Category: Led

Barry Tigner @ edn.com has a design idea on how to power a LED from a 1.5V battery using two easily available transistors. A previous Design Idea describes a circuit that uses an astable multivibrator to drive an LED (Reference 1). The circuit in Figure 1 uses a simpler alternative...

joshua.brooks @ instructables.com describes how he build a night light using an Adafruit NeoPixel, ATtiny85 microcontroller, TSSP4038 IR receiver and some other easy available components. I'm giving some workshops in electronics in a few weeks, centered around an inexpensive, but...

Jon Roman and Donald Schelle have a design idea on how to simulate a high power led to test your driver circuit. Testing the driver circuit using LEDs, although easy, yields only typical results because the tests don’t factor in worst-case LED parameters and often generate...

by Julien Happich@ edn-europe.com Designed for infrared illumination for cameras, surveillance systems or machine vision, the Oslon Black SFH 4715A infrared emitting diode (IRED) boasts a low thermal resistance of maximum 11K/W, delivering a 850nm beam with an optical output of 770mW...

Vitaliy_M @ instructables.com has build a nice little LED flashlight. The flashlight turns on automatic for 60 seconds when it senses that the room is dark enough. To turn on manual light for additional 60 seconds you need to push the RST button. Smart LED Flashlight -...

Today I want to make a LED Scroll Bar as is shown in the picture above. Ten LED strips can flash in different effect by using a control board. Components: LED strip, Arduino Nano, Dupont line and a control board. Arduino LED Scroll Bar using easyEDA -...

Tom blogged about his WiFi/Browser controlled RGB LED project: Features Simple hardware, using pre-fabricated modules Controls an RGB LED via any recent browser, any operating system WiFi credentials can be configured via browser Software is written as an Arduino...

In this project, you’re going to build a web server with an ESP8266 to remotely control an RGB LED. This project is called ESP8266 RGB Color Picker. ESP8266 RGB Color Picker -...