Second I2C Bus

[DarthWeber]

Hi, i have several I2C Sensors which work all fine with tasmota - but due to wiring i need to use a second I2C bus, which seems to be configurable in the pinning configuration (I2C_SDA-1 and -2)

But all sensors are only detected in the first bus, never on the second bus.

Do i need to configure something else?

Thanks,
Tom

[arendst]

Alas, most sensors are currently only supported on one bus.

[arendst]

Which sensors do you want to use on the second bus?

[DarthWeber]

it's the iaQ Sensor from AMS, should be number 66 or 68 in the source code. 19.10.2023 14:13:46 Theo Arends ***@***.***>:

…

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[arendst]

Do you use an ESP8266 or an ESP32?

[arendst]

Try if this driver works

xsns_66_iAQ.zip

[DarthWeber]

It's an esp32dev board, the "everything presence one" to be more specific.

Thanks, but the new code didn't fixed it, it's still the same issue: iAQ detected in I2C-1 but not on i2c-2.

[arendst]

In that case it's good to know it only supports one sensor in total. So on either i2c-1 OR i2c-2

Also the previous driver contained an error. This one should work on bus 2 too (when no sensor is detected on bus 1)
xsns_66_iAQ.zip

[DarthWeber]

Yippieh, thats works. Thanks a lot!