RPI_OLED_StatusMonitor is a python script to update the OLED Display Module - SH1106 with Raspberry Pi 4 system status such as CPU & RAM utilisation, CPU Frequency, CPU Temperature and also the current weather. The script also controls a 5V cooling fan connected to the Pi based on the tempertature. The fan is connected to the collector of 2N2222 NPN transistor and the Pis 5V pin, the emitter is connected to the ground pin of Pi. The GPIO 17 is connected to the base of the transistor via a 1K resistor so as to switch the transistor ON and OFF to finally turn the fan ON and OFF [Circuit diagram shown below]. The OLED Display Module is connected to the I2C interface of the Raspberry Pi and uses Luma.OLED driver for the communication.
- CPU & RAM utilisation, CPU Frequency - psutil
- CPU Temperature - Internal vcgencmd tool
- Weather - pyowm (Requires a valid API key to allow responses from Openweathermap and the key should be placed in
./owm_api_key.txtfile)
sudo -H pip3 install --upgrade luma.oled
luma.oled uses hardware interfaces that require permission to access. After you have successfully installed luma.oled you may want to add the user account that your luma.oled program will run as to the groups that grant access to these interfaces.:
sudo usermod -a -G spi,gpio,i2c pi
pip3 install psutil
pip3 install pyowm
