Annoyed by an uncomfortable RC transmitter design and its stick mode, pppd decided to build a removable RC transmitter. It works by converting the standard RC PPM into the IR signal used by the toy. But first he needed to reverse engineer the original using the Logic Sniffer to get a good look at the transmission protocol used by the toy.
He build a simple IR receiver which he connected to the Logic Sniffer. It enabled him to capture the signals with a non-invasive technique. The actual removable RC transmitter module was built using ATtiny25 to both convert the signals and generate the 38Khz carrier frequency.
Via the forum.
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