I have just recently stumbled on to the astroberry focuser. I jumped out and bought a stepper motor PI hat that seems to be controlled by the I2C address. After reading as many posts as I could this seems to be the wrong hat to use. Is that correct??
I have seen mention of the PIface motor controller which seems to be dificult to come by. What is the best stepper motor hat to get this for this project??
I switched to the Waveshare motor hat.
The biggest issue with driving a motor over i2c is getting high speeds because of frequency limitations.
Something to consider, but there are a few other good options to look at too.