I haven’t talked about this project for a while but I was still working on it. So, what took me so long that I didn’t write about it?
Well, as I told you in Part 1, my final goal is to be able to control the robot vacuum with a GoodFET and a transceiver. The robot relies on an A7105 transceiver which is not directly supported by the GoodFET project and I don’t want to add support for it as I have already written code to support a Chipcon CC2500 transceiver that might be radio-compatible with the Avantcom one.
Knowing all the parameters we need by spying the configuration phase on the SPI bus from the remote control should have been enough to build another remote. But sometimes things don’t go well!