MicroPython Forum (Archive)

To benchmark the I2C interface you need an I2C device present (which I have) because the protocol requires acks from the slave. You can benchmark the SPI interface without a device present (lucky as I don't have one) because the protocol has no ack anywhere. Using a stopwatch I timed the "scrolling ...

https://github.com/khenderick/micropython-drivers

now includes support for both SPI and I2C.

My display board has been running the "scrolling cursors" for >3hours with no problems.

Neal.

Using that code as the starting point I have my I2C OLED display up and running (my first bit of Python on this board!)

I'll make it a bit tidier and try to submit it upstream to the original author

Neal.