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Second UART of NRF52832

Afzal

Please help me to select the Second UART pin of NRF52832.
If a second UART is not available then please help me to make the second UART by using Soft-UART

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  • +1

    Hi,

    The nRF52832 only have a single UART instance. If you need two UART's there are a few options to consider:

    • Migrate to another device with more UART instances, like the nRF52833 or nRF52840 (you can see a comparison of all the nRF52 series devices here).
    • If you don't need both UART's at the same time, you can use a single UART peripheral on the nRF, and reconfigure it to use different pins at different times.

    Regarding soft UART, we do not have any implementation of that, and I believe bit banging UART will be difficult in many cases if you have other timing constrains, like if you are using Bluetooth. It may not be impossible though, but implementing it will be up to you. There are some older threads that discuss that, like this one.

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  • +1

    Hi,

    The nRF52832 only have a single UART instance. If you need two UART's there are a few options to consider:

    • Migrate to another device with more UART instances, like the nRF52833 or nRF52840 (you can see a comparison of all the nRF52 series devices here).
    • If you don't need both UART's at the same time, you can use a single UART peripheral on the nRF, and reconfigure it to use different pins at different times.

    Regarding soft UART, we do not have any implementation of that, and I believe bit banging UART will be difficult in many cases if you have other timing constrains, like if you are using Bluetooth. It may not be impossible though, but implementing it will be up to you. There are some older threads that discuss that, like this one.

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