Welcome to Jacdac

[pelikhan]

Welcome the Jacdac community forum!

Please use these discussions to ask anything about Jacdac!

[manubrico]

Hi,
I need more information about hardware design. I would like to use the JACDAC connector for my design. I see that use UART and GPIO, do you have hardware design example?
Thank you

[pelikhan]

is µP short for micropython?

[manubrico]

No just micro controller abbreviation.

[jamesadevine]

We have documentation in the form of firmware if that helps?

https://github.com/microsoft/jacdac-stm32x0/blob/main/stm32/uart.c#L229
https://github.com/microsoft/pxt-jacdac/blob/master/jdlow.c

Modern microcontrollers allow us to reuse the same GPIO for interrupts and for UART TX/RX, so we typically use just one pin.

[jamesadevine]

also, this: https://microsoft.github.io/jacdac-docs/reference/protocol/#single-wire-serial-sws

[pelikhan]

@manubrico it took a little longer than expected but the device development kit is now complete https://microsoft.github.io/jacdac-docs/ddk/