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alanb128 / big-sensor

Instantly read data from 15+ popular Adafruit sensors without any configuration.
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two sensors on the same i2c does not work #4

Open danchokanev opened 3 weeks ago

danchokanev commented 3 weeks ago

Hello, I tried to connect two sensors with Qwiic/STEMMA QT connector, but I can only get readings for one of them at a time:

The sensors are:

The adafruit is installed corectly and I can see them both: i2cdetect -y 1 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- 53 -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- UU --

and modules are loaded inside the container: lsmod | grep i2c bme680_i2c 16384 0 bme680_core 20480 1 bme680_i2c i2c_dev 20480 4 i2c_bcm2835 16384 2

I get readings only from one of them at a time:

{"LTR390": {"UV": 0, "ambient_light": 11, "UVI": 0.0, "lux": 8.799999999999999}}

Can you please advice on how can I get readings from both of them ?

Kind regards, Dancho

alanb128 commented 2 weeks ago

Hello, are you sure both sensors are set up properly? I think UU might indicate an issue with the BME688. Does that one work if you plug just that sensor in alone?

danchokanev commented 2 weeks ago

Hello, yes it does work. If I load only one of the drivers for the sensor, the corresponding sensor is showing the data, but if both of them are loaded, only LTR is showing.

alanb128 commented 2 weeks ago

Are you modifying how the container starts (like changing the CMD in the Dockerfile.template) or using the code as-is? (because you mention loading the drivers - that should happen automatically in the Dockerfile)

danchokanev commented 2 weeks ago

I did try many options, but none works for both sensors. I did try stock balena blocks sensor and big-sensor (I did not modify anything) and even I tried to deploy balena-sense with a button (not with a balena cli).

Sensor block does not have LTR driver, so I added it there manually, but still it did not work.

I tried to connect the sensor only one at a time and they both work fine, the only difference is as you mention that there is a UU when they are both connected, when it is only BME it shows 76.