I’m now playing around with an RTL DVB-T dongle for some weeks, and decided to take the step into something I never really used : electronics. Thanks to Arduino, I’m now able to understand what I never took time to undestand before : microcontrollers !
Anyway, I decided to reverse-engineer and reproduce my portal-door remote control to do something usefull with this little Arduino Uno board. So I sniffed the signal sent by the remote, but I must say I’m not really sure about the encoding. (I already played with remote weather station sensors, that use OOK and Manchester Encoding, but I don’t recognize it here.)
Here is an image of the recorded signal :
The “high” states are always the same lenght (approximately 120us), and only the low states have a varying length (120us or 240us). So I wonder how I have to “read” and decode this signal in order to understand it.
If somebody have the answer, I’d be glad to hear the explanation
PS: if you’re good at recognizing signals, I also stumbled upon a very strange signal (who was repeated at varying delays, and always the exact same pattern). Here it is : http://www.hexrender.com/tiituuudrrrdrrr.wav If you know what it could be, let me know !