# Capacitive Touch Pulsing Heart ## Overview 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. ![](https://cdn-learn.adafruit.com/assets/assets/000/080/865/medium800thumb/biometric_Heart_hero_red.2019-09-12_17_21_36.jpg?1568404742) ### Circuit Playground Express [Circuit Playground Express](https://www.adafruit.com/product/3333) **Circuit Playground Express** is the next step towards a perfect introduction to electronics and programming. We've taken the original Circuit Playground Classic and made it even better! Not only did we pack even more sensors in, we also made it even easier to... Out of Stock [Buy Now](https://www.adafruit.com/product/3333) [Related Guides to the Product](https://learn.adafruit.com/products/3333/guides) ![A Black woman's manicured hand holds a round microcontroller with lit up LEDs.](https://cdn-shop.adafruit.com/640x480/3333-05.jpg) ### Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh [Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh](https://www.adafruit.com/product/3898) 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 battery has a capacity of **400mAh** for a total of about 1.9 Wh. If you need a larger (or smaller!)... In Stock [Buy Now](https://www.adafruit.com/product/3898) [Related Guides to the Product](https://learn.adafruit.com/products/3898/guides) ![Slim Lithium Ion Polymer Battery 3.7v 400mAh with JST 2-PH connector and short cable](https://cdn-shop.adafruit.com/640x480/3898-05.jpg) ### USB cable - USB A to Micro-B [USB cable - USB A to Micro-B](https://www.adafruit.com/product/592) 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 microcontroller Approximately 3 feet / 1 meter long In Stock [Buy Now](https://www.adafruit.com/product/592) [Related Guides to the Product](https://learn.adafruit.com/products/592/guides) ![USB cable - USB A to Micro-B - 3 foot long](https://cdn-shop.adafruit.com/640x480/592-01.jpg) ### Conductive Nylon Fabric Tape - 5mm Wide x 10 meters long [Conductive Nylon Fabric Tape - 5mm Wide x 10 meters long](https://www.adafruit.com/product/3961) With our fun assortment of [conductive materials](https://www.adafruit.com/category/190), [cosplay](https://www.adafruit.com/index.php?main_page=category&cPath=290) and [wearables](https://www.adafruit.com/category/65) have never... In Stock [Buy Now](https://www.adafruit.com/product/3961) [Related Guides to the Product](https://learn.adafruit.com/products/3961/guides) ![Conductive Nylon Fabric Tape - 5mm Wide](https://cdn-shop.adafruit.com/640x480/3961-00.jpg) ### White Nylon Machine Screw and Stand-off Set – M2.5 Thread [White Nylon Machine Screw and Stand-off Set – M2.5 Thread](https://www.adafruit.com/product/3658) Totaling 420 pieces, this **White Nylon M2.5 Screw Set**  is a must-have smörgåsbord for your workstation. You'll have more than enough screws, nuts, and hex standoffs to construct your maker projects for days on end! M2.5 screws fit nearly... In Stock [Buy Now](https://www.adafruit.com/product/3658) [Related Guides to the Product](https://learn.adafruit.com/products/3658/guides) ![White Nylon Screw and Stand-off Set with M2.5 Threads, kit box](https://cdn-shop.adafruit.com/640x480/3658-00.jpg) ### Breadboard-friendly SPDT Slide Switch [Breadboard-friendly SPDT Slide Switch](https://www.adafruit.com/product/805) 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 no matter what size fingers you have, but not so easy that they'll get flipped by accident. Work great as... In Stock [Buy Now](https://www.adafruit.com/product/805) [Related Guides to the Product](https://learn.adafruit.com/products/805/guides) ![Small, black, SPDT slide switch.](https://cdn-shop.adafruit.com/640x480/805-03.jpg) ### Silicone Cover Stranded-Core Wire - 2m 26AWG Red [Silicone Cover Stranded-Core Wire - 2m 26AWG Red](https://www.adafruit.com/product/1877) 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 for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to... In Stock [Buy Now](https://www.adafruit.com/product/1877) [Related Guides to the Product](https://learn.adafruit.com/products/1877/guides) ![Top shot of Red Silicone Cover Stranded ](https://cdn-shop.adafruit.com/640x480/1877-01.jpg) ## 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! ![](https://cdn-learn.adafruit.com/assets/assets/000/080/867/medium800thumb/biometric_Untitled11.2019-09-13_16_08_10.jpg?1568405321) - [Next Page](https://learn.adafruit.com/3d-printed-heart-capacitive-touch/circuitpython-code.md) ## Featured