Mikroe MIKROE-2998 Heart Rate 7 Click
Mikroe MIKROE-2998 Heart Rate 7 Click is an optical biosensor Click Board™ designed for Heart-Rate Monitoring (HRM). This click board employs a very sensitive analog front-end IC with a high dynamic range, which ensures accurate and reliable readings. This analog front-end IC is coupled with the optical front-end, which consists of a sensitive Photo-Diode (PD) and two high-brightness green LEDs. Mikroe MIKROE-2998 Heart Rate 7 Click provides highly accurate HRM readings as the photo-diode is most sensitive to visible light and offers reasonably high current output.
MIKROE-2998 Heart Rate 7 Click employs an AFE4404 integrated analog front end (AFE) device, used for optical heart-rate monitoring and bio-sensing, from Texas Instruments. This click uses the VEMD8080 photo sensor from Vishay, which is a high-speed PD element with enhanced sensitivity in the visible light spectrum as the optical front-end. The heart rate 7 click uses two VLMTG1400 high-brightness true-green LEDs from Vishay, specially designed for HRM measurement applications, offering a narrow band of green light wavelength.
Features
- Simple and accurate HRM measurement by placing a finger on the sensor
- High dynamic sensitivity
- Three integrated LED drivers with independently programmable currents
- Ambient light and DC offset cancellation
- Internal/External clock source
- Top-of-the-class LED and PD optical front-end
Specifications
- 3.3V or 5V input voltage
- I2C interface
- 42.9mm x 25.4mm click board size
Overview
Additional Resources
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