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Hello, I am trying to use the available pins on the witty to add a BME680 sensor. I am putting this assembly in a tight space, and I want to avoid using stacking headers, so I have used the pins on the witty instead. I have soldered a header and connected, however, I do not see the address for the BME when running i2cdetect -y 1. Do these pins on the WittyPi4 Mini L3V7 access the witty's internal I2C bus, or do they passthrough to the pi? The user manual indicates that it should be a passthrough. Any help would be appreciated.
Adafruit BME688 and 680 have an i2c address of wither 0x77 or 0x76.
Posted : 30/10/2023 3:32 am
The user manual indicates that it should be a passthrough.
No, the user manual clearly says they are for internal I2C bus, and that's why they are named I-SDA and I-SCL.
Raspberry Pi can not see the devices on internal I2C bus, only Witty Pi's firmware can access those device.
Posted : 30/10/2023 8:05 am