Heart Rate data can be used in many Electronic design and microcontroller projects. But the heart rate data is difficult to read, however, the Pulse Sensor helps us to read heart rate. The Pulse Sensor is a plug-and-play heart-rate sensor for Programming Board . It essentially combines a simple optical heart rate sensor with amplification and noise cancellation circuitry making it fast and easy to get reliable pulse readings.Pulse Sensor adds amplification and noise cancellation circuitry to the hardware. Itâ€s noticeably faster and easier to get reliable pulse readings. Pulse Sensor works with either a 3V or 5V Programming Board . It can be used by students, artists, athletes, makers, and game & mobile developers who want to easily incorporate live heart-rate data into their projects.Features: Visualization software (made in Processing) to instantly see the output of the sensor and for troubleshooting. A Color-Coded Cable, with standard male header connectors. Plug it straight into an Programming Board or a Breadboard. No soldering is required. The Pulse Sensor has 3 holes around the outside edge which makes it easy to sew it into almost anything.