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microDriver - SHT2X


MicroBit driver for SHT20, SHT21, SHT25 digital sensor, enabliing the the microbit to obtain temperature or relative humidity from these sensors. The driver comes in both C++ library and a makecode package for use on the Makecode Microbit Editor.

Setup

  1. Library Version
    • Include driver_sht2x.h for the defintions.
    • Compile you program with driver_sht2x.c.
  2. Makecode Version
    • Navigate to Add Package and enter this repository's URL.
    • Select this package from the results.

Usage

First ensure that the sensor is connected properly to the MicroBit's I2c pins. Or the driver will complain with a Microbit panic.

This package/library provides:

  1. read_temperature() - Read ambient tempreture
    • reads the temperature from the sensor.
    • returns the tempreture as an integer in degree celsius
  2. read_humidity() - - Read ambient relative humidity
    • reads the relative humidity from the sensor.
    • returns the relative humidity in as a integer percentage.
  3. set_i2c_address - Change the i2c address used to address the sensor. By default this is set to 0x40.

Troubleshooting

  1. MicroBit panics (displays a frowning face) with an error code of 80.
    • The driver was unable to read from the sensor. Check whether the sensor is connected properly.
    • If the sensor is connected properly, the driver is still unable to detect the sensor, try changing the i2c adddress using set_i2c_address()

License

MIT

Supported targets

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