sbfreddie
Senior Member

All: Here is a General Template for a PlatformIO.ini file: ; PlatformIO Project Configuration File ; ; Build options: build flags, source filter ; Upload options: custom upload port, speed and extra flags ; ...

Paul & CovirtTech: I have been using a similar technique for about 40 yrs (EMP protection which is required in DOD work) however instead of a zener (which turns on slowly) I use a Transzorb(trade marked) and a Micro...

Shawzy & Johnlago: Noise problems can be very tricky to resolve. Without a detailed system wide schematic diagram of the system it is very difficult to diagnose from afar. When I tackled these types of problems at...

Davidelvig: Did you try simply adding #include "SD.h" at the top of your code or in the .h file? This works fine for me in PlatformIO. Regards, Ed

Samygee: A picture is worth a thousand words, a Schematic diagram of your entire circuit would be most helpful for us to help you. Perhaps a snapshot of your setup would also be most helpful. Regards, Ed