Once we laid eyes on the MAX30003 single-lead ECG monitoring chip from Maxim, we were excited to make heart-rate variability available at a much lower cost that "Professional" patches. This led to development of the MAX30003 single-lead ECG monitor breakout board from ProtoCentral.
One thing led to another and here we are with HeartyPatch, a single-lead ECG and R-R intervals/heart-rate monitoring patch. ECG "patches" have long been a dream and a real need for cardiac risk assessment as well as for high-accuracy fitness and health monitoring.
Chest-based ECG has always been the standard for measurement of ECG, especially R-R intervals and HRV. Although optical sensors are available for HR measurement, their accuracy is questionable.
HeartyPatch is completely open-source projects with all schematics, layout, firmware and application software that will be made available for download from the links given further down in this page.
- Single-lead ECG with two electrodes
- On-board connectors for standard disposable electrodes (eliminates the risk of using custom pads).
- On-board human body temperature sensor (touching the skin)
- On-board 3-axis accelerometer for position assist and fall/movement detection
- Uses ESP32 WiFi/BLE SoC
- Use case for BLE: In a fitness application, data is continuously sent to a the user's smartphone and then optionally to a cloud
- Use case for WiFi: In a home-based monitoring set-up, data is sent to a cloud using WiFi
- Li-Ion battery and charging system on the board
All hardware, software, firmware and all other material will be made available open-source once we have some stable code and hardware platform.