Skip to content
Breakout board for the Maxim MAX3003 single-channel ECG AFE
Branch: master
Clone or download
Latest commit e141d22 Mar 4, 2019
Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
docs Updated readme and images Apr 19, 2018
hardware Added later hardware revisions Nov 15, 2018
software Reduced the sampling rate to 128 and commented fclock generation code Sep 14, 2018
.DS_Store Added later hardware revisions Nov 15, 2018
LICENSE.md Updated License Mar 18, 2017
README.md Update README.md Mar 4, 2019

README.md

ProtoCentral MAX30003 Single-lead ECG Breakout Board

ProtoCentral MAX30003 Single-channel ECG breakout

If you dont already have one, you can buy ProtoCentral MAX30003 breakout here.

MAX30003 is a single-lead ECG monitoring IC which has built-in R-R detection and several other features that make it perfect for a wearable single-lead ECG application.

Several new features on this chip make it ideal for wearable applications. First is the low power consumption - just 85 uW of power and can work from 1.1 V onwards ! Also of interest is the fact that it can work with only two chest electrodes without the need for a third right-leg drive (DRL) electrode.

The best feature of this chip though is the built-in R-R detection algorithm which can measure the time between successive peaks of the QRS complex of the ECG. This means that heart-computation comes right out of the box without any microcontroller-side code requirement. Heart-rate computation just got a lot easier !!

Features

  • MAX30003 IC on-board
  • Single-lead ECG monitoring
  • R-R peak detection for heart rate computation
  • High DC Offset range
  • Heart Rate computation using Pan-Tompkins algorithm
  • On-board level translator for 5V-tolerant operation
  • On-board low-noise 1.8V and 3.3V voltage regulator

What's included

  • ProtoCentral MAX30003 Breakout board
  • Straight pin headers
  • 2-electrode ECG connector with stereo connector
  • 10x disposable ECG stick-on electrodes

Repository Contents

  • /software - Arduino library and example sketches.
  • /hardware - All Eagle hardware design files
  • /docs - additional documentation

Wiring the board to your Arduino

If you have bought the breakout the connection with the Arduino board is as follows:

MAX30003 pin label Arduino Connection Pin Function
MISO D12 Slave out
MOSI D11 Slave in
SCK D13 Serial clock
CS0 D7 Slave select
FCLK NC External clock(32KHz)
INT1 NC Interrupt
INT2 NC Interrupt
3V3 Supply Board which supports 3.3V and 1.8V
VCC Supply 5V 5V
GND Gnd

Running the Arduino Sketch

If you have correctly installed the libraries, the example sketeches should now be available from within Arduino.

Download the Arduino Sketch here for this board here.

Open up your Arduino IDE and run the Arudino sketch (.ino) file in the archive that you downloaded. Your Arduino should now be programmed to read the ecg data and sending over the USB-UART.

Using the ProtoCentral MAX30003 GUI

The GUI for visulizing the ECG data as well as parameters like R-R interval and Heartrate is written in Processing, based on Java and is cross-compilable across platforms.

Java 8 is required on all platforms for running the processing-based GUI application. You can download Java for your platform from the following link.

https://java.com/en/download/

Processing GUI Installation

Download the zip file containing the executable files from the following links for 32-bit/64-bit Windows. If you do not know if you have a 64-bit or 32-bit computer, please download the 32-bit version.

Simply download the appropriate file for your operating system, unzip the contents and run the executable program contained in it.

Select the port to which your Arduino is connected to from the "Select Port" dropdown box and data should immedaitely start coming in.

ProtoCentral MAX30003 Single-channel ECG breakout

Connecting the ECG Electrodes

A 2-electrode cable along with a standard stereo jack is provided along with the shield to connect the electrodes to the board. The electrode input connector is highlighted in the below picture.

The other side of the electrode connector would connect to snap-on electrodes attached to the body. For testing purposes, you can use an ECG simulator to provide inputs to the board.

Warning: When connecting the electodes to the body, it is safer to disconnect the mains power source to the Arduino. For example, if you are using the Arduino along with a laptop, disconnecting the battery charger from the laptop would be a safe option.

Placing the Electrodes on the body

Wearing the Electrode

License Information

This product is open source! Both, our hardware and software are open source and licensed under the following licenses:

Hardware

All hardware is released under Creative Commons Share-alike 4.0 International. CC-BY-SA-4.0

You are free to:

  • Share — copy and redistribute the material in any medium or format
  • Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms.

Under the following terms:

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.

Software

All software is released under the MIT License(http://opensource.org/licenses/MIT).

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Please check LICENSE.md for detailed license descriptions.

You can’t perform that action at this time.