M5Stack HEART Unit (AD8232)
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
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.



