Four Pies

About the project

We give you a quick overview and build a project to welcome the Raspberry Pi 4 to the world!

Items used in this project

Hardware components

Felt Felt x 1
Tiny Breadboard Tiny Breadboard x 1
Raspberry Pi 3 Model B Raspberry Pi 3 Model B x 1

Software apps and online services

Raspberry Pi Raspbian Raspberry Pi Raspbian

Hand tools and fabrication machines

Hot glue gun (generic) Hot glue gun (generic) x 1
3D Printer (generic) 3D Printer (generic) x 1



Below a quick overview of the content.

  • Introduction and showcase video
  • Pie
  • Pi
  • 3.14
  • Pies
  • Result

Introduction and showcase video

To welcome and celebrate the new Raspberry Pi 4, we’re building a project consisting of four Pi(e)s!

Project Video


Our first pie has two parts, a container and a lid.

Both are based on this great 3d model.

All we have to do is make it bigger, and add an opening for our pies to come out.



Now we have a basic pie, but it does not look the part.

Using some glue, felt and coloured balls we add some extra pie-ness.

There’s a great tutorial on how to exactly do this right here.

Some raspberry styling


Our pie will hold everything we need, and one of them is our Raspberry Pi 4.

Configuring and powering is done the usual way.

They have a very neat guide on exactly how right here.

If you want to know more details about this new Pi, look no more.


We want our Pi in our pie to calculate π. To achieve this there’s a bit of python code.

def calculatePi():
  os.system('echo "scale=2000;4*a(1)"|bc -l')

You can play with the precision by changing the scale. The higher the scale, the longer it will take.


We have a Pi within a pie that calculates π.

The last step is to add some pies.

This requires two things, some ASCII art and a little thermal printer.

First of all, our ASCII pie, thanks to this great website!

We have our ASCII pie, next is connecting the thermal printer. All we need to do is follow the steps outlined here.

Printing them pies

You can find the complete code in the ‘Code’ section.


Now we have a Raspberry Pi 4, in a pie, calculating π, and printing pies!

What better way to welcome the new Raspberry Pi 4 then a Pi(e)fest!




Photo of 8BitsAndAByte


We’re Dane & Nicole, two makers that create tremendously terrible tech, which we happily share with you on our channel!


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