Movesense - ECG and Movement data

Overview

fitness_dashboard now supports capturing both ECG and Movement data from the Movesense Heart Rate monitor.

With custom firmware the Movesense implements three services:

• GATT Heart Rate Measurement
• ECG Voltage
• Movement Data

All three services can be independently enabled.

GATT Custom Firmware

Custom firmware for the Movesense is available here

Installing the firmware is straight forward using the Movesense Showcase App available for IOS and Android.

Reverting to the standard firmware is also easy. It takes about 2-3 minutes to change firmware once you have the app installed and the firmware downloaded.

Complete instructions are in the README in the git archive.

ECG

ECG data can be sampled at an of the following measurement intervals

• 500 Hz
• 250 Hz
• 125 Hz
• 100 Hz

fitness_dashboard saves the data into the workout FIT file and into an activity CSV file.

time,ecg_mv,ecg_ms,ecg_hz
12:40:47,-200,203079,8
12:40:47,-197,,
12:40:47,-197,,
12:40:47,-193,,
12:40:47,-168,,
12:40:47,-178,,
12:40:47,-190,,
12:40:47,-195,,
12:40:47,-194,,
12:40:47,-193,,
12:40:47,-194,,
12:40:47,-197,,
12:40:47,-200,,
12:40:47,-205,,
12:40:47,-212,,
12:40:47,-217,,
12:40:48,-219,203207,
12:40:48,-205,,
12:40:48,-195,,

Movement

Movement data includes acceleration, gyroscope and magnetometer data.

These measurement intervals can be selected:

• 208 Hz
• 104 Hz
• 52 Hz
• 26 Hz

The data is stored in an activity file.