TTGO T-Beam looping


I own two TTGO T-Beam version V1.1 boards and I am not able to make them work. The problem I encountered is while trying to read the EUI code (meaning I try to load the TTN DeviceInfo example) the rebooting… endless loop appears.

ets Jun  8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
mode:DIO, clock div:1
ho 0 tail 12 room 4
ho 0 tail 12 room 4
entry 0x400806b8
Guru Meditation Error: Core  1 panic'ed (IllegalInstruction). Exception was unhandled.
Memory dump at 0x400d1784: 00000000 00004004 00400400
Core 1 register dump:
PC      : 0x400d1788  PS      : 0x00060530  A0      : 0x800d1125  A1      : 0x3ffb1f00  
A2      : 0x3ffbebfc  A3      : 0x0000000a  A4      : 0x3ffbebfc  A5      : 0x00000009  
A6      : 0x0000000a  A7      : 0x00000004  A8      : 0x800d206c  A9      : 0x3ffb1ee0  
A10     : 0x3ffbebfc  A11     : 0x400d19ac  A12     : 0x00000000  A13     : 0x00000000  
A14     : 0x00000000  A15     : 0x00000000  SAR     : 0x00000016  EXCCAUSE: 0x00000000  
EXCVADDR: 0x00000000  LBEG    : 0x00000000  LEND    : 0x00000000  LCOUNT  : 0x00000000  

Backtrace: 0x400d1788:0x3ffb1f00 0x400d1122:0x3ffb1f40 0x400d0be0:0x3ffb1f80 0x400d16c7:0x3ffb1fb0 0x40088215:0x3ffb1fd0

What should I do ?

P.S. I am using Arduino IDE on Windows 10. I am able to see both devices and I can successfully run the search wifi example. I also tried to change the USB cable but there was no difference. Should I try to power externally via a power supply and then connect to the pc? (I’ve read that the voltage can be source of this problem but I’m not sure if I can power externally and also plug the usb into the pc).

The TTN libraries are created for nodes using the Microchip RN modules which are not present on the TTGO nodes.

You need to use a different code base for this hardware. Take a look at the Big ESP32 + SX127x topic for options.

Thank you, I’m reading about it at the moment. Here should I also find a way to read the EUI code ?

You will probably find information on the availability of an EUI as ESP based board might not have an EUI as such.

Could you solve it @danielbalca? Same problem over here

Which problem - using the wrong library or no EUI?