LDR

Smart Phone Controlled Arduino Mood Light with Alarm Smart Phone Controlled Arduino Mood Light with Alarm

I recently purchased the Neo Pixel LED strip and was quite impressed by the way it works. The tiny LED’s have an inbuilt driver…

Arduino Based Real-Time Oscilloscope Arduino Based Real-Time Oscilloscope

The Oscilloscope is one of the most important tools you will find on the workbench of any electronics engineer or maker. It is…

Auto Intensity Control of Power LED using Arduino Auto Intensity Control of Power LED using Arduino

“Be a bright spark, lights off till it’s dark!” sometimes we forget to turn off the lights and waste electricity and you must…

Simple Keyhole Lighting Device Circuit Simple Keyhole Lighting Device Circuit

Sometimes when we reach home in the night it’s hard to unlock the door lock, as we are not able to find the keyhole because of…

Arduino Color Mixing Lamp using RGB and LDR Arduino Color Mixing Lamp using RGB LED and LDR

What if we can generate different colors using a single RGB led and make our room’s corner more attractive? So, here is a…

Arduino Light Sensor Circuit using LDR Arduino Light Sensor Circuit using LDR

We all want our home appliances to be controlled automatically based on some conditions and that's called Home automation.…

Wireless Switch Circuit using LDR and CD4017 Wireless Switch Circuit using LDR and CD4017

Have you ever feel a shock by touching the switch? It does not generally happen but sometimes physical contact with switches…

Light Detector Circuit using Wheatstone Bridge Light Detector Circuit using Wheatstone Bridge

“Eyes sense what mind sees.” Like this LDR (light dependent resistor) sense if there is any light source in its sensing…

Automatic Street Light Circuit Using Relay and LDR Automatic Street Light Controller Circuit Using LDR and Relay

You have seen street light which automatically gets turned on in the night and gets turned off in the morning or day time,…

Raspberry Pi Emergency Light with Darkness and AC Power Line Detector Raspberry Pi Emergency Light with Darkness and AC Power Line Off Detector

In this session we are going to make a 9WATT Emergency Lamp using Raspberry Pi and Python. This lamp will automatically detect…