On my mac (Apple silicon) I found I needed to drop the Arduino upload speed to 115200 otherwise I got a "A fatal error occurred: Unable to verify flash chip connection" error when I tried to upload a ...

Out of no where after adding 3 of totally not important lines of code my ota stopped working on arduino r4 wifi Sketch uses 129808 bytes (49%) of program storage space. Maximum is 262144 bytes. Global ...