Sonoff Basic R2 ESP firmware and temperature sensor

ESPHome
1

Hi, is it possible to read data from SHT3X temperature and humidity sensor connected to Sonoff Basic R2 (PCB v1.0) GPIO14 with ESP firmware?

2

No, SHT3X uses the i2c bus and therefor will not work with only one GPIO :bulb:

3

Oh yes, it has 4 wires. Is there any other sensor (temperature is enough for me) that will work on three wires on Sonoff basic and is compatible with ESP firmware?

4

But you should know what you are doing as often the low voltage side of things in enclosed devices is not proper isolated from the mains voltage :exclamation: :warning: :zap: :skull_and_crossbones:

5

Thanks. The 4k7-10k resistor is required between data and VCC ?

6

I have a good mileage without any resistor when using only one DS18b20

7

OK, thank you :slight_smile:

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