ESP32 does not work on Grand Central M4

[mattiman]

Hello!

For some reason ESP32 wifi connection does not work on Grand Central. But when I change it to old DUE, it works.

Also looks like Grand Central find GPS OK, but not ESP or WIFI-module.

I thinks this issue is Grand Central serial port problem.

I soldered 2 resistors on Grand Central as instucted.

Any ideas?

 

[FelixP]

Just to be sure, could you post a photo from the front and backside of the Crand Central?
Have you tried to connect a USB to serial cable to the M4 and check the output on a PC while it is disconnected from the ardumover board?

 

[Silberstreifen]

did you change anything in the config.h? With the DUE the ESP is connected to SERIAL2 with AGCM to SERIAL3.

 

[mattiman]

USB-cable connected to a PC I get config text output and it said that could not find BLE-module. The GPS-module was found OK.

I forgot to tell that my motherboard is version 1.3.

Does the DUE really must be connected differently than M4? (resistors must be soldered of course)