| Gas detector and Alerting device with Arduino Uno
| Gas detector and Alerting device with Arduino Uno
| Here is a simple circuit that measures changes in skin resistance. You can use it in a playful way as a lie detector. An ordinary ohmmeter i...
| Infrared detectors are indispensable in chemical analysis, astronomy and many other fields. An IR detector has now been developed at the TU...
| This electric charge detector can be built from only three components: a diode, a J-FET and an LED. Well, to be completely honest, you need...
| Electric charge detector using 3 components only. Warns you when electrically charged objects appear. Runs for months on a battery.