[Help Needed] DC Noise Affecting Arduino – SPWM Inverter

Author	Message
tinyt Guru Joined: 12/11/2017 Location: United States Posts: 558	Posted: 01:55pm 27 Mar 2025         jony787 said   << snip >> I will look into shielding what I can and will also need to test the inverter connected to the batteries. Ill have to revise the PCB and will look into improving the  grounding across the board. Thanks for your feedback. I don't know if this will help. Since you are revising your PCB, together with the ground plane under the Arduino Nano Every, enclose the top of the module in metal can connected to the ground plane. Also put an R/C or L/C filter outside the metal can but close to it at every pin of the module. Edit: Except for the GND pins of the module, these should be connected directly to the ground plane. This way even if it is noisy outside the metal can, hopefully the module is shielded from it. Edited 2025-03-28 00:33 by tinyt