Based on ESP32 Internet of Things, this Smart Farm Kit integrates multiple sensors, realizing automatic and wireless manipulation as well as intellectual management. In this tutorial, our projects comprehensively apply all sensors and modules in the kit, like photoresistor, soil humidity sensor, water level sensor and ESP32 wireless communication module. As a result, by learning this tutorial, you can possess the knowledge that how to use sensors and construct IOT system and that how to realize intelligence in farm management through programming.