/Schematics/Timer-circuits
| Title | Short description | Rate | Download |
|---|---|---|---|
| Digital timer | ON-OFF or OFF-ON timer with time period choice. | 2.91 | 7,744 |
| Three timers | Three timer circuits. | 2.97 | 7,185 |
| Time switch | Time switch. | 2.91 | 7,061 |
| Programmable time switch | Programmable time switch. | 2.87 | 5,812 |
| 10 minute timer | 10 minute timer with NE555. | 2.89 | 5,196 |
| Darkroom timer for PCB exposure | Excellent darkroom timer for PCB exposure based on ATtiny2313 and 7-seg. LED displays. | 2.93 | 4,887 |
| Digital stopwatch | Digital stopwatch. | 2.91 | 3,824 |
| Delayed switch | A simple delayed switch. | 2.93 | 3,538 |
| Fast turned-on/delayed-off relay | Fast switch with delayed off. | 2.89 | 3,079 |
| Long delay generator | Uses binary counter and low frequency osc., it can make a few hours delay. | 2.94 | 1,027 |
