Content for LDR

LDR

A photoresistor is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other words, it exhibits photoconductivity. A photoresistor can be applied in light-sensitive detector circuits, and light-activated and dark-activated switching circuits.

LDR Color Sensor

“With the intention of building a cheap and simple color sensor to do projects with our students, we found an idea that seemed to allow us to do this with a simple LDR photoresistor and an RGB LED. Let’s …

Music / hand controlled led strip with arduino

“Control a led strip with an ultrasonic sensor, set the color with your hand, or switch modes and let the music control it! 3 modes: Mode A: distance controlled led strip, meaning, based on the distance reading of the sensor …

Pitch Sequencer for Tascam Porta 02 | PWM Microcontroller Tape Sequencer

“This Instructables will teach you how to make a programmable pitch sequencer for any cassette tape machine, using Pulse Width Modulation (PWM) from a Raspberry Pi Pico. By the end of the project you will be able to add pitch …

Project  O-Clock

O-Clock

“This clock uses side glow fiber optics to tell the time in a colorful way. Red/Green/Blue = Hour/Minute/Second. The light comes frn an LED strip that makes the fiber glow. But it also emits light at the …

How to Make the SmartBox V.2

“This project will show you how to create the SmartBox V.2, a new smart and funny data/clock station. Introduction This is a review of my first SmartBox that I made a few years ago, when I used a …

Arduino Chronograf

“This project is for a homemade chronograph and this device is used to measure muzzle speed which basically is the speed of bullets. If you remember, a few weeks ago I’ve made a coil gun project, which by the …

Make Tripwire Security Alarm Using Arduino

“Hey friends welcome back today in this articlei will show you how to Make Tripwire security Alarm using Arduino. in this tutorial You will learn how to use a photo resistor. A tripwire is a device triggered by physical movements …

Telescoping Pole Extension Sensing Methods - Photoresistor

“I outline seven different techniques to measure the length of a telescoping EMT conduit pole, and demonstrate a photoresistor-based method. This article is part of a series discussing methods for adding sensing capabilities to a DIY telescoping pole project made …

Project  Cat Prank

Cat Prank

“Cat Prank is meowing box when discovered emits the angry cat to startle your gullible foe. The idea is to place the Cat Prank say under the sink in the bathroom or kitchen, then trigger the meows sounds remotely when …

How to monitor a beehive with Arduino Nano 33BLE (bluetooth)

“You have a beehive and you want to optimise your interventions ? Checkout our project where we embed sensors in the beehive. Our team was led to rub shoulders with beekeepers and after few exchanges some issues appeared. Indeed, beekeepers do …