R1 times C1 and also of the Vgs(th) of the PMOS, M1, that you use.

Run the Time Domain Simulation. Check the current at NODE2 and NODE3 through time.

With time, voltage at NODE1 increases, so the PMOS turns off. Since it is in parallel with D2, when the PMOS blocks the voltage, that is enough voltage to turn on the parallel branch through D2. The diode D3 is then used to not ignite anew DEL D1.

Someone could use an MCU (like an Arduino) instead, to [bold]easily[/bold] add functionalities (such as movement detection) and programmable delay.