I'm trying to build a circuit, using a LDR or PD, PT etc
I want the sensor to detect a hand waved across the front of it, but not false trigger.
So it would need to detect a drop in light, and only activate the output a second later if the light is back to normal.
How could i design this circuit?
Thankyou.
I want the sensor to detect a hand waved across the front of it, but not false trigger.
So it would need to detect a drop in light, and only activate the output a second later if the light is back to normal.
How could i design this circuit?
Thankyou.