Products ### Circuit Playground Express [Circuit Playground Express](https://www.adafruit.com/product/3333) **Circuit Playground Express** is the next step towards a perfect introduction to electronics and programming. We've taken the original Circuit Playground Classic and made it even better! Not only did we pack even more sensors in, we also made it even easier to... Out of Stock [Buy Now](https://www.adafruit.com/product/3333) [Related Guides to the Product](https://learn.adafruit.com/products/3333/guides) ### USB cable - USB A to Micro-B [USB cable - USB A to Micro-B](https://www.adafruit.com/product/592) 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 microcontroller Approximately 3 feet / 1 meter long In Stock [Buy Now](https://www.adafruit.com/product/592) [Related Guides to the Product](https://learn.adafruit.com/products/592/guides) ### Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh [Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh](https://www.adafruit.com/product/3898) 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 battery has a capacity of **400mAh** for a total of about 1.9 Wh. If you need a larger (or smaller!)... In Stock [Buy Now](https://www.adafruit.com/product/3898) [Related Guides to the Product](https://learn.adafruit.com/products/3898/guides) ### Breadboard-friendly SPDT Slide Switch [Breadboard-friendly SPDT Slide Switch](https://www.adafruit.com/product/805) 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 no matter what size fingers you have, but not so easy that they'll get flipped by accident. Work great as... In Stock [Buy Now](https://www.adafruit.com/product/805) [Related Guides to the Product](https://learn.adafruit.com/products/805/guides) ### White Nylon Machine Screw and Stand-off Set – M2.5 Thread [White Nylon Machine Screw and Stand-off Set – M2.5 Thread](https://www.adafruit.com/product/3658) Totaling 420 pieces, this **White Nylon M2.5 Screw Set**  is a must-have smörgåsbord for your workstation. You'll have more than enough screws, nuts, and hex standoffs to construct your maker projects for days on end! M2.5 screws fit nearly... In Stock [Buy Now](https://www.adafruit.com/product/3658) [Related Guides to the Product](https://learn.adafruit.com/products/3658/guides) ### Conductive Nylon Fabric Tape - 5mm Wide x 10 meters long [Conductive Nylon Fabric Tape - 5mm Wide x 10 meters long](https://www.adafruit.com/product/3961) With our fun assortment of [conductive materials](https://www.adafruit.com/category/190), [cosplay](https://www.adafruit.com/index.php?main_page=category&cPath=290) and [wearables](https://www.adafruit.com/category/65) have never... In Stock [Buy Now](https://www.adafruit.com/product/3961) [Related Guides to the Product](https://learn.adafruit.com/products/3961/guides) ## Related Guides - [Adafruit Circuit Playground Express](https://learn.adafruit.com/adafruit-circuit-playground-express.md) - [Illuminated City Skyline with MakeCode](https://learn.adafruit.com/city-skyline-with-makecode-for-cpx.md) - [DIY Circuit Playground Shields](https://learn.adafruit.com/circuit-playground-shields.md) - [FLORAbrella](https://learn.adafruit.com/florabrella.md) - [Steven Universe Cosplay Shirt & Gem](https://learn.adafruit.com/steven-universe-cosplay-shirt-gem.md) - [Halloween Monsters with CRICKIT and Circuit Playground Express](https://learn.adafruit.com/halloween-monsters-with-crickit.md) - [Crickit Harmonic Drawing Machine](https://learn.adafruit.com/crickit-harmonic-drawing-machine.md) - [CircuitPython Essentials](https://learn.adafruit.com/circuitpython-essentials.md) - [Circuit Playground Express Spinner Game in MakeCode](https://learn.adafruit.com/circuit-playground-makecode-spinner-game.md) - [Anatomical 3D Printed Beating Heart with MakeCode](https://learn.adafruit.com/anatomical-3d-printed-beating-heart-with-makecode.md) - [Introducing Adafruit Crickit #MakeRobotFriend](https://learn.adafruit.com/adafruit-crickit-creative-robotic-interactive-construction-kit.md) - [Building CircuitPython](https://learn.adafruit.com/building-circuitpython.md) - [Cam Follower Automaton](https://learn.adafruit.com/cam-follower-automaton.md) - [CircuitPython Made Easy on Circuit Playground Express and Bluefruit](https://learn.adafruit.com/circuitpython-made-easy-on-circuit-playground-express.md) - [Circuit Playground Express Perk-up Ears](https://learn.adafruit.com/perk-up-ears.md) - [Motorized Marble Machine](https://learn.adafruit.com/marble-run.md)