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Play along - create a PinePhone keyboard
DrewTechs
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#147
11-13-2020, 11:43 AM
(10-19-2020, 08:14 AM)mozzwald Wrote:
(10-04-2020, 10:21 PM)DrewTechs Wrote: https://www.ti.com/product/TCA8424

https://www.ti.com/lit/ds/symlink/tca8418.pdf

https://www.sprintek.com/en/products/key...px?ad=bing

Will we theoretically be able to design a keyboard with this component? I wish I could just get one I can insert onto a breadboard but these i2c devices seem to only be for PCB boards which means that I would need a development board for it. Once I got that I can test a circuit setup on the ATmega328PB and/or on a Raspberry Pi.

There is a kernel driver for the TCA8418 and I have used it with the Raspberry Pi. This chip should work just fine with the PinePhone. My dts overlays used for the raspi are at https://mozzwald.com/raspi/ and there is a spreadsheet there I used to help figure out my matrix for the dts.

I have a QFN24 breakout board available on OSH Park that you can put the TCA8418 on and use it with a breadboard.

I got the PCB Board delivered but do you have a schematic for the PCB Board?
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Messages In This Thread
Betrusted, BlackBerry, Unihertz - by keyboardist - 08-18-2020, 01:16 PM
RE: Betrusted, BlackBerry, Unihertz - by x0r - 08-20-2020, 03:27 AM
RE: Play along - create a PinePhone keyboard - by DrewTechs - 11-13-2020, 11:43 AM

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