ANAVI Gardening uHAT is an open-source Raspberry Pi add-on board designed for smart gardening applications. It supports multiple sensors, including capacitive soil moisture sensors, waterproof temperature sensors, and I²C sensors for humidity, light, and barometric pressure. The board features plug-and-play slots, GPIO pins for controlling irrigation systems, and a Microchip MCP3002 analog-to-digital converter. Compatible with any Raspberry Pi model featuring a 40-pin header, it facilitates easy setup without soldering.