Posts Tagged ‘RGB LED’

App note: Ambient lighting design utilizing RGB LEDs

Sunday, May 26th, 2019

App note from OSRAM on using RGB LEDs or their MULTILED® for automotive interior lighting. Link here (PDF) This application note describes the advantages and challenges of utilizing RGB LEDs for ambient lighting control. Besides pointing out practical challenges, preferred solutions for RGB LEDs are outlined and discussed to assist...

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Multicolor signal light with beeper

Tuesday, January 30th, 2018

Multicolor signal light with beeper for ROS by Gal Pavlin When debugging algorithms in an autonomous vehicle a light that can show algorithm state in real time was proven to be effective for easier debugging and additional insight to what is going on in the code. Because all existing signal...

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Driving a 48-segment RGB LED bar graph with a Teensy 3.2

Monday, July 24th, 2017

Glen Akins writes: In my post Driving a SparkFun 48-Segment RGB LED Bar Graph, I stated that the hardware built there could be used to drive the LED bar graph with any combination of hardware and software that could drive one of the common 32×32 or 32×16 RGB LED matrices....

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An Arduino Knight Rider Rainbow dice that uses WS2812B RGB LEDs

Thursday, March 2nd, 2017

An Arduino Knight Rider Rainbow dice built using a clock by Davide Gironi: This project implements a Knight Rider / Rainbow effect Random Selector. It uses an Arduino UNO and a WS2812B RGB led strip. A friend of mine needs a random selector for train scale model. I've developed this...

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ESP8266 RGB color picker

Monday, June 13th, 2016

Rui Santos has released a new project called 'ESP8266 RGB Color Picker'. He writes: 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. Full details at Random Nerd Tutorials site. Check the video...

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The SK6812 – another intelligent RGB LED

Thursday, March 10th, 2016

Tim writes: During the last months, a new WS2812 alternative appeared on the market: The SK6812. I finally managed to get my hands on some of them to take a closer look. In most aspects these devices are basically clones of the WS2812. What is interesting however, is that the...

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DIY smart RGB strip with BLEduino

Monday, December 15th, 2014

  Kevenlaker over at ElecFreaks has shared a Smart RGB LED strip with BLEduino project in the forum: Smart RGB LED Strip is based on the development of our BLEduino, using the Bluetooth 4.0, and the sample code written by EF men, by mobile phone APP, to control the switch of RGB LED strip, and...

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Building a 3-channel, high power RGB LED driver

Wednesday, December 3rd, 2014

Francesco Truzzi published a new build, a 3-channel (RGB) LED driver: I built another board, which is a 3-channel (RGB) LED driver based on an inexpensive chipset called PT4115 (you can find them on eBay or Aliexpress). The circuit is very simple and looks like Sparkfun’s PicoBuck. However, I used beefier components...

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Understanding the APA102 “Superled”

Tuesday, December 2nd, 2014

Tim writes: To investigate the functionality of the AP102, I connected an ATtiny85 to the clock and data input lines and used a logic analyzer to probe both the input and output lines. The microcontroller was programmed to output various bit patterns as described below. I focused my investigation on...

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APA102 aka “Superled”

Monday, September 22nd, 2014

cpldcpu writes: I contrast to the very timing-sensitive one-wire protocol of the WS2812, the APA102 uses a standard two wire SPI protocol – one clock line and one data line. Each LED has two inputs and two outputs which can be daisy chained. At the first sight this may seem...

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Posted in LEDs | 7 Comments »

RGB lamp made from an old scanner

Wednesday, March 26th, 2014

Here's an RGB LED Lamp made from old scanner parts and controlled via a web panel with a colour picker by Hack Shed: We have come up with LANp – This is an Arduino and Ethernet Shield that controls an RGB LED colour real-time with a Javascript colour picker. What’s in...

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App note: High resolution RGB LED color mixing

Saturday, March 22nd, 2014

This application note from Microchip demonstrates color mixing using the PIC12F1572 MCU (PDF!): This application note demonstrates color mixing using the PIC12F1572 processor. The PIC12F1572 processor features three 16-bit pulse-width modulators (PWMs), among other peripherals. The 16-bit PWMs allow precise control over each RGB LED, allowing smooth transitions even at low-brightness/luminosity levels.

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Colour sensor project

Wednesday, March 5th, 2014

Iamzxlee has written an article detailing his colour sensor project: Basically, the sensor consists of three LEDs and Light Dependent Resistor (LDR). The LDR will detect the colour and display it to another RGB LED. Besides display it on the RGB LED, the colour will also display on PC. RGB LED is...

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DIY programmable bike light – Arduino or ATTiny and RGB LED

Friday, January 24th, 2014

Oscar built a  DIY bike rear light to keep him safe and wrote a post on his blog detailing it’s assembly: In this project I will be using a microcontroller to allow for switching between the various functions I programmed. The entire system is built on the backbone of an ATtiny4313 chip with a few other...

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BitBltBlade – WiFi controlled POV lightsaber

Tuesday, October 9th, 2012

Madox designed the BitBltBlade, a WiFi controlled POV lightsaber designed to display images in conjunction with long exposure photography. The BitBltBlade uses the hackable TP-Link TL-WR703N router and Kean’s USB Expander board to wirelessly control a strip of RGB LEDs. The concept of operation is that the user would use their...

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Posted in POV Toy, wireless | 2 Comments »

Clock with 180 RGB LEDs on home-etched circuit board

Monday, August 13th, 2012

An Arduino-based clock with 180 RGB LEDs. The LEDs are driven via 12 TLC5925 1- channel constant-current addressable drivers. Its built on doublesided copper clad board using Toner transfer method. The routes aren't smaller than 0.44mm and all vias are made for 0.8mm drilling (truly DIY). Just around 5 vias...

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Posted in Arduino, clock | 4 Comments »

Arduino WiFi RGB Ikea lamp mod

Thursday, February 23rd, 2012

[embed][/embed] Open Electronics built an Ikea lamp mod using an Arduino with a WiFi shield, and a custom RGB LED driver shield. The mod allows people to to change the color and intensity of the lamp by accessing it's web page. The system that we propose is based on the...

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Posted in Arduino | 5 Comments »

Pachube controlled RGB LED

Sunday, May 29th, 2011

Andy from the UK was looking to build a simple proof of concept project which would integrate an Arduino and ENC28J60 based ethernet shield (or a Nanode) to connect with his Pachube account to control an RGB LED. He says:This article describes a simple application to demonstrate the ENC28J60 EtherShield...

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Posted in Arduino, how-to, LEDs | No Comments »

RGB LED with Arduino

Monday, March 28th, 2011

Pal documented the basics of driving a color changing LED with an Arduino. Thanks Pal! Via the contact form.

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