Performance Update v1.1

Firmware Changes:

• Tweaked the Heart-rate algorithm to better handle movement artifacts
• Adjusted the FIR filter coefficients for improved SNR
• Respiration rate is now more stable with a new algorithm
• SpO2 performance improvement

GUI Changes:

• Added lead-error messages display if lead-off condition is detected
• Added drop-down list to select serial port if running the GUI on a PC/Mac/Linux(Desktop) platform. Raspberry Pi port remains unchanged.

To install the new firmware, please check out new Firmware upgrade document

To install the new GUI on a Raspberry Pi, simply run the same script to upgrade. In the terminal window, type the following lines.

curl -sS http://pi.protocentral.com/hpi3.sh | sudo bash

For other platforms, simply download the corresponding zip files containing the binaries.