Design of a Smart Agricultural Greenhouse Environmental Control System Based on STM32
A smart agricultural greenhouse environmental control system built on the STM32F103C8T6: DHT11 and BH1750 sample temperature, humidity and light, five hysteresis-based automatic rules drive the fan, heater, humidifier and grow light, and two configurable timing windows support overnight spans. Thresholds are persisted with CRC16 protection, while an ESP12F exposes an HTTP+JSON API paired with a React Native mobile app.