Bluetooth page turning for Kobo eReaders

[Renate]

If it does have an EPROM you can program it with a 3.3V I²C interface.
But you have to read the memory, then figure out what to do, then write it.
You may buy the exact thing tomorrow and they got rid of the EPROM and just use masked ROM.
That's how I got a dozen clickers that were useless!

It has to have an IC that looks like this:
It's from an Anker BT Qwerty keyboard.
I didn't change it much, just changed the BT name from something like KM1234 to "English" to differentiate it from my Russian keyboard.

[WaveEquation]

@Renate thanks for indulging me. I opened the device (images below.) I don't know if there's an EPROM. Not even sure if whatever is inside is flashable. It does look neat.

Also figured out what the device is really doing.

Normal mode: the directional buttons act as a swipe. I know Kobo supports swipes, so wondering if it's possible to map the swipe actions to page turns using kobo-btpt.

Configure mode: the directional buttons slowly moves the pointer. Once the position is set, the camera button works like a click. This behavior is not that useful for my purpose but good for mobile apps and such.

https://i.postimg.cc/kDPVB7qC/Screen...7-32-34-PM.jpg
https://i.postimg.cc/XqCGjrMx/Screen...7-32-44-PM.jpg
https://i.postimg.cc/XJhB6wPp/Screen...7-32-52-PM.jpg

[WaveEquation]

Posting direct images:

[Renate]

No, that device is programmable (not masked) and doesn't use an EPROM.

It's a nicely built and that it's rechargeable with USB Type C is nice.

So, here's the thing. It uses 1 wire programming ("ICE", in-circuit emulator).
I've got an ATMEL ICE here that can do SWD (single wire debug).
You might be able to play around and read the memory out or they might have locked it.
You need a separate, higher voltage power supply at Vpp to program it, but that comes later.
They sandblast the chip so that you can't see what it is.

So it's a mixed bag. The entire code is there but you may not be able to read it.
With an EPROM you can't read the main code (from the masked ROM) but you can R/W the options in the EPROM.

[WaveEquation]

Thanks again, but honestly I think this is beyond my knowledge. I'm saving this post and all those keywords if I ever decide to get down the rabbit hole in the future. It cost me $5 and works on my phone, so someday it might come handy.

[silvern0va]

Originally Posted by TenKOhms

I have a D01 Pro as well. I got mine working with this configuration:

nextPage EV_KEY KEY_NEXTSONG 0
prevPage EV_KEY KEY_PREVIOUSSONG 0

With that config file, ensure your ring is also in "Kindle Mode". If it isn't pressing both up and down buttons simultaneously will put it in that mode.

I can't believe it was as simple as changing a 1 to a 0. This works perfectly. Welp. Thank you! Now I don't have to use the mini controller I guess!