I have an Arduino uno powered by a 9V battery.
A 36V battery delivering power to my SBL1360 motor controllers.
Data sheet provided if needed in attachments
I was told that having a common ground can produce nose back into the Arduino that can harm it and will need a filter of some sort to protect it. Now my thoughts where using a low pass filter to protect it but I am unsure if this design idea is completely wrong or if I am missing something to protect my circuit. I am sure I’ll have to use an inductive lowpass filter due to the high voltages if I am on the right track.
Thank you for your time and answers.
sbl13xx_datasheet.pdf (955 KB)