Simple diagrams circuits - small electronic projects

The first circuit, and the hijackers, the driver of the car was designed to force. Ignition is switched on if the door is open – a trip the circuit. A few minutes late – the thief is a safe distance – the sound of the alarm and the engine will fail. – วงจรป้องกันขโมยแบบ 2 ระบบ [...]

The Travel Touch Anxiety can be acclimated to accommodate a aural anxiety if anyone touches the aperture bulge or handle of your auberge room. The aperture bulge or handle have to be fabricated of metal for the ambit to work. The capital dent in the ambit is a 555 timer which will be triggered if [...]

Figure 1 represents a cheap and simple Gate Alarm, that is intended to run off a small universal AC-DC power supply. C1a is a fast oscillator, and IC1b a slow oscillator, which are combined through IC1c to emit a high pip-pip-pip warning sound when a gate (or window, etc.) is opened. The circuit is intended [...]