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Update GPIO-examples.md

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@ -68,9 +68,6 @@ See the [kernel guide](https://www.kernel.org/doc/html/latest/driver-api/pwm.htm
**Working**: I have read temperature, pressure and humidity from a BME280 sensor connected to pins `3` and `5`, and output that to a OLED display on the same bus. See the python example below.
Install `i2c-tools` and add your user to the `i2c` group to access the device nodes.
The following is a python based demo that uses [`pypi:bme280`](https://pypi.org/project/bme280/)
* I am using a [virtual environment](https://docs.python.org/3/tutorial/venv.html), rather than installing the python libraries globally.
```console
$ sudo apt install i2c-tools
$ sudo usermod -a -G i2c <username>
@ -111,7 +108,8 @@ The following is a demo of using I2C to read data from a BME280 Temperature, Hum
- It will be expanded with lgpio PWM and pin input/interrupt code later.
- All the install steps here (both `apt` and `pip`) are tediously slow on the MQ Pro.
For the demo we need to install some dependencies, and then I use a virtualenv to install the python libraries:
For the demo we need to install some dependencies via `apt`.
* I am using a [virtual environment](https://docs.python.org/3/tutorial/venv.html), rather than installing the python libraries globally.
```bash
# Dependencies needed by pip install.
$ sudo apt install python3-venv python3-dev python3-lgpio libjpeg-dev liblgpio-dev build-essential