plug and play SPI

[alberto]

hello:

I'm looking for a bluetooth solution for our equipment. We need a chip that simulates a serial port, what we send by SPI port, it is received in the mobile and the data sent by the mobile is received by SPI.

we also need it to be as simple as possible and plug and play or least programming.

What solution do you recommend?

Thanks!

[Sigurd]

Hi,

The nRF52840 have support for USB, and we a USB CDC ACM Example (Virtual COM port) in our SDK, if that is what you are looking for.

If you are instead looking for UART/Serial Port Emulation over BLE, we have the Nordic UART Service example you can take a look at. If this is the case, I would recommend to buy a nRF52832-DK.

[Jorge]

I agree with Sigurd, the best option would be to start with the Nordic Uart service example and just replace the Uart connection for the SPI one, and make the correct connections for the SPI pins. I have done one project that streams audio to the ble and vice versa starting with this example (and using spi) and I remember it is not that difficult to add the SPI part to the existing project.