This is a port of https://github.com/DFRobot/DFRobot_AHT20 for Micropython on the Raspberry Pico.

The AHT20 temperature & humidity sensor employs digital output and I2C interface, through which users can read the measured temperature and humidity. Based on the AHT20 chip, it offers the following features:

• Collect ambient temperature, unit Celsius (℃), range -40-85℃, resolution: 0.01, error: ±0.3-±1.6 ℃
• Collect ambient relative humidity, unit: %RH, range 0-100%RH, resolution 0.024%RH, error: when the temprature is 25 ℃, error range is ±2-±5%RH
• Use I2C interface, I2C address default to be 0x38
• uA level sensor, the measured value is up to 200uA.
• Power supply range 3.3-5V

Connect the DFRobot AHT20 as follows:

• VCC to 3V3
• GND to GND
• SCL to GP17
• SDA to GP16

Using e.g. Thonny, upload DFRobot_AHT20.py and main.py onto the Raspberry Pico. Run main.py.