AD8232 Board

AD8232_Board

AD8232 Mini ECG Breakout Board

A compact, production-ready ECG front-end built around the AD8232, designed for seamless integration into wearable and embedded systems.

Small in size, deliberate in design, and ready to manufacture.

Overview

This project implements a highly miniaturised ECG acquisition circuit with a footprint of just 25mm × 17.7mm. It is engineered for space-constrained applications where traditional breakout boards fall short. Unlike conventional AD8232 modules, this design eliminates the bulky 3.5mm audio jack, enabling direct electrode interfacing and tighter system integration. The result is a clean, flexible, and deployment-ready biosignal front-end.

Features

• Ultra-compact PCB (25mm × 17.7mm)
• Based on the AD8232 analog front-end for ECG signal conditioning
• Direct electrode interface (no audio jack) for reduced size and flexibility
• Carefully designed layout for low-noise signal acquisition
• Manufacturing-ready with full fabrication and assembly files

Repository Contents

This repository provides a complete, production-ready hardware package:

1. Schematic
2. PCB Layout: Optimised layout focused on compactness.
3. Footprints: All components mapped to manufacturable, assembly-ready footprints.
4. Gerber Files: Fabrication files ready for immediate PCB manufacturing.
5. BOM (JLC Format): Bill of Materials.
6. CPL File: Pick-and-place file for automated component assembly.

Getting Started

1. Review the schematic to understand the circuit design
2. Open the PCB layout in KiCad to inspect routing and placement
3. Use the Gerber files to order your PCB
4. Upload the BOM and CPL files to JLCPCB (or similar) for assembly

Once assembled, the board can be interfaced with a microcontroller ADC for signal capture and processing.

Applications

• Wearable health monitoring devices
• Embedded ECG systems
• Biomedical research prototypes
• Low-power biosignal acquisition platforms

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Disclaimer This design is intended for research and development purposes only. It is not certified for medical or clinical use. This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Contributions and improvements are welcome. Feel free to open an issue or submit a pull request.

Designed and developed by Ekenedirichukwu Obianom.