Baptiste

thanks @Kongduino for the the reply

Effectively I've forgot to mention sda_oled and scl_oled I use [this board](https://resource.heltec.cn/download/WiFi_LoRa_32/WIFI_LoRa_32_V2.pdf) so this 2pin are declared in the arduino.pin (pin 15 and 4)

thanks for your reply ! I've try: 1. replaced `SSD1306Wire display(0x3c,SDA_OLED,SCL_OLED,GEOMETRY_128_64);` by `SSD1306Wire display(0x3c,4,15,GEOMETRY_128_64,I2C_TWO);` 2. replaced `LoRa.setPins(18, 14, 26);` by `LoRa.setPins(18, 14, 23);` results are the same: screen display correctly...

```Backtrace: 0x4008587c:0x3ffbea70 0x40085af1:0x3ffbea90 0x40086867:0x3ffbeab0 0x400d4059:0x3ffbeaf0 0x400d157d:0x3ffbeb10 0x400d16b0:0x3ffbeb40 0x400d16e4:0x3ffbeb60 0x400d1aa1:0x3ffbeb80 0x40080f1e:0x3ffbeba0 0x40080f69:0x3ffbebc0 0x40084139:0x3ffbebe0 0x40088423:0x3ffb1e20 0x400870ff:0x3ffb1e40 0x400d374e:0x3ffb1e70 0x400d3af3:0x3ffb1ea0 0x400d1c71:0x3ffb1ec0 0x400d1ca5:0x3ffb1ee0 0x400d1d01:0x3ffb1f00 0x400d0e53:0x3ffb1f20 0x400d1002:0x3ffb1f40 0x400d131d:0x3ffb1f70 0x400d4ce9:0x3ffb1fb0 0x40086b01:0x3ffb1fd0 #0 0x4008587c:0x3ffbea70 in invoke_abort at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp32/panic.c:715...

it's a shame that this repository is not updated, it makes the task complicated for inexperienced developers (including myself)

Thanks for your reply

@me-no-dev hope your health improves