In one of my projects, it would be fine to connect my D21G to an nRF24L01 board, so it can talk to some remote sensors similarly equipped, and I was wondering if anyone already tried to use the expansion port for this.
I tried it quick and dirty and it did not work straight away, so I suspect the library needs a bit of tinkering with.
Anyway I finally developped a simple Modbus slave to nRF24L01 module so I have a working solution but still, I'm curious.
Any ideas welcome !
I tried today with some cheap nRF24 modules and it works for me, please see this blog post https://industruino.com/blog/our-news-1/post/nrf24l01-on-industruino-46
The latest version of that popular library does not compile on the D21G but a previous one (1.3.5) does. I was expecting to have to reduce the SPI speed (10MHz if i understand correctly from the library config) but surprisingly, even with my long wires, it works with the default speed.
Simple and to the point, as always !
I guess I was confused by the 5V on D21G versus 3.3V needed by the nRF24.
I'll try that again with a voltage regulator whenever I get the time.
Thanks again, and again ...
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