MAX30102 Heart Rate Pulse Sensor Oximeter Max 30102 Oxymeter Oxigen

Harga 1 pcs Product Parameters： LED peak wavelength: 660nm/880nm LED supply voltage: 3.3~5V Detection signal type: Light reflection signal (PPG) Output signal interface: I2C interface Communication interface voltage: 18~3.3V~5V (optional) Board reserved assembly hole size: 0.5X8.5mm Working Principle： Light-dissolving method: measuring the pulse and blood oxygen saturation by using human tissue to cause different light transmittance when the blood vessel beats; Light source: a specific wavelength illuminating pole tube selective for oxyhemoglobin (HbO2) and hemoglobin (Hb) in arterial blood; Transmittance is converted into electrical signal: the volume of the arterial pulsation is changed to the light transmittance of the light. At this time, the light is reflected by the human body tissue by photoelectric conversion, converted into an electrical signal and amplified and output. Pin Description: VIN: main power supply input terminal 1.8V-5V; 3-bit pad: Select the pull-up level of the bus, depending on the pin master voltage, select 1.8v or 3.3V (this terminal contains 3.3V and above) SCL: Connect the clock of I2C bus; SDA: data connected to the I2C bus; INT : Interrupt pin of the MAX30102 chip; RD: RED of the MAX30102 chip, LED ground terminal, - generally not connected; IRD: The IR, LED grounding of the MAX30102 chip is generally not connected; GND :Ground wire