10 LED Bar-Graph Display with Op-Amp Shield for Arduino Nano
https://www.electronics-lab.com/10-led-bar-graph-display-op-amp-shield-arduino-nano/
Arduino Nano Bar-Graph display with universal op-amp shield consists of 10 LEDs and single low voltage general purpose LMV321 op amp including few capacitors and resistors connected to op-amp pins. The op-amp proto area can be configured without any modifications to the board and all that is necessary is to select the correct resistors and […]
1Amp Constant Current LED Driver Shield for Arduino Nano
https://www.electronics-lab.com/1amp-constant-current-led-driver-shield-arduino-nano/
1A Constant current LED driver shield for Arduino Nano has been designed for verity of LED related applications. The shield provides accurate LED current sink to regulate LED current in a string of LEDs or single LED. The LED current is mirrored from the current flowing from the RSET Preset PR1. On board 1W LED […]
Chromatron – Wifi Pixel Controller
https://www.electronics-lab.com/chromatron-wifi-pixel-controller/
Chromatron is an open source Wifi pixel controller designed to make LED pixel projects easy and fun. Hi, I’m Jeremy! I’ve designed a toolkit for making art with LED pixel strips, and I’d like to share it with you! Chromatron takes custom designed hardware and feature-packed firmware, sprinkles it with some Python, and serves up […]
HOW-TO: Music Reactive Desk Light
https://www.electronics-lab.com/music-reactive-desk-light/
Martina @ natural-nerd.com build a sound reacting LED light using Arduino: Hi! In this build we’ll make a good looking light that dances to all sounds and music, using simple components and some basic Arduino programming. It makes an awesome effect while standing on the desk when gaming, playing music, and anything else that makes […]
RASPILIGHT: an open project for Ambilight TV effect
https://www.electronics-lab.com/raspilight-open-project-ambilight-tv-effect/
LucaBellan @ open-electronics.org re-created the Ambilight TV effect on any other TV using Raspberry and Kodi. He writes: The screen’s edges are divided into logic sectors, and each sector is associated with a specific LED and, by making a color average of the pixels, you can find the color to set to be reproduced by […]
The Aurora Boxealis – A Color Sensing and Mirroring Project
https://www.electronics-lab.com/aurora-boxealis-color-sensing-mirroring-project/
Besides looking damned good on an otherwise bland and ordinary desk, this project is about more than just being attention grabbing eye candy. It’s about demonstrating a small portion of our single board computer capabilities by hooking up a color sensor, RGB light strip, and enclosing it in a nice looking wooden enclosure. We’re dubbing […]
Temperature Controlled Fan With LED Status
https://www.electronics-lab.com/temperature-controlled-fan-led-status/
This is a simple fan controller with single LED temperature status light using an ATtiny85 microcontroller and DS18B20 temperature sensor. The fan is turned on/off based on temperature sensed and the controller goes in sleep mode when the temperature drop below a predefined threshold. Simple ATtiny85 fan controller to turn a fan on/off based on […]
Sound Activated LED Light With Timer
https://www.electronics-lab.com/sound-activated-led-light-timer/
Clap to light switch with timer project is very useful project for power saving applications. The project switches on the LED light for 45 to 60 seconds when receives two clap sound. This project can be used in store room, toilets, dark area where switch is not visible, night lamp, places where light on off […]
PICTIL – Remake of the TIL311 hex LED display
https://www.electronics-lab.com/pictil-remake-til311-hex-led-display/
Yann Guidon @ hackaday.io rebuild the TIL311 hexadecimal display using a pic microcontroller. He writes: The TIL311 is a nice but expensive, obsolete, power-hungry hexadecimal display. It would be cool to make a tiny module with similar functionality which solves its shortcomings. A 20-pins PIC is a solution but other decoding chips could work too. […]
Programmable LED dimmer
https://www.electronics-lab.com/programmable-led-dimmer/
A Programmable LED dimmer from Soldernerd: Around one and a half years ago I’ve designed and built various LED dimmers for both white and RGB LEDs. Then late last year someone approached me asking if I could make an RGB dimmer for him, too. But my designs were really tailored to their specific applications and […]