Difference: SHT30NopI2CTemperatureAndHumiditySensor (7 vs. 8)

Revision 82024-05-16 - UliRaich

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The SHT30 I2C Temperature and Humidity Sensor

Introduction

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The SHT30 is a temperature and humidity sensor that communicates over the I2C bus. Typical accuracy for temperature is +- 0.1 °C and +- 1.5% relative humidity. Sensirion, the company behind the SHT30 supplies a series of documents including the data sheet, several application notes and sample code, written in C for the STM32F10x micro-controller. You can find them at https://www.sensirion.com/en/download-center/humidity-sensors/digital-humidity-sensors-for-various-applications.

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The SHT30 is a temperature and humidity sensor that communicates over the I2C bus. Typical accuracy for temperature is +- 0.1 °C and +- 1.5% relative humidity. Sensirion, the company behind the SHT30 supplies a series of documents including the data sheet, several application notes and sample code, written in C for the STM32F10x micro-controller. You can find them at
https://www.sensirion.com/products/catalog/SHT30-DIS-B

There is also a SHT30 driver written for MicroPython on the ESP8266

but unfortunately it did not work on the ESP32 out of the box. Making it work for the ESP32 is not too difficult however. This is the subject of an exercise on the SHT30 ( The I2C bus and the SHT30 Temperature and Humidity Sensor ). Since the SHT30 driver only implements a small subset of the SHT30 functionality, I developed a driver called SHT3X translating the Sensirion code into MicroPython and taking over some of the SHT30 code.

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Here you find the driver itself:

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https://afnog.iotworkshop.africa/pub/IoT_Course_English/SHT30NopI2CTemperatureAndHumiditySensor/sht3x.py.txt

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https://afnog.iotworkshop.africa/pub/IoT_Course_English/SHT30NopI2CTemperatureAndHumiditySensor/sht3x.py.txt

and here some test code exercising the driver:

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https://afnog.iotworkshop.africa/pub/IoT_Course_English/SHT30NopI2CTemperatureAndHumiditySensor/sht3xTest.py.txt

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https://afnog.iotworkshop.africa/pub/IoT_Course_English/SHT30NopI2CTemperatureAndHumiditySensor/sht3xTest.py.txt

And here is the result printed out by the test program:

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Comments

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