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Grove - Finger-clip Heart Rate Sensor

SeeedGrove - Finger-clip Heart Rate Sensor

MPN: 103020024
Seeed Technology Co., Ltd
PAH8001EI-2G, STM32F103 Heart Rate Sensor Grove Platform Evaluation Expansion Board
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Overview

The 103020024 is a Grove-compatible evaluation board featuring the PixArt PAH8001EI-2G optical heart rate sensor paired with an STM32F103 microcontroller. This finger-clip module uses PPG (Photoplethysmography) technology to detect heart rate by measuring blood volume changes through a green LED and CMOS sensor. It processes raw data on-board and outputs processed heart rate data via a simplified I2C interface.

Why Choose This Part

The integrated STM32F103 handles the complex optical signal processing internally, reducing the computational load on the host controller. The finger-clip form factor provides a stable mechanical interface for consistent skin contact, while the Grove connector enables plug-and-play connectivity with Arduino and Raspberry Pi platforms.

Applications

Wearable Prototyping
Rapidly test heart rate monitoring algorithms for fitness bands and sports watches.
IoT Health Monitors
Integrate pulse rate tracking into remote patient monitoring systems using the Grove ecosystem.
Exercise Equipment
Add biometric feedback to gym equipment consoles or ergonomic handles.

Key Specifications

Type Sensor
Contents Board(s), Cable(s)
Function Heart Rate
Platform Grove
Utilized IC / Part PAH8001EI-2G, STM32F103

Getting Started

Connect the module to a Grove-compatible base shield and use the provided Seeed Studio Arduino libraries to begin reading heart rate data. Ensure the sensor is powered at 3.3V and use the I2C interface for communication. The on-board SWD pins allow advanced users to re-program the STM32F103 if custom firmware is required.

Also Consider

MAXREFDES117# Heart Rate Sensor Maxim Integrated - An ultra-compact I2C module using the MAX30102 for both heart rate and SpO2 monitoring.