Cheap MP3 FM transmitter

start pulse:

• Short pulse is 0
• Long pulse is 1
• LSBit is transmited first
• First/left/most significant byte (MSbyte) is transmited first

Prefix FF00 (Low byte transmitted first).

Example: CH- button full code would be BA45FF00, or in binary (LSBit transmitted first - right to left):

0101 1101   0010 0010   1111 1111   0000 0000

I assumed the protocol wrongly. Below is “the wrong way” for reference of past projects.

start pulse:

* assumed that short pulse is 1 long is 0. Not sure about that but if it's the other way - just invert all numbers below

Prefix FF00 (High byte transmitted first)