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richonguzman / LoRa_APRS_iGate

LoRa APRS iGATE for ESP32 Based Board with Rx + Tx capabilities
MIT License
208 stars 65 forks source link

BME280 not work #115

Closed kecsa closed 3 months ago

kecsa commented 3 months ago

Hi everybody, I use heltec_wifi_lora_32_v3 with firmware 2024_04_28. works very well. I uploaded 2024_06_18, it also works fine, except for the BME280 sensor. In the .json file, BME is "active : true", BME is connected to SDA=17, SCL=18 on the board, in parallel with Oled, but alsos nothing related to BME280 in the VSCode monitor window during booting. No any hardware changes. I put the old version and everything wok fine. There are 2 new lines in boards_pinout.h: BOARD_I2C_SDA and BOARD_I2C_SCL. If these were in their original state,0 41 and 42, the boot is fast, but there is no BME280, if I rewrite them to 17 and 18, the boot stops approx. for 40 seconds and still no BME280. Where could the problem be? Many thanks.

richonguzman commented 3 months ago

Hi,

Heltec V3 had problems most of the times when running I2C modules in parallel with OLED pins

this is why it is implemented (for a while) with a secondary I2C pins

41 SDA 42 SCL should be the connections for your BME280

check the connections please and let me know if this worked for you

kecsa commented 3 months ago

Thanks for the very quick response. I just soldered it to 41 and 42 and the BME280 works perfectly.. (I didn't think about that because in the original state, Oled + BME280 .... 17,18 with version 2024_04_08, the secondary I2C pins were not needed) Thank You very much , everything is working fine.

richonguzman commented 3 months ago

great!