SLAA486B January 2011 – June 2019 MSP430G2452
This application report describes a low-cost heart-rate monitor solution based on the MSP430G2 LaunchPad™ Development Kit, which supports the MSP430G2xx microcontrollers (MCUs). A daughterboard amplifies and filters the electrocardiogram (EKG) signal before it is sent to the MCU for sampling and processing. The heartbeat-per-minute data is sent to the PC by means of the back-channel UART-over-USB available on the LaunchPad kit. Additionally, an eZ430 radio frequency (RF) target can be connected to the six-pin header on the daughterboard to transmit data wirelessly using the SimpliciTI™ network protocol. The system can be powered by universal serial bus (USB) power, a CR2032 3-V coin cell, or two AA or AAA batteries.
The application presented here is for reference design purposes only and is not intended for any life-saving or medical-monitoring use.
Project collateral and source code discussed in this application report can be downloaded from http://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/EKG-Based-Heart-Rate-Monitor/1_00_00_00/index_FDS.html.