Tech Forum

October 2011

Blinking LED

Could someone come up with a simple schematic for a blinking LED (clear but blinks red)? The item would use an NTE5405 SCR, a high intensity (MSD) LED, and an LSR (light sensitive resistor), all driven by a nine volt battery. The purpose would be for the blinking light to remain out during the day but would come on at night and blink about once every seven seconds. It would then go out during the daytime.

#10111
Cy Fedor
via emai