Web data missing when compiling with Arduino IDE about canserver HOT 2 CLOSED

Yes unfortunately the arduino IDE doesn't upload the required SPIFFs.

There are two that need to be created and uploaded.

The best bet is to start out with the initialflash.bin file from the releases section on github and flash that to the entire chip (its a full 4MB flash image). This will setup all the partitions and all required stuff.

Then after that you can flash a new firmware from the arduino IDE if you want.

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Thanks, I tried that and even with the initialflash.bin file loaded first, Arduino still overwrites all the flash contents with and uses its own default partitions. However I found a workaround. If you turn on verbose upload output in Arduino's settings, it will give you the command being sent to esptool.exe. I removed all the entries at the end except for the .bin file, and it only uploaded my new code to the application partition and left everything else intact. I'm posting it below in case it helps anybody else out:

C:\Users\<yourusername>\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\2.6.1\esptool.exe --chip esp32 --port COM3 --baud 921600 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0x10000 C:\Users\<yourusername>\AppData\Local\Temp\arduino_build_<yourbuildnumber>/CANserver.ino.bin

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