🚀 EdgeSense C6: Ultra-Compact IoT Sensor Node

What happens when you cram advanced audio, motion, and environmental sensing into a tiny 26x26mm footprint?

EdgeSense C6 is a premium, highly miniaturized IoT edge node engineered for smart home integrations, machine condition monitoring, and acoustic event detection. Designed by MicroCore Electronics, the goal behind this project was to utilize high-end, proven components and squeeze them into a minimal area without compromising capabilities, power efficiency, or signal quality.

🛠️ Hardware Specifications & Features

This board features a robust power architecture and advanced sensing capabilities:

Brain & Connectivity: Powered by the ESP32-C6-MINI-1 module, delivering Wi-Fi 6, Bluetooth 5 (LE), and Zigbee/Thread capabilities for seamless smart home integration (e.g., Home Assistant).

Acoustic Sensing: Features the MSM261DDB019 digital MEMS Microphone (I2S/PDM) for clean, high-fidelity audio capture and voice-edge processing.

Precise Motion Tracking: Integrates the BMA456 advanced 3-axis digital accelerometer, perfect for vibration detection, tap sensing, and spatial orientation.

Environmental Data: Includes the TMP118 high-accuracy I2C temperature sensor for localized climate and thermal monitoring.

Premium Power Management:

Smart Li-Ion battery charging via the BQ24232 IC with dynamic power-path management.

A highly efficient TPS63021 Buck/Boost converter, ensuring a rock-solid 3.3V rail for the RF and sensors, even as battery voltage drops.

Physical Design: Ultra-dense 26x26mm layout, Type-C USB with onboard ESD protection (RCLAMP0512), and physical BOOT/EN switches.

💡 Applications

Smart Home Sensors (Presence, Temperature, Noise level)

Industrial IoT (Motor vibration monitoring)

Edge AI & TinyML (Acoustic event detection like glass breaking or alarms)

Wearables & Miniaturized tracking devices

🔧 Manufacturing Notes

This board was designed out of a pure passion for hardware and advanced PCB routing challenges. It utilizes a highly dense component layout. When ordering via PCBWay PCBA, ensure you select the appropriate surface finish (ENIG recommended for the fine-pitch components). The trace-routed "M" signature logo on the board represents the designer's mark.

🌐 About MicroCore Electronics

Designed by Michael for electronics enthusiasts, hackers, and engineers who want a powerful, open-source hardware node to manufacture and bring to life.

Want to modify the design or view the full Altium source files? Get them here -

https://microcoremike.gumroad.com/l/xxdwv?_gl=1*8gkz38*_ga*MTcwMDUzNzU4NC4xNzcxNzY5MzU5*_ga_6LJN6D94N6*czE3NzE3NjkzNTkkbzEkZzEkdDE3NzE3NzMzNzYkajM3JGwwJGgw

Website: microcoreelectronics.com

Email: michael@microcoreelectronics.com

Source Files: Available on our GitHub repository.