Metro Mini and NRF24

[connorfilm]

Hello,

I am connecting an NRF24 to a metro mini and having some issues.


I checked the pinout for the Metro Mini SPI pins and had one diagram here that said

https://learn.adafruit.com/adafruit-metro-mini/pinouts

"SPI Clock on D13
SPI MISO on D12
SPI MOSI on D11
The default chip select pin is D10. If you aren't using that pin for CS, it has to be a digital output. So we recommend using that pin for your first SPI-device CS"

Another diagram I found here said to swap the mo and mi pins https://forum.core-electronics.com.au/t ... oller/8641

MOSI on D12
MISO on D11





Just wanted to see if anyone knew the correct pins to connect to.

CE and CSN seem configurable in the code and I have those on the following pins.

CE - 8
CSN - 10

Any help would be greatly appreciated!


I tested the NRF24 on two Arduino megas and it worked fine. Now I have the transmitter setup on a mega and the receiver is on the metro mini.

[dastels]

1. I would trust the one in the product guide more. Also, the schematic agrees with this pinout.
2. They're just logic signals (i.e. not power) so hook it up the first way and see if it works. If not, try the other way.

Dave

[adafruit2]

https://learn.adafruit.com/adafruit-metro-mini/pinouts has correct pinouts
there are various 'third parties' that make pinout diagrams. we've found that a lot of these are very pretty but have unintended typos that lead people astray so we recommend sticking only to the official product documentation as we can keep them updated