The BMH08002-4 is a blood oxygen and heart rate sensor module that can measure blood oxygen saturation (SpO2), heart rate, and perfusion index (PI). The external MCU can read the measured value and set the operating mode and related parameters through the UART interface on the module.
This product is mainly composed of reflective blood oxygen heart rate sensor and Holtek dual operational amplifier A/D type Flash MCU. It is designed and produced by Best Health Electronics Inc.
It offers 4-level adjustable bandwidth integrated operational amplifiers and 16-bit Voice D/A converter. It is suitable for applications of oximeter, intelligent wearable devices and health care measurement products, etc.
Precautions for Measurement
When using this module in practice, some people may find it easy to measure successfully, while others may experience frequent measurement failures.
Based on our testing experience, successful measurements rely on several key points.
Please take note of the following when performing measurements:
Place your finger flatly on the measurement area. Your finger should cover the entire measurement area to avoid any interference from indoor lighting.
Do not apply excessive pressure when pressing your finger; keep it relaxed.
Keep the measurement area clean by wiping it with a clean tissue.
★ The measurement needs to take approximately 15 seconds to output the measurement result.
Please keep finger on the measurement area and avoid moving it.
