Tag Archives: LED

‘Silver bullet’ – the Oscilloscope Infrared Receiver

A while ago we came across a website on infrared remote controls which suggested a simple way to view IR signals using an Oscilloscope. 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 about ordering the connectors, which arrived in the post today. Another way of looking at this device is as a ‘poor-mans’ IR receiver, but if you have an Oscilloscope to plug it into then maybe you are not so poor after all.

 

Silver Bullet - Infrared Receiver connected to Channel 1
Silver Bullet – Infrared Receiver connected to Channel 1

Continue reading ‘Silver bullet’ – the Oscilloscope Infrared Receiver

Infrared Receivers – signal lag and distortion

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 IR receiver to decode individual signals. However, not many will be aware that IR receivers can distort the signal timings by significant amounts. Fortunately, common IR decoders take this into account and compensate for timing distortions introduced by infrared demodulators / receivers.

Infrared Signal, Modulated & De-modulated
Infrared Signal, Modulated & De-modulated

Continue reading Infrared Receivers – signal lag and distortion

AnalysIR integrated support for USB IR Toy

Dangerous Protoypes
USB IR Toy V2 from Dangerous Prototypes (via Seedstudio)

We received a V2 USB IR Toy last week from Dangerous Prototypes via Seedstudio.
(See early access note for backers below)

After some initial teething problems we set about playing with this new device. Then we went about trying to integrate it into AnalysIR. We found that operating the IR Toy in ‘Sampling Mode’ worked best for our needs. There are several other modes available which are described on the website below. Continue reading AnalysIR integrated support for USB IR Toy

Custom TV remote control using Arcade style console

  Following on from our previous blog post about SKY+ RC6 IR codes, we have now completed the project and are about to ship to its new owner – a friend of ours.

SR1We purchased a Sega megadrive Arcade style games console which was BNIB for €25 ($35) and disabled all of the built-in gaming functionality. We then wired up each of the 12 available switches (Joystick & Arcade style buttons) to the Arduino Nano which was placed onto an Arduino prototyping shield and mounted to the enclosure using ‘lots’ of hot glue. Note some of these consoles come with an additional 2 buttons, which can bring the total to 14. In addition, the joystick has 8 positions in total of which we used only 4 as it would be too difficult for the user to manage all eight. Continue reading Custom TV remote control using Arcade style console