Heart Rate click carries Maxim’s MAX30100 integrated pulse oximetry and a heart-rate sensor. It’s an optical sensor that derives its readings from emitting two wavelengths of light from two LEDs – a red and an infrared one – then measuring the absorbance of pulsing blood through a photodetector. This particular LED colour combination is optimized for reading the data through the tip of one’s finger.
The signal is processed by a low-noise analog signal processing unit and communicated to the target MCU through the mikroBUS I2C interface. Developers of end-user applications should note that the readings can be negatively impacted by excess motion and changes in temperature. Also, too much pressure can constrict capillary blood flow and therefore diminish the reliability of the data. A programmable INT pin is also available. The operates at the 3.3V power supply.
Main Applications:
Medical Monitoring Devices
Fitness Assistant Devices
Wearable Devices
Note:
The module does not come with a berg pin connector.
Pin Configuration:
SN PINS DEFINITION OF PINS
1 VIN Input voltage (1.8V to 5.5V)
2 SCL IIC-SCL
3 SDA IIC-SDA
4 INT MAX30100INT
5 IRD MAX30100 IR_DRV
6 RD MAX30100 R_DRV
7 GND Ground
Circuit Diagram:
Specifications and Features:
Optical sensor: IR and red LED combined with a photodetector
Measures absorbance of pulsing blood
I2C interface plus INT pin
3.3V power supply complete pulse oximeter and heart rate sensor solution, simplifies design, integrated LEDs, photo sensor, and
high-performance analog front
Ultra low power operation increases battery life for wearable devices
Advanced functionality improves measurement performance, high SNR provides robust motion artifact resilience integrated
ambient, light cancellation high sample rate capability fast data output capability
It is an integrated pulse oximetry and heart rate monitor sensor solution.
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