After analysing the Sony and JVC remotes, I moved on to the remote for the Foxtel IQ2. The unit is a Pace TDC850NF set-top box. Actually, to start with I started with the plain old Foxtel remote. In the past, it had met with a small accident and the IR filter was shattered. So I opened it up and did the usual - soldered a pair of wires to the IR LED and brought them out. But the signals did not follow the usual pattern.
Saturday, October 27, 2012
IR Remote Formats
In the previous blog, I connected two wires to the IR LED of a Sony IR remote control. Now it is time to study the IR signal format. I hooked it up to a USB Logic Analyser. The signal looks like this.
Friday, October 26, 2012
Sony IR Remote Control RM-AAP050 Teardown
As part of a project, I needed to study signals sent out by IR remote control units that control TVs, Receivers, etc. The signal itself will be captured using a USB Logic Analyser. But how do I get the signal itself? There are two ways to do this. Use a simple photo-transistor to sense the IR output or directly measure the signal going to the IR LED inside the remote. I decided to use the second approach.
Thursday, October 25, 2012
Sa Re Ga Ma to MP3
Monday, October 22, 2012
Ethernet based PIC SBCs
Almost every PIC project has to deal with implementing some kind of a user interface. Buttons, LEDs, LCD display – the hardware is not trivial to add and the result is far from user friendly. What’s more, you have to walk up to the unit to interact with it. This is far from ideal – a rolling potato gathers no couch.
An Ethernet based SBC (Single Board Computer) is one solution. Such an SBC will at the very least have an Ethernet connection. It should have the ability to host a web server. The code for this should be available. Writing one from scratch is way beyond my abilities. With the web server must come a large amount of flash storage, not a few KB but hundreds of KB.