Junkbots (http://junkbots.blogspot.co.uk/) 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 get.pimoroni.com/explorerhat | bash
Python code to control the junkbot is shown below.
import explorerhat
from time import sleep
def spin1(duration):
explorerhat.motor.one.forward(100)
sleep(duration)
explorerhat.motor.one.stop()
def spin2(duration):
explorerhat.motor.one.backward(100)
sleep(duration)
explorerhat.motor.one.stop()
spin1(1)
spin2(1)
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 (https://shop.pimoroni.com/products/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
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