Real-time multisensor room monitor on STM32 with FreeRTOS

Phoebien Canete built a room monitoring system for the STM32 Blue Pill, running FreeRTOS and simulated in Wokwi. It reads temperature and humidity from a DHT22, light level from a photoresistor, and motion from a PIR sensor. An SSD1306 OLED shows one of four pages, and a rotary encoder switches…

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