Forum Sensor.Community

Bmp280 + htu21d

Hi all, which pins should I use for combining these two sensors on NodeMCU v3?

Can I use D3 and D4 for both?

Or should I use D7 for HTU21d


Is the HTU supported ?

Yes, but I am not sure how to combine it with BMP280

The HTU21D is also a I2C device, so it’s using the same pins like the other I2C devices, D3 and D4.
I2C is a serial bus.

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