BME680 CJMCU-680 digital temperature humidity pressure and gas sensor development board for high altitude applications Compact development board combining a multi-parameter environmental sensor with an easy to use breakout layout. Measures temperature, relative humidity, barometric pressure and gas sensor response in one module, making it easy to add environmental and altitude awareness to electronic projects. Key benefits - All-in-one sensing: temperature, humidity, pressure and gas sensing on a single module removes the need to combine multiple components and simplifies wiring and calibration. - Fast integration: CJMCU-680 breakout format exposes standard digital interface pins for direct connection to common microcontroller and single board computer platforms, reducing prototyping time. - High-altitude capable: barometric pressure data can be used for altitude estimation, suitable for applications that require elevation awareness. - Small and robust: compact PCB footprint and breakout pads streamline mounting and integration in enclosures or custom PCBs. - Practical performance: provides reliable environmental readings for indoor and outdoor monitoring, with stable output for trend analysis and control systems. What it does - Reads ambient temperature and relative humidity to support climate monitoring and control. - Measures barometric pressure for weather sensing and altitude estimation. - Detects gas-related changes in air composition to support general indoor air quality assessment. - Outputs digital data suitable for logging, display, or closed-loop control. Compatibility and interfaces - Designed as a CJMCU-680 breakout board paired with the BME680 sensor model name, consistent with commonly used development workflows. - Works with platforms that support standard digital sensor interfaces, enabling easy connection to microcontrollers and development systems without specialized hardware. - Compact breakout pads allow soldering to wires, headers, or integration into custom circuits. Physical and material attributes - Breakout board form factor for straightforward prototyping and mounting. - Durable PCB construction suited for repeated handling during development. - Sensor orientation and pin labeling on the board simplify wiring and reduce integration errors. Practical use scenarios - Indoor air quality monitor: build a compact device to track temperature, humidity and air quality trends for smart home or office environments, and feed data to local displays or logging systems. - Portable weather and altitude logger: use barometric pressure and temperature readings to record environmental conditions on hikes, weather stations, or aerial platforms that require compact, lightweight sensing. - HVAC and environmental control: integrate the module into ventilation or climate control prototypes to provide real-time feedback for automated adjustments. Why choose this module - Combines multiple environmental measurements in one small development board for faster prototyping and cleaner designs. - Suitable for sensor fusion, logging, and control tasks where space and wiring simplicity matter. - Clear breakout layout and standard digital outputs reduce integration time and debugging. What you get - CJMCU-680 development board populated with the BME680 sensor die, ready for wiring to your project and initial testing. - A compact, multi-function sensing solution for environmental monitoring and altitude-aware applications. This module is intended for development, prototyping, and integration into electronic systems and provides a compact way to add temperature, humidity, pressure and gas sensing to your projects.