FAQ


  • UPDATE PROTOTYPE TO A NEWER VERSION
  • First download firmware file, you can find them here
    1. Press advanced menu (circle button at the right bottom) see picture here
    2. Press "Config device"
    3. Press "Update device".(Note: make sure that USB is connected)
    4. Then comes beep signal. Wait 5-30 seconds and should appear AutoPlay screen. Open folder to view files.
    5. Remove existing file that is "firmware.bin" and copy/paste new .bin file.
    6. Reset prototype (press button at the bottom of the prototype, use pen-core or something that can fit into button hole). After few seconds you should get beep signal meaning that new application is starting.
  • I DID NOT RECEIVED MY HRW PROTOTYPE
  • There are following reasons:
    Provided bad shipping address and the package have been returned to the sender
    Forgot to add shipping costs, package is not shipped yet
    Contact us if you not received HRW prototype
  • WHAT DOES LED BLINKING MEAN?
  • Middle led shows operation modes. During normal operation middle-yellow led is blinking in a short time intervals. If error occurs it starts blinking fast.
  • HOW READ AN ERROR?
  • Go to advanced meniu and press "Config device", then press "Error Log".
  • HOW PROTOTYPE IS TURNED ON/OFF?
  • Prototype turns ON: then there is movement and PPG cable pluged in
    Prototype turns OFF: then no movement in 60 or more seconds and PPG cable is removed
    Other conditions: Never turns OFF then USB powered. To turn it off reset device and remove USB and PPG cables
  • HOW DEVICE IS CHARGED?
  • Device is charged over standard micro USB cable in the same way as many popular Smartphones found in the market. In every package we enclose one micro USB cable.
  • WHAT DESKTOP OPERATING SYSTEMS SUPPORTED?
  • Works with WinXP/Win7/(Win8).
  • HOW ARE DATA SEND?
  • So far device can store data internally (into microSD card) and data file used to assess heart risk. Prototype as well can send data over Bluetooth in a real time. Risk estimation in a real time will be possible in a newer versions.
  • CONNECTING TO BLUETOOTH
  • Bluetooth device configuration:
    Device name: Heart_Risk_Warner
    Password (pairing code): 1234
    Connect to Bluetooth for the first time requires to find Heart Risk Warner device. Once you find it you need to pair it, by default pairing code is 1234. After successful pairing enter COMPORT to HRW application and press 'Save'. (see picture)
    'Auto pair' function does it automatically. It worked with Windows 7 and not fully tested on other platforms.
    Also here is a short manual how to connect Bluetooth device on Windows 7 good PPG signals
  • PROBLEMS WITH PPG SENSOR
  • There were observed problems related to wrong PPG sensor attachments. For example too tightly attached sensor squeezes up finger by disrupting blood flow circulation, or too loose connection brings difficulties to detect blood circulation at all. Which resulting to inaccurate signal and leading to wrong parameter estimation. To obtain the best results first requires to adjust PPG sensor. Picture summarizes different signal wave forms which belongs to a good and wrong sensor attachments. To adjust PPG sensor for the first time, connect to Bluetooth and find the position that brings correct wave form.
  • CAN I USE HRW FOR MY OWN PROJECTS?
  • Yes. We are preparing source code samples and libraries. You can find them here .
  • IS IT SAFE TO USE?
  • While this device is in the prototype phase it is not authorized to be used neither for life supporting nor for any diagnostic or medical applications. However, all reasonable precautions were used during design and manufacture of this device so we strongly believe that it is safe for use.
  • IS THE DEVICE WATER RESISTANT?
  • No. It is not watter resistant. Don't go swimming with your device.
  • CAN I CONNECT TO MY SMARTPHONE?
  • No. Software build on .NET 3.5 framework. It is known that it works on WinXP, Win7, Win8.
  • HOW TO PLACE ECG ELECTRODES?
  • ...
  • HOW TO PLACE PPG SENSOR?
  • ...
  • WHAT IS PPG SENSOR?
  • ...















































































    2015 Heart Risk Warner
    Contact
    | info@hrwproject.com


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