Friday, 22 January 2016

mini-projects: Raspberry Pi , Python, Pimoroni ExplorerHat Pro to build a Junkbot (revised)

Junkbots ( are based around using  materials such as drink's cans, broken propellors and motors to produce something that moves by vibration. Previous designs can be found at:

The latest tweak to the Raspberry Pi based Junkbot design is to use the combination of Python and Pimoroni's Explorer HAT PRO to control it. Explorer HAT Pro is a good choice, it can control two motors with a library provided to simplify the programming. For this the Junkbot was the one shown above: a drinks can, pen, LEGO bits, motor and broken propellor.

Before the Explorer HAT can be used the library needs to be installed via the Terminal and the instructions below

curl | bash

Python code to control the junkbot is shown below.

import explorerhat
from time import sleep

def spin1(duration):

def spin2(duration):


Essentially the code spins the junkbot one way and then the other.

One extension thought understand consideration, is to use a Raspberry Pi Zero and Pimoroni Explorer pHat ( and carry it on the junkbot.

If you do use or modify please leave a comment, I would love to see what others do with it.

 All views and opinions are the author's and do not necessarily reflected those of any organisation they are associated with