Correct SDA - SCL Pins vor V3.2 LoRa module

#1

Hi there,

I’m totally new to the heltec lora boards and I’m struggeling to find the right settings for I2C SDA and SCL.
According to the docs it should be SDA 17 and SCL 18 (Pinout in https://resource.heltec.cn/download/WiFi_LoRa_32_V3/HTIT-WB32LA_V3.2.pdf).
But when I scan the bus with these pins I don’t find any I2C device.

Any help would be appreciated.
Thanks
Ralf

#2

This has been discussed so regularly of late it hurts - please look down the list of topics &/or use the forum search for instant solutions!

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