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Arduino heart rate data logger – uses Adafruit data logger shield

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Arduino heart rate data logger – uses Adafruit data logger shield...

This page describes the assembly, programming and use of a device that constantly monitors heart rate and stores the data on an SD memory card. The data can be read from the card, imported into MS Excel (or other programs) for graphing or other analysis. I use this device to track my effort level on bike rides.


Datalogshield Lrg-1

Adafruit Data logging shield for Arduino – v1.0 – Here’s a handy Arduino shield: we’ve had a lot of people looking for a dedicated and well-designed data logging shield. We worked hard to engineer an inexpensive but well-rounded design. Not only is it easy to assemble and customize, it also comes with great documentation and libraries.

You can get going quickly – saving data to files on any FAT16 or FAT32 formatted SD card, to be read by any plotting, spreadsheet or analysis program. We even have a tutorial on how to use two free software programs to plot your data
The included Real Time Clock timestamps all your data with the current time, so that you know precisely what happened when!

Please note that this item does not come with an Arduino (you’ll need one to use with the shield), or an SD card. It does come with the RTC battery, however. The kit is un-assembled, You’ll need some basic soldering skills to put it together, but even if you don’t have much experience you can get it done in under 1 hour.

  • SD card interface works with FAT16 or FAT32 formatted cards. 3.3v level shifter circuitry prevents damage to your SD card
  • Real time clock (RTC) keeps the time going even when the Arduino is unplugged. The battery backup lasts for years
  • Included libraries and example code for both SD and RTC mean you can get going quickly
  • Prototyping area for soldering connectors, circuitry or sensors.
  • Onboard 3.3v regulator is both a reliable reference voltage and also reliably runs SD cards that require a lot of power to run
  • An Arduino with a ‘328 chip is pretty much required, you can get an upgrade chip from us if you have an older Arduino (such as NG/Diecimila)

For more information, including libraries, schematics and examples see the data logger shield webpage


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