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CATEGORY
How To Make A micro:bit Heart Rate Monitor
DFRobot
Jun
14
2017
PROJECTS
If you have been playing with micro:bit and the Block editor(PXT) before, you might be familiar with the flashing heart example, the one creates an simply animation of a beating heart.
Flash Heart Example:
https://www.microbit.co.uk/blocks/lessons/flashing-heart
However, is there any way that we can link our actual heart beat to micro:bit?
The following tutorial will show you how to set the micro:bit beating together with your heart using the optical heart rate
sensor
(heart rate sensor is available from DFRobot website: https://www.dfrobot.com/product-1540.html)
Project 1: display your heart rate on micro:bit
Component List:
micro:bit - An Educational & Creative Tool for Kids
Gravity: Heart Rate Monitor Sensor for Arduino
Step 1:
upload the following program into micro:bit
Step 2:
Connect the circuit as following.
VCC=>3.3V
GND=>GND
Heart rate sensor=>Pin 0
Put the sensor on your finger as above and you will see your heart beat from the LED panel.
Note 1: Make sure the switch is turned to D (digital) side.
Note 2: Hold your body and hand in still during the measurement, stick the LED emitter on to the skin with a stable pressure.
Project 2: Monitor your heart beat from a RGB LED strip
Component List:
micro:bit - An Educational & Creative Tool for Kids
Gravity: Heart Rate Monitor Sensor for Arduino
Digital RGB LED Weatherproof Strip 60 LED - (1m)
Step 1:
upload the following program into micro:bit
Step 2:
Connect the circuit
VCC=>3.3V
GND=>GND
Heart rate sensor=>Pin 0
RGB NeoPixel LED strip =>Pin 1
Note 1: Make sure the switch is turned to A (Analog) side.
Note 2: Hold your body and hand in still during the measurement, stick the LED emitter onto the skin with a stable pressure.
To find out more interesting sensor and electronic modules, visit the Boson Kit.on Kickstarter page.
Related Blog Post:
Microbit Tutorials
Micro:bit board: an introduction
5 Easy Steps for you to Quick Start with BBC Microbit
Micro:bit JavaScript Blocks Editor: Hello World
Micro:bit JavaScript Blocks Editor: Turning LEDs on and off
Micro:bit JavaScript Blocks Editor: Detecting button click events
Micro:bit JavaScript Blocks Editor: String interpolation
Micro:bit: MicroPython support
Microbit Projects
Mobile Doorbell System with BOSON and Micro:bit
How To Make A Micro:bit Heart Rate Monitor
Microbit Project micro:bit Laser Target
Micro:bit Surprise box
Microbit Project: Micro:bit Selfie Remote
Micro:bit Project: Light(Mood Lamp)
Micro:bit Project: Yes/No Bear
Smart Fan Control System with Micro:bit
LED writing board (micro:bit compatible)
micro:bit car with DFRobot gamepad
OBLOQ-IoT Module +Micro:bit IoT Flower Watering
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