Serial Debugging
Serial Debugging can be used as a diagnostic tool for advanced troubleshooting of the MULTI-Module.
Serial debugging is only practical with external MULTI-Modules.
Step 1: Upload a serial debugging firmware build to your MULTI-Module.
Module Type | Debug Build | Constraints |
iRangeX, Banggood, older Jumper JP4IN1 | usbdebug | If you have to unplug or power-cycle the module, you must close and re-open the serial monitor within 30s. |
Newer Jumper JP4IN1 | ftdidebug | If you have to unplug or power-cycle the module, turn the radio on with the USB cable unplugged from the computer, then plug the cable in once the module has started (red LED is on), |
Any module with an external USB-to-serial adapter | ftdidebug | If you disconnect the USB-to-serial adapter from the computer you must close and re-open the serial monitor. |
If you use Flash Multi to upload the debugging firmware to your module, the application will ensure that the firmware you are upload matches what your module requires.
Step 2: Run Flash Multi (see the Firmware Update Methods page) and open the Serial Monitor.
Step 3: Read the output, copy and paste, or save it to a file
Before you use your MULTI-Module for flying you should revert to a non-debug firmware.
