OpenAirScope 🌍💨

OpenAirScope is an open-source hardware and software project designed for advanced environmental monitoring and air quality measurement. It is based on the STM32H743 and ESP32-C3, supports LoRaWAN, and is equipped with a wide range of up-to-date sensors and display options.

Features

***High-Performance MCU:

-STM32H743 (ARM Cortex-M7, 400 MHz)

-Capable of running advanced algorithms and real-time data processing

-Multiple communication interfaces (I²C, SPI, UART, CAN, USB, RS485)

***Wireless Communication:

-ESP32-C3-WROOM-02 → Wi-Fi + Bluetooth LE

-RAK3172 (LoRaWAN) → Low-power, long-range wireless communication

-External SMA antenna connector (for LoRa)

***Sensor Support (Optional/Modular):

-SGP41-D-R4 → Gas sensor (VOC and NOx measurement)

-SCD40-D-R2 → CO₂, temperature, and humidity sensor

-SPS30 → Particulate matter sensor (PM1.0, PM2.5, PM4, PM10)

-LTR-303ALS-01 (Optional) → Ambient light sensor

-SPH0645LM4H-B (2 units) → Digital MEMS microphone (ambient noise, sound level, acoustic analysis)

*Expandable design: additional sensors such as pressure or UV can be integrated

***Display:

-1.5-inch RGB OLED Display Module

-65K RGB colors, 128×128 resolution

-SPI interface for fast graphics and real-time data visualization

***Power Management:

-Li-Ion battery support

-USB-powered with simultaneous battery charging

-Suitable for both portable and stationary applications

***Flexible Communication:

-USB-C interface

-RS485 (for industrial environments)

-CAN-Bus support

-IoT integration via Wi-Fi and LoRaWAN

***Modular Design:

-Optional sensor add/remove capability

-External SMA antenna for long-range connectivity

-Developer-friendly accessible pinout

***Use Cases

-Smart city solutions

-Industrial environment monitoring

-Indoor/outdoor air quality tracking

-Noise pollution and sound analysis

-Portable IoT devices with OLED display

-Long-range LoRaWAN field applications

-Research and education projects

CRITICAL WARNING: This PCB design is currently an experimental, unverified prototype (AS-IS). I have not yet manufactured or functionally tested this version. Proceeding with production carries a high risk of failure and is undertaken solely at your own risk.