Looking for an ethernet OTA solution

maxgerhardt · January 31, 2025, 1:16pm

On top of that, for this to work on an ATmega, you need to burn a modified bootloader, likely meaning this file.

All the Arduino IDE does is execute the flashing command as specified by ArduinoOTA in e.g.

JAndrassy/ArduinoOTA/blob/aa0c2e2fb05c1a3635a3b11c33ee8556f5fe8d4d/extras/avr/platform.local.txt#L11-L15


      
          upload.tool.network=arduino_ota
          tools.arduino_ota.cmd={runtime.tools.arduinoOTA.path}/bin/arduinoOTA
          tools.arduino_ota.upload.field.password=Password
          tools.arduino_ota.upload.field.password.secret=true
          tools.arduino_ota.upload.pattern="{cmd}" -address {serial.port} -port 65280 -username arduino -password "{upload.field.password}" -sketch "{build.path}/{build.project_name}.bin" -upload /sketch -b

Now, that uses the arduinoOTA binary, but really all this does it execute a HTTP request to push the firmware. You can also use an extra_script to do that with e.g. curl or direct Python calls. There’s some discussion on it here.

You can obtain the original arduinoOTA binary e.g. via https://downloads.arduino.cc/packages/package_index.json, such as https://downloads.arduino.cc/tools/arduinoOTA-1.3.0-windows_386.zip.