README.md

🌡 Raspberry Pi Thermometer

🕑 Changelog 🎁 Acknowledgements 🇵🇱 Polish version of README

ℹ️ About

Available sensors

• DS18B20 (temperature)
• DHT11 (humidity)

Available functions

• Measure current temperature and humidity
• Save temperature and humidity to database
• Simple website with current readings

👨‍💻 Installation

1. Connect the DS18B20 and DHT11 sensors to the Raspberry Pi.

2. Clone repository

   git clone https://github.com/bartekl1/rpi-thermometer
   cd rpi-thermometer

3. Create database and import structure from thermometer.sql file.

4. Create configuration file named configs.json with the following content.

   {
       "host": "0.0.0.0",
       "mysql_user": "<mysql_user>",
       "mysql_password": "<mysql_password>",
       "mysql_database": "<mysql_database>"
   }

   Replace <mysql_user>, <mysql_password> and <mysql_database> with correct credentials.

5. Install PIP dependencies.

   pip install -r requirements.txt

6. Create /etc/systemd/system/thermometer.service file with the following content.

   [Unit]
   Description=Thermometer
   After=network.target
   
   [Service]
   WorkingDirectory=<PATH>
   ExecStart=/usr/bin/python3 <PATH>/app.py
   Restart=always
   User=<USERNAME>
   
   [Install]
   WantedBy=multi-user.target

   Replace <PATH> with path to the cloned repository and <USERNAME> with your system username.

7. Start and enable created service.

   sudo systemctl start thermometer
   sudo systemctl enable thermometer

8. Add following line to crontab (edit using crontab -e).

   */10 * * * * cd "<PATH>" && python3 save_to_database.py
   

   Replace <PATH> with path to the cloned repository. You can edit cron expression to change frequency.