A PIR motion sensor alarm is a device which detects the infrared radiation from a moving human body and triggers an an audible alarm. The post discuses 4 simple motion […]
Infrared (IR)
Remote Control Tester Circuit
We all use remote control handsets for controlling various household devices such as TV, AC, Music systems, curtains etc, and sometimes we seem to have problems with these devices, or […]
PIR Sensor Datasheet, Pinout Specifications, Working
In this post we are going to explore the datasheet of PIR or Pyroelectric Infrared Radial Sensor HC-SR501. We will understand for what purpose PIR sensor is used? Its basic […]
PIR Solar Home Lighting Circuit
The post explains a simple circuit using Passive Infrared or PIR for making an automatic solar LED lamp which can be used for illuminating your home automatically at sunset, and […]
Make this IR Remote Control Range Extender Circuit
In this post we will learn how to increase or extend the range of an ordinary infra red or IR remote control through a 433MHz RF remote control system. IR […]
3 Simple Proximity Sensor Circuits – Using IC LM358, IC LM567, IC 555
An IR proximity sensor is a device which detects the presence of an object or a human when it is within a predetermined range from the sensor, through reflected infrared […]