Components used for the kit: Wemos board & DT11 - https://www.aliexpress.com/item/WeMos-D1-mini-DHT-Shield/32631775772.html Relay - http://www.banggood.com/DC-5V-1CH-Relay-Shield-V2-Version-2-For-WEMOS-D1-Mini-ESP8266-WiFi-Module-p-1102379.html Water pump - https://www.aliexpress.com/item/For-PC-Small-Water-Pump-USB-DC-5V-Brushless-Water-Cooling-Cooler/32657431673.html HC-SR04 Ultrasonic Module Distance Measuring - http://www.banggood.com/HC-SR04-Ultrasonic-Module-Distance-Measuring-Transducer-Sensor-With-Mount-Bracket-p-1029445.html Soil Hygrometer - http://www.banggood.com/Soil-Hygrometer-Humidity-Detection-Module-Moisture-Sensor-For-Arduino-p-79227.html
When the components arrive, i will provide improvements for mine use starting by this nice and simple projec. Code for self irrigation of a plant using arduino kit created peterosullivan (https://gist.github.com/peterosullivan), who i give all credits.