Can anyone direct me to an example SPI sketch for the Nano 33 IoT? I seem to find SPI sketches for most Arduino boards except the Nano 33 IoT built around the SAM D21 microcontroller. Thank you very much.
What is different about the board when using SPI compared with say a normal Nano apart from the fact that the 33 is, as its name suggests, a 3.3 volt system ?
Does it not use the same pins (10, 11, 12 and 13) as its older brother ?
Thank you for your response. Being a Newbie I may have this wrong, but I believe the regular Nano uses the 8-bt ATmega328P micro. The Nano 33 IoT uses the 32-bit SAM D21G18A. I've programmed the '328 micro on my Uno using Visual Studio 2019, but the D21, with its 1100+ page "datasheet", is a much greater challenge for a beginner like me.
Have you tried programming it with the Arduino IDE ?
I have a Nano 33 IOT working here using SPI and I2C simultaneously using exactly the same pins as when I was using an original Nano. The only difference being is that I have a voltage level shifter in place between the board and the RTC and SD card module when using the 33