Heart Beat Sensor - Digital Pulse out

Outputs Digital pulse for calculation by external microcontroller to derive BPM.

Sunrom Part# 1157

Available We dispatch same day if ordered by 4PM (excluding holidays), then courier usually takes 2-5 days.
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1157 Datasheet

Heart beat sensor is designed to give digital output of heat beat when a finger is placed on it. When the heart beat detector is working, the beat LED flashes in unison with each heart beat. This digital output can be connected to microcontroller directly to measure the Beats Per Minute (BPM) rate. It works on the principle of light modulation by blood flow through finger at each pulse.
For further information please refer to its datasheet.


  • Microcontroller based SMD design
  • Heat beat indication by LED
  • Instant output digital signal for directly connecting to microcontroller
  • Compact Size
  • Working Voltage +5V DC


  • Digital Heart Rate monitor
  • Patient Monitoring System
  • Bio-Feedback control of robotics and applications

Output checking on scope for reference below. The output is digital level at around 5V supply. The duration between pulses are used to calculate the heart beat.


Sunrom Electronics & Sunrom Technologies are two companies, that are the foremost online e-commerce stores since 2004, providing innovative embedded systems, components & services. Our aim is to empower you to Make In India. We work closely with electronics manufacturing companies & individuals to understand & solve the challenges faced during production. We do not just sell things, We use them ourselves in our products, and provide you with high quality tested components for trouble free experience.

  • Sunrom Electronics
  • GSTIN: 24AFBPT4632H1ZJ
  • Sunrom Technologies
  • GSTIN: 24AJLPP4029L1ZW
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