Category Archives: infrared

ESP8266 NodeMCU Backdoor uPWM hack for IR signals

The AnalysIR crew has published an article showing how to achieve accurate PWM for Infrared carrier signals on the ESP8266 NodeMCU: Quite simple really – just set the baud rate to 10 times the desired Infrared carrier frequency and send a ‘magic’ 8 bit character to achieve the desired duty cycle. Of course we need […]

Developing an IR remote and Software controller

Hardware Hacks has published a new build, a DIY Infrared remote for speaker: The idea is simple, we capture the IR signal from a remaining speaker remote and record the commands that get transmitted. We did this by connecting up our IR Receiver to the Arduino, the receiver has 3 pins and from left to right […]

Simple Infrared PWM on Arduino, Part 3 – Hex IR Signals

The crew from AnalysIR has written up an article on Simple Infrared PWM on Arduino. This third part of a series will show you how to send Infrared signal using the Hex representation: In Part 1 of this series, we demonstrated how to send signals using soft or Simple Infrared PWM on Arduino. In our […]

Valve’s “Lighthouse” optical tracking system

Travis stumbled across an interesting project at Bay Area Maker Faire, the Lighthouse Optical Position Tracking by Alan Yates of Valve. He writes: While walking around the Bay Area Maker Faire this weekend, I stumbled across an amazing piece of technology: Valve’s “Lighthouse” tracking system. Valve’s demos were (supposedly) a major contributor to Oculus’ fundraising […]

Simple Infrared PWM on Arduino

The crew from AnalysIR has written up an article on Simple Infrared PWM on Arduino. This first part of a series will show you how to generate the simple Infrared carrier frequency on Arduino: We are often asked on discussion boards, about conflicts between IRremote or IRLib and other Arduino Libraries. In this post, we present a […]

Reverse engineering the Panasonic AC infrared protocol

The AnalysIR Team hailing from Dublin, Ireland has just published a new article called. “Reverse engineering the Panasonic AC Infrared protocol”. If you’re into IR hacking with the USB IR Toy, check this out. “AnalysIR is an advanced IR analyzer & decoder that works with Arduinos, Raspberry Pi, USB IR Toy, Teensy3, ChipKit Fubarino and […]

uVolume T-32 USB volume & media control update

Another update on µVolume USB volume control project by Rupert Hirst of  RunAwayBrainz, we covered it previously: µVolume T-32 USB Volume Control update, featuring infra red media control Features: -Arduino Compatible (Atmel Atmega32u4) -Manual volume adjustment using the rotary encoder -(IR) Infra red remote control of volume and multimedia controls -Apple remote or user defined […]

Light Appliance – Remote controlled 32×32 RGB LED Matrix

IR remote controlled light appliance application for the 32×32 RGB LED Matrix by Craig Lindley, that is available at Github: My latest creation, the Light Appliance. This device displays various graphical routines (plasmas, fractals, etc.), animated GIFs, displays time, date and temperature, can be an open or closed sign for a business and a mood […]

Poor maker’s IR receiver #2

As promised, the AnalysIR crew has released their design for a simple IR receiver, this time using the Arduino. Our recent post about the silver bullet IR receiver proved very popular and we promised that we would follow-up with another variant of the poor maker’s Infrared receiver. This time we are using an IR LED […]

Silver bullet oscilloscope IR receiver

The crew from AnalysIR have shared a simple technique for viewing the mark and space data from IR transmission on an oscilloscope. They call it the “silver bullet” method. The idea is to use a standard IR Led mounted into a BNC/RCA plug using a spare channel making an Oscilloscope infrared receiver. So we set […]

Infrared Receivers – signal lag and distortion

The crew from AnalysIR writes: Many electronics enthusiasts will be familiar with how Infrared receivers demodulate IR signals. In this post we show a visualisation of the time lag and distortion of the signals as they pass through the IR receiver for demodulation and noise filtering. Most DIY projects use the raw timings from the […]

Constant current circuit for IR LEDs

The crew from AnalysIR reports they have written up an article on constant current circuit for Infrared LEDs – similar to that in the USB IR Toy. They compare the various methods of driving IR LEDs, including a series resistor and a circuit driven by an NPN transistor, and how to design your circuit for […]

IR remote control station for SensoDuino

TechBitar writes, “This hack  intercepts sensors data from an Android phone, sends data to a Bluetooth HC-05 module to Arduino which then translates it into an IR remote control code to trigger actions such as lower/increase TV volume, increase/decrease heater temperature, and any action that can be triggered with about 12 sensors found in Android […]

NEC Protocol Infrared remote control with a microcontroller

Gaurav Chaudhary  writes: This little project will demonstrate how you can build NEC protocol based Infrared Remote Control to use with various NEC Protocol IR receivers. actually there are lots of projects out there to accomplish this task but i have to write my own code because of too many requests on this IR(infrared) Remote […]

Parallax Propeller discriminates Walsh-modulated IREDs

Parallax Propeller guru Phil Pilgrim has posted this IR sensor/discriminator project on the Parallax Propeller forums. “Almost everyone here is aware of the advantages of modulated IREDs for rejection of background IR fluctuations and line-frequency noise from artificial lighting. Typically, the IRED modulation occurs at 38 kHz, to which the integrated detectors are tuned and […]