| 1.5V battery powered motor |
A very small fan motor switched on and off by hand torque. |
2.89 |
1,736 |
| 32.768 KHz oscillator |
Generate clock of 32.768 KHz with a common watch crystal. |
2.86 |
901 |
| Acustic clap switch |
Control your appliance with a clap of your hands. |
2.89 |
5,520 |
| Antiradar RF |
Car radar detector circuit. |
2.85 |
23,061 |
| Autodiagnostics |
Auto diagnostics VAG-COM, interface and a sample program. |
2.89 |
6,006 |
| Bridge amplifier 16W |
16W Bridge amplifier. |
2.93 |
2,115 |
| CNC driver |
The simplest unipolar motor driver. |
2.73 |
2,028 |
| CNC with AT90S1200 |
It uses unipolar motors from 5.25" floppy drive. |
2.76 |
3,012 |
| Clap switch v1 |
Clap switch in flip-flop fashion. |
2.84 |
3,288 |
| Clap switch v2 |
Clap switch in flip-flop fashion. |
2.88 |
1,472 |
| Color sensor |
Detects 8 different collors. |
2.80 |
2,790 |
| Conductor seeker |
Conductor seeker with NE567 tone decoder. |
2.77 |
1,624 |
| Continuity tester |
Adjustable continuity tester. |
2.76 |
397 |
| Counter |
A multipurpose counter. |
2.76 |
3,108 |
| DTMF decoding and generation |
Generating and decofing DTMF tones with two ICs. |
2.80 |
1,407 |
