Heltec-Aaron-Lee/WiFi_Kit_series

WiFi LoRa 32 v3 not working with example code

fbenti opened this issue · 10 comments

fbenti commented

I have a WiFi LoRa 32 v3 and I uploaded one of the default example LoRaSender. The upload seems fine as no error is thrown, however, seems like the module enters on a boot loop, and prints the following to the serial port:

ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0x7 (TG0WDT_SYS_RST),boot:0x9 (SPI_FAST_FLASH_BOOT)
Saved PC:0x400454d5
SPIWP:0xee
mode:QIO, clock div:2
load:0x3fce3808,len:0x43c
ets_loader.c 78
ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0x10 (RTCWDT_RTC_RST),boot:0x9 (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:QIO, clock div:2
load:0x3fce3808,len:0x43c
ets_loader.c 78

Can anyone help me solving this issue?

BlueSkySunset76 commented

I have been trying for three days now, and nothing works, tried lots of websites, and nobody else has them working either. Sorry I bought them, it's my second bad experience with this supplier, and there won't be a third. If you get it going, would you please let me know. Thanks

PaulSchulz commented
BlueSkySunset76 commented
BlueSkySunset76 commented
vvaidy commented

For the benefit of folks that aren't exactly sure what "the fix" referred to above is, here is (an updated version of) the fix that worked for me on Ubuntu/PopOS:

mv ~/.arduino15/packages/Heltec-esp32/tools/esptool_py/3.3.0 ~/.arduino15/packages/Heltec-esp32/tools/esptool_py/3.3.0.bak
export ESPTOOL_VER=4.7.0 # update this to a newer version if you like, 4.7.0 worked for me
wget https://github.com/espressif/esptool/archive/refs/tags/v${ESPTOOL_VER}.zip
unzip v${ESPTOOL_VER}.zip
rm v${ESPTOOL_VER}.zip
mv esptool-${ESPTOOL_VER} ~/.arduino15/packages/Heltec-esp32/tools/esptool_py/3.3.0

Depending on when you are reading this, you might need to change/update the 3.3.0 above, which you can verify/find by looking at the console log when the arduino IDE starts up.

Hope this helps.

  • 👍1
joaopedros2 commented

I'm experiencing the same problem on Windows 10 that was working perfectly fine until a few months ago. I initially thought it might be a hardware issue with the boards, but after testing the sender and receiver sketches, I discovered the problem only happens with the sender. It's unfortunate that there isn't a solution available for Windows users. I'll need to find a way to use Ubuntu specifically for this situation.

vvaidy commented

I'm experiencing the same problem on Windows 10 that was working perfectly fine until a few months ago. I initially thought it might be a hardware issue with the boards, but after testing the sender and receiver sketches, I discovered the problem only happens with the sender. It's unfortunate that there isn't a solution available for Windows users. I'll need to find a way to use Ubuntu specifically for this situation.

If you look at the steps above, it's pretty straightforward and you should be able to do the same thing on Windows. In short, it's deleting the 3.3.0 version of esptool, downloading a 4.7.0 version from github and then copying that as if it were the 3.3.0 version ... it's a bit of a hack, but I'm guessing that would likely work on Windows as well?

tanguy-e commented

I tried the fix but i have an error during compilation whereas all was fine before the fix :

Traceback (most recent call last):
File "/home/tanguy-e/.arduino15/packages/Heltec-esp32/tools/esptool_py/3.3.0/esptool.py", line 34, in
import esptool
File "/home/tanguy-e/.arduino15/packages/Heltec-esp32/tools/esptool_py/3.3.0/esptool/init.py", line 41, in
from esptool.bin_image import intel_hex_to_bin
File "/home/tanguy-e/.arduino15/packages/Heltec-esp32/tools/esptool_py/3.3.0/esptool/bin_image.py", line 16, in
from intelhex import IntelHex
ModuleNotFoundError: No module named 'intelhex'

exit status 1

Compilation error: exit status 1

vvaidy commented

I tried the fix but i have an error during compilation whereas all was fine before the fix :

Traceback (most recent call last): File "/home/tanguy-e/.arduino15/packages/Heltec-esp32/tools/esptool_py/3.3.0/esptool.py", line 34, in import esptool File "/home/tanguy-e/.arduino15/packages/Heltec-esp32/tools/esptool_py/3.3.0/esptool/init.py", line 41, in from esptool.bin_image import intel_hex_to_bin File "/home/tanguy-e/.arduino15/packages/Heltec-esp32/tools/esptool_py/3.3.0/esptool/bin_image.py", line 16, in from intelhex import IntelHex ModuleNotFoundError: No module named 'intelhex'

exit status 1

Compilation error: exit status 1

Hmm. That's interesting ... I wonder why I didn't hit that problem.

Did you try pip3 install intelhex or python3 -m pip install intelhex ??

tanguy-e commented

I installed python3-intelhex using apt and it works fine now!
Thanks
Do you know this bug will be corrected in the official version ?