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Polar Heart Rate Monitor Interface

Product Code: SEN-08661
Excl. VAT: £45.34 Incl. VAT: £54.41
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This is a wonderful evaluation board cooperatively designed by danjuliodesigns and SparkFun.


The Heart Rate Monitor Interface (HRMI) is an intelligent peripheral device that converts the ECG signal from the Polar Heart Rate Monitor (HRM) into easy-to-use heart rate data.



  • Custom exercise equipment

  • Portable heart rate monitoring devices

  • Bio-feedback devices

  • Heart beat aware body-worn electronics

It implements a sophisticated algorithm for computing an average heart rate even with noisy or intermittent data from the transmitter.

  • Multiple interfaces: USB, Logic-level serial and I2C
  • Dual heart rate processing algorithms: averaged and raw
  • Uses the RMCM01 Polar OEM receiver
  • Compatible with coded and non-coded Polar transmitters including T31, T31C, T61C and Wearlink®
  • 32-entry heart rate data history buffer
  • Four 8-bit ADC inputs
  • Up to a 5 channel digital input/output utility port
  • Simple command/response interface
  • Programmable power-on default operation

Product Attachments

View FileSEN-08661 Manual    Size: (684.63 KB)
View FileSEN-08661 Schematic    Size: (41.04 KB)

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Polar Heart Rate Monitor Interface
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