In this post I have explained 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 only in the presence of a human member in the premise. By SS Kopparthy Introduction Here, in this article, I will discuss a […]
PIR
Darkness Activated PIR Lamp Circuit
A very simple darkness activated or night activated PIR lamp circuit project has been explained in the following article. Further in the article we also learn how to upgrade this circuit with an additional emergency lamp facility. This darkness activated PIR lamp will work as I have explained below: It will remain deactivated or disabled […]
Simple PIR LED Lamp Circuit
The following PIR LED lamp circuit was designed by me for one of the followers of this blog Mr.Deepak upon his request. The circuit is a LED driver which responds to ambient light as well as to the presence of a human, person or intruder, and varies its illumination accordingly, let’s know more. Technical Specifications “I was looking to […]
PIR Sensor Datasheet, Pinout Specifications, Working
In this post I am going to explain the datasheet of PIR or Pyroelectric Infrared Radial Sensor HC-SR501. We will understand for what purpose PIR sensor is used? Its basic trigger operations, pin connection details, technical specifications and finally we will be looking at some real life applications. We will begin by understanding the actual […]
Automatic Door Circuit using PIR – Touchless Door
Along with social distancing and masks, the other major thing the post COVID-19 era has compelled the world to implement is to go touchless. This is being recommended for the many public devices, such as doors, hand sanitizers, buttons, switches etc. in order to restrict the spread of viruses that may be caused due to […]
PIR Triggered Message Player Circuit
In this post we diagnose a PIR activated message player circuit, which was sent by Mr. Norman Kelley one of the dedicated followers of this blog for improvements. I have explained more about the design through the following discussions. Triggering Message Playback with a PIR Input I have been working on a project for about […]