Arduino | Heart

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Overview

Build a mechanical heart that uses a pulse sensor to make the heart beat with yours

Materials

  • AHeart Base
  • BLinear Gears
  • CDrive Gear
  • DServo Sock
  • EPulse Sensor
  • FSensor Cable
  • GGuides x3
  • HWood Washers x 3
  • I#6 x 1/2" Screws x14

Build Steps

Step 1

Install the guides in position A, B and C using 2 #6 x 1/2" screws

Step 2

Install the linear gears in positions A, B and C using a #6 x 1/2" screw. Leave these screws loose so the gears can slide easily.

Step 3

Install the wood washers into the middle holes in positions A, B and C. Leave the screws a little bit loose to that the washers can spin easily.

Step 4

Install the drive gear A onto the servo sock using 2 #6 x 1/2" screws. Next, hook the Servo Sock up to position D8 (B). Power up the board and turn the first knob (c) clockwise until it stops to turn the gear fully clockwise.

Step 5

Power off the board then, move the servo connection (A) to position D10. This is the servo connection that runs with the sensor. Next, connect the pulse sensor to the connection below labeled A5 (B). Be sure to connect the orange wire to the "S" on the sensor. This is the signal wire.

Step 6

Install the assembled heart onto the servo sock making sure the gears are all the way into the center of the heart.

Power up and hold the sensor with the heart symbol towards your skin. Hold it still and the heart should start beating with yours!