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ROHM Semiconductor BH1790GLC Optical Heart Rate Sensor is a photodiode designed to measure pulse waves, which are changes in the volume of a blood vessel that occur when the heart pumps blood. Pulse waves are detected by measuring the change in volume using an optical sensor and green LED. The BH1790GLC Optical Sensor features an optical filter optimized for pulse wave detection. This filter minimizes the effects of ambient light and increases the sensitivity and accuracy of the sensor block.
The BH1790GLC Optical Heart Rate Sensor is offered in a compact WLGA010V28 package. The Sensor's small 2.8mm x 2.8mm footprint and low power requirements makes it ideal for wearable devices such as sports bands and smart watches.
Features
Optical filter offers excellent wavelength selectivity
Built-in IR-Cut Filter
Corresponds to 1.8V I2C Interface
Low power consumption
Analog supply voltage range: 2.5V to 3.6V
I/O supply voltage range: 1.7V to 3.6V
Current consumption: 200μA
Operating temperature range: -20ºC to +85ºC
Package size: 2.8mm x 2.8mm x 0.9mm
Applications
Wearable devices
Sports bands
Smart watches
Activity monitors
Medical IoT
Smartphones
Tablets
ROHM Semiconductor BH1790GLC Optical Heart Rate Sensor
Application Diagram
ROHM Semiconductor BH1790GLC Optical Heart Rate Sensor Application Diagram
ROHM BH1790GLC-EVK-001 Optical Heart Rate Sensor Expansion Board
Additional Resources
ROHM Semiconductor BH1790GLC-EVK-001 Expansion Board User Guide User Guide
ROHM Semiconductor BH1790GLC-EVK-001 Expansion Board Software Document Software Document
GitHub Design Resource Repository GitHub Design Resource Repository
Learn More About
ROHM Sensor Shield Kits
BH1790GLC-EVK-001 Optical Heart Rate Sensor Expansion Board
ROHM Semiconductor BH1790GLC-EVK-001 Expansion Board is designed to enable rapid development of applications based on the BH1790GLC Optical Heart Rate Sensor. The BH1790GLC-EVK-001 is designed to be used with the ROHM SensorShield-EVK-001.
Using the BH1790GLC-EVK-001 Expansion Board and the SensorShield-EVK-001 Evaluation Kit, designers can use GUI software to collect and process sensor data. The SensorShield-EVK-00
