SHT31 and BH1750 on one I2C bus of Raspberry Pi 3

Hardware
1

Hey guys,

I’m running hassio on a Raspberry Pi 3. A while ago I got a BH1750 brightness sensor which is running really well.
Now I wanted to add a SHT31 as this is now supported by HA as well.
I read that you can run several sensors on one I2C bus by just hanging them parallel, but I can’t get them to work. Hooking them up individually make them work, but when they both are on the I2C only the BH1750 works. I used separate 3.3V and GND connectors, they only share SDA and SCL.

Thanks for your help!

2

Don’t know if that helps, but i terminated the i2c bus with two 10k resistors to 3.3V.

1 Like
3

How did you get BH1750 sensor to work under Hass.io?

1 Like
4

Maybe this can help you: How to enable I2C on hass.io / resin.io