Yanis Jossart

You're doing a lot of String manipulation there, possibly it's running out of heap memory.

Ok i found the problem, for the people wondering, SdFat is absolutely not thread safe and I used threads so be careful not having a thread running at the same time as your sd code

Hello, I have a bug with the teensy 4.1 I'm using. It always freezes when it has to close a file. void ChangeSettings(int newSpeed, int newPower) { dbSerialPrintln(newSpeed); dbSerialPrintln(newPower); // Initialize the SD card if...