Hold this heart in your hand and it automatically detects your touch and begins to glow, pulsing like a beating heart.

A Circuit Playground Express tucked away inside a 3D printed anatomical heart model uses its capacitive touch pad to detect when it's being held and pulse its onboard neopixels in response.

A Black woman's manicured hand holds a round microcontroller with lit up LEDs.
Circuit Playground Express is the next step towards a perfect introduction to electronics and programming. We've taken the original Circuit Playground Classic and...
$24.95
In Stock
Slim Lithium Ion Polymer Battery 3.7v 400mAh with JST 2-PH connector and short cable
Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This...
Out of Stock
USB cable - USB A to Micro-B - 3 foot long
This here is your standard A to micro-B USB cable, for USB 1.1 or 2.0. Perfect for connecting a PC to your Metro, Feather, Raspberry Pi or other dev-board or...
$2.95
In Stock
Conductive Nylon Fabric Tape - 5mm Wide
With our fun assortment of conductive materials, 
$2.95
In Stock
White Nylon Screw and Stand-off Set with M2.5 Threads, kit box
Totaling 420 pieces, this White Nylon M2.5 Screw Set is a must-have smörgåsbord for your workstation. You'll have more than enough...
$14.95
In Stock
Breadboard-friendly SPDT Slide Switch
These nice switches are perfect for use with breadboard and perfboard projects. They have 0.1" spacing and snap in nicely into a solderless breadboard. They're easy to switch...
$0.95
In Stock
Top shot of Red Silicone Cover Stranded
Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire...
$0.95
In Stock

Materials

In addition to the materials listed above, for this project you will also need:

  • Access to a 3D printer
  • White or Red filament
  • A piece of sandpaper
  • Soldering iron (optional)

Read on to learn how to build your own!

This guide was first published on Sep 13, 2019. It was last updated on Mar 08, 2024.

This page (Overview) was last updated on Mar 08, 2024.

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