Read SHTC3 Data

This section describes how to use VisionFive 2 or VisionFive 2 Lite's I2C to read SHTC3 data through an example program with Python.

Hardware Setup

Connect Sense HAT to the 40-pin header as follows.

Figure 1. Connect Sense Hat (B) to the 40-Pin GPIO Header


Sense HAT (B)	40-Pin GPIO Header
Sense HAT (B)	Pin Number	Pin Name
3V3	1	3.3V Power
GND	9	GND
SDA	3	GPIO58 (I2C SDA)
SCL	5	GPIO57 (I2C SCL)

Run Demo Code

Perform the following steps on Debian of VisionFive 2 or VisionFive 2 Lite.

Locate the directory where the test code, I2C_Sense_Hat.py, exists.
1. Source into the PYthon3 Virtual Environment.
```
source ./myvenv/bin/activate
```
2. Install the dependency.
```
python3 -m pip install pillow
```
3. Get the directory where VisionFive.gpio exists.
```
python3 -m pip show VisionFive.gpio
```
  Note: The output depends on how the application is installed.
4. Enter the VisionFive.gpio directory.
```
cd <VisionFive.gpio directory>
```
5. Enter the sample-code directory.
```
cd ./VisionFive/sample-code/
```

Under the sample-code directory, execute the following command to run the demo code.

sudo python I2C_Sense_Hat.py

Alternatively, you can also run the following command.

sudo python3 I2C_Sense_Hat.py

The temperature and humidity data are displayed as follows.

[riscv@fedora-starfive sample-code]$ sudo python3 I2C_Sense_Hat.py
i2c_dev: /dev/i2c-1
Temperature = 27.85°C , Humidity = 56.59 %

Temperature = 27.83°C , Humidity = 56.60 %

Temperature = 27.85°C , Humidity = 56.61 %

Temperature = 27.86°C , Humidity = 56.60 %

Temperature = 27.86°C , Humidity = 56.60 %

Temperature = 27.80°C , Humidity = 56.60 %

Temperature = 27.87°C , Humidity = 56.60 %

Note: For details about the source code, see

(Optional) Exit the Python3 Virtual Environment.
```
deactivate
```