According to Microchip Technology Inc.’s datasheet, MCP9808 digital temperature sensor chip converts temperatures between -20°C and +100°C to a digital word with ±0.25°C/±0.5°C (typical/maximum) ...

The hardware is consists of an Arduino microcontroller (here an Arduino Uno R3) and a pre-wired soil moisture sensor module. The soil moisture sensor module , built around the LM393 comparator, gives ...