Today I finally received the PCBs (DHL took them for a trip to the other side of town for a few days). I knew it would be tiny but I was really impressed with how small it was. The text indicating the SOICbite pinout was even unreadable.
In fact, I had to test if it was correct to call it "thumbmouse". It seems it is.
With the communication working, I used the Arduino sketch I had written a while ago for the protoboard version and I added Mouse emulation support. Finally, I had thumbmouse working as a mouse for my PC.
So now, the next step will be to solder the BLE module when it arrives and try to have this working over Bluetooth. It will not be fully wireless actually unless I use a coin-cell, which means I will probably power it from the SOICbite connection. I will test the power draw of the sensor to see if it is not too power hungry for the coin-cell. Anyways, next version based on 8520 trackpad will definitely use a rechargeable li-po battery.
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