If you followed instructions on how to connect One Wire DS18B20 to Raspberry pi gpio then next step would be how to take temperature readings from DS18B20 One Wire digital temperature sensor and store these readings to MySQL/MariaDB database. As you may know that each DS18B20  One Wire digital temperature sensor has a unique 64-bit serial number wonderful part that we can have more then one DS18B20 One Wire digital temperature sensor connected to same 1-Wire bus. Check out PiHome…