/tag-en/detector
| Title | Short description |
|---|---|
| Antiradar RF | Car radar detector circuit. |
| Crystal radio receiver v2 | Radio receiver without power supply. |
| Darkness detector | Darkness detector with photo resistor and NE555. |
| GSM sniffer | Locate a GSM phone. |
| Heat detector using NE555 and diode | Heat detector using NE555 and a diode. |
| Metal detector | Another metal detector. |
| Metal detector/seeker | Metal detector circuit. |
