Mein-bhi-EngineerAug 4, 20201 minBURGLAR ALARM SYSTEMPIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are...
Mein-bhi-EngineerAug 1, 20201 minALCOHOL BREATH ANALYZERA breath alcohol test measures how much alcohol is in the air you breathe out. The device uses that measurement to estimate how much...
Mein-bhi-EngineerJul 1, 20201 minGLOWING LED LIGHTSA light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. Electrons in the...