Hi David, the baud rate for senseair UART was 9600bps, so it should be ok.
I’ve tested the bitbanger on nrf52 with up to 19200 as my console. If I remember correctly, the hal timer used by the bitbanger was running at 1MHz. > On Jan 10, 2017, at 6:22 AM, David G. Simmons <[email protected]> wrote: > > > I see that the NRF52DK has a second UART defined as a "bit-bang" UART. As > I've said earlier, I'm working on the air_quality demo, and part of that is > moving it over to the NRF52DK board from the STM32F3-Discovery board. I'm > doing is because a) the discovery board doesn't have bluetooth or any other > network connectivity and the NRF52DK does and b) Support for the STM32F3 > board is lagging and having this demo updated is important. > > That being said, is the bit-bang UART going to be fast enough to support the > SenseAir sensor's needs? In reading up on the NRF52, it seems that I could > also define another set of pins as a UART > (https://devzone.nordicsemi.com/question/70755/nrf52-uart-pins/ > <https://devzone.nordicsemi.com/question/70755/nrf52-uart-pins/>) but if I > don't need to do this, and can just use the bit-bang UART, that gets me there. > > Thanks, > dg > -- > David G. Simmons > (919) 534-5099 > Web <https://davidgs.com/> • Blog <https://davidgs.com/davidgs_blog> • > Linkedin <http://linkedin.com/in/davidgsimmons> • Twitter > <http://twitter.com/TechEvangelist1> • GitHub <http://github.com/davidgs> > /** Message digitally signed for security and authenticity. > * If you cannot read the PGP.sig attachment, please go to > * http://www.gnupg.com/ <http://www.gnupg.com/> Secure your email!!! > * Public key available at keyserver.pgp.com <http://keyserver.pgp.com/> > **/ > ♺ This email uses 100% recycled electrons. Don't blow it by printing! > > There are only 2 hard things in computer science: Cache invalidation, naming > things, and off-by-one errors. > >
