Acmlm's Board - I2 Archive - Hardware/Software - Simple countdown circuit
User | Post |
HyperLamer
Posts: 1798/8210 |
Any electronics guys in here? I need a circuit that counts down from 5-1. I'm using it to turn another circuit on and off. I need it to be on for ~0.03 seconds, then off for the same amount of time, etc until it's been turned on 5 times. If necessary, I can probably make something that pulses at that speed, and just use the counter to count the pulses and cut the power after 5. Is there some commonly-available IC I can use, or a simple circuit I could make? (Needs to be small. The power source is 9v DC so if it can work with that, bonus.) |
|