Sensor-Pulse

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Sensor-Pulse The product number of Sensor-Pulse is: MSDI31 Sensor-Pulse is a heart rate or pulse sensor of photoelectrical principle. Sensor-Pulse takes advantage of the sensitivity of the infrared with specified wavelength to the change of the blood volume produced by the blood microcirculation in the end of the blood vessel to detect the change of fingertip blood caused by heart beat. The sensor can output the completed pulse wave voltage signal reflecting the change of the fingertip blood volume. Introduction of Pins Pins of the sensor: PIN1: GND PIN2: VCC General signal pins: PIN3(IO1): digital/analog signal PIN4(IO2): NC(null) Special signal pins: If it is IIC: IO1/IO2 are respectively SDA/SCL. If it is soft serial port: IO1/IO2 are respectively tx/rx. Special to Sensor-Pulse sensor pins PIN1: GND PIN2: VCC PIN3(IO1): Analog read PIN4(IO2): NC Microduino sensor can communicate with core module through the connection with Microduino-Module Sensor Hub. Features SON7015 sensor ultra-low consumption, and the power consumption is 0.2mA. With small size which is easy to install. Analog signal Specification Electrical specification Input voltage: 3.3~5V, and 6V at most Working current: 15uA Working temperature: -20~85℃ Output voltage: high level 5V, low level 0V Size Size of the board: 23.5mm*13mm 1.27mm-spacing 4Pin interface connected with sensorhub The CAD drawing of the sensor: File:Sensor CAD.zip Function description After press the sensor tightly on the skin, the digital output will be 1 or 0 along with the change of the blood. Connection This sensor can be connected to the following interfaces of core: D2~D13 Document Schematic diagram: File:Sensor-Pulse.Zip Main chip: File:SON1303 datasheet.pdf Extension document: Pulse Module Interrupt Method Measurement Development Program Download Download and unzip the program File:Sensor-Pulse Test.zip Programming Follow the Software Getting Started Guide. Select the Board, Processor and Port. Click [File]->[Open], browse to the project program address, and click "Sensor-Pulse Test.ino" to open the program. After confirming all these items are correct, click "→" to download the program to the development board. Hardware Setup Referring to the following diagram, connect the Sensor-Pulse to the digital pin D6 of Microduino-Sensorhub. Result After download, open the serial monitor. The pulse sensor will detect the fingertip blood change caused by heart beat, and filter out some unstable elements through algorithm to get a more accurate value. Application Real-Time Pulse Detection Project Purchase History Pictures Front Microduino-Cube-Station Front Back Microduino-Cube-Station Back