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1. OpenAirScope OpenAirScope Public

   Open-source air quality and environmental monitoring node with STM32H743 + ESP32-C3, LoRaWAN, RS485, USB-C, Li-ion charging, and multi-sensor support.

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2. uPIC46 uPIC46 Public

   PIC18F46K22-based versatile development board with CAN, RS-485, EEPROM, RTC, and user LEDs

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