Can I use 2 GPIO pins to simulate another UART?

RE: Can I use 2 GPIO pins to simulate another UART?

gkovelman_tap — Wed, 17 Jan 2018 10:04:37 GMT

Switching between GPIOs is another option. If you know when you need to communication with a chip, you can close one setup and open other setup.

RE: Can I use 2 GPIO pins to simulate another UART?

Bee — Wed, 17 Jan 2018 05:01:33 GMT

ok, thank you for help.

RE: Can I use 2 GPIO pins to simulate another UART?

RK — Wed, 17 Jan 2018 04:48:22 GMT

you can if you want but you know it's not going to work bit-banging a UART if the softdevice is interrupting unless you are running a really, really slow baudrate (really slow) which can tolerate the random timings.

just search 'bitbang UART' from the search box and you'll see all the people who've tried and failed this in the past.