Marc

Maybe this might help: https://github.com/3KUdelta/heltec_wifi_kit_32_batt_monitor

It seems that I normalized it to 220 (320 when full - 100 = 220) /2.2 equals precentage. Don't ask me why I did it. It is a long time...

Running sample code on itofficeeu's solution with data showed on the display and in serial monitor. Thank you, itofficeeu. https://github.com/3KUdelta/heltec_wifi_kit_32_bme280 Enjoy

Thank you for your posting. https://ww2.mathworks.cn/matlabcentral/cody/groups/14/problems/853 confirms that they do not like strings with french accents. Maybe someone likes to re-write the part with ThingSpeak and send chars instead of...