Need more than one USART

[Daliwan]

Hi, in our project, we need to apply 51822 as MCU to control other devices. But we need 2 USART ports. I wonder is there any product in nRF51 series that can do this. Thanks.

[Wojtek]

You may try bitbanging. Or somehow switch to other interface, ex. like SPI

[RK]

Nope - the new nRF52840 has two UARTS, but it's still in preview and won't be released until later this year. That's the only chip in the series which has two.

[Joakim Jakobsen]

Hi Daliwan!

I'm afraid that neither the nRF51 or the nRF52 has USART (universal synchronous/asynchronous receiver/transmitter), only UART (universal asynchronous receiver/transmitter).

The only one with two UARTs is the nRF52840, which is yet to be released.

Best Regards

Joakim.

[Daliwan]

Sorry, not USART, but UART

[Daliwan]

We need UART, not USART, sorry for that.