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M5Stack HEART Unit (AD8232)

M5Stack HEART Unit (AD8232)

MPN: M034
M5Stack Technology Co., Ltd.
AD8232, AD7476, AD8603 Heart Rate Sensor M5Stack Platform Evaluation Expansion Board
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Overview

The M034 is an ECG heart rate monitoring unit designed for the M5Stack ecosystem, featuring the AD8232 high-performance heart rate monitor front-end. It integrates an AD7476 10-bit ADC and an AD8603 ultra-precision op-amp to provide high-gain signal conditioning with a gain of 100 and effective DC blocking for clean bioelectric signal acquisition.

Why Choose This Part

This module provides a fully isolated design between the front-end and digital interface to enhance safety and signal quality. It simplifies complex ECG circuitry by combining a high-gain analog front-end with an onboard 10-bit ADC, delivering processed data over a standard UART interface.

Applications

Portable ECG Monitors
Ideal for developing handheld electrocardiogram devices that require integrated signal conditioning and digital output.
Exercise Trackers
Used in fitness equipment to monitor heart rate statistics during physical activity while maintaining high signal integrity.
Bioelectric Research
A practical tool for prototyping medical instrumentation and studying physiological signals in a non-diagnostic environment.

Getting Started

Connect the M034 to an M5Stack Core via the Grove-compatible cable to interface over UART at 5V logic levels. Use the provided M5Stack Arduino or UIFlow libraries to read the 10-bit heart rate data and visualize waveforms on the integrated display.