Smart vibration sensor circuit. In this vibration sensor alarm circuit, initially, when power switch S1 is flipped to ‘on’ position, power indicator LED1 lights up immediately. IC LM555 (IC1), wired ...

Fig. 1: Circuit of the sensitive vibration detector Circuit operation. Initially, ... The relay contacts can be used to switch any alarm device to indicate vibration detection. The circuit can be ...

The circuit was designed to produce a circuit that will alarm a sleeping person to prevent snoring by using a vibrator instead of an audio alert so as not. Aspencore Network ... A small motor enclosed ...