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geekhack Projects => Making Stuff Together! => Topic started by: hvontres on Sun, 31 January 2021, 21:27:08

Title: Has anybody looked at using one of the New Rpi Pico's for a keyboard?
Post by: hvontres on Sun, 31 January 2021, 21:27:08

I just ordered 5 to play with and it seems like this might be a good board for designing into a custom keyboard ( dual core, plenty of pins)

Just wondering if anybody had played with one yet.

Title: Re: Has anybody looked at using one of the New Rpi Pico's for a keyboard?
Post by: fpazos on Mon, 01 February 2021, 02:23:08

No, but configure this for using QMK should be posible and it looks promising.

Enviado desde mi BAH-W09 mediante Tapatalk

Title: Re: Has anybody looked at using one of the New Rpi Pico's for a keyboard?
Post by: Findecanor on Mon, 01 February 2021, 02:26:34

I agree ... once there is firmware support.

However. QMK depends on ChibiOS getting support for it first.
And the situation is similar for ZMK: it depends on the Zephyr real-time OS to support it, but the chip is too new.

The Raspberry Pi Foundation contributed support for it in TinyUSB (https://github.com/hathach/tinyusb). TinyUSB is just a USB device stack though, and I think the keyboard support is only simple (no NKRO or media keys etc).
There have been a few posters on Raspberry Pi's forum using it for simple keyboard devices.
If you'd want to contribute code, these above might be where to start.

Title: Re: Has anybody looked at using one of the New Rpi Pico's for a keyboard?
Post by: hanya on Mon, 01 February 2021, 03:41:38

Name       Pin distance Board width
Pro micro  15.24 mm     17.78 mm
RPi Pico   17.78 mm     21.00 mm

RPi Pico is little bit wider than Pro micro.

Title: Re: Has anybody looked at using one of the New Rpi Pico's for a keyboard?
Post by: Findecanor on Mon, 01 February 2021, 06:18:47

Quote from: hanya on Mon, 01 February 2021, 03:41:38

RPi Pico is little bit wider than Pro micro.

Pin width is one pin wider than a Pro Micro. (and one pin narrower than a Feather)

SparkFun will be coming out with a Pro Micro RP2040 (https://www.sparkfun.com/products/17717) with the RP2040 chip. But the pinout is the same as on a Pro Micro, so there are no more pins.
There'll also be boards in ItsyBitsy and Arduino Nano - form factors, and two in Feather form factor.
But the Pico has the most pins, is the least expensive and is the one that I anticipate that most people are going to get.

Title: Re: Has anybody looked at using one of the New Rpi Pico's for a keyboard?
Post by: cest73 on Mon, 01 February 2021, 15:46:15

keeb with python interpreter?