Meet Revenge

This is my first post for a while, progress on my entry to Pi Wars is getting there, I just need to sort out the 3 point turn and the line following plus hopefully the autonomous speed run. Not a lot to do then!

I have been working on the worst kept hush hush Skunkworks Pi Wars robot projects in history, I have been showing of my robot Revenge, at STEM events, Maker faires and even at an open event at Makespace last night when the Ipswich hackspace crew visited. I have also had Revenge hiding in the background in some of the photos and code that I have posted in this blog.

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PiWars – Proximity alert

In my last post, I compared different ways how to control your robot, in this post I will be sharing my experiences for selecting the sensors and method for controlling my robot for the PiWars challenge Proximity Alert. So what is Proximity Alert challenge about?here’s a quote about it from the PiWars website,

Your robot will proceed autonomously from a start line and will use sensor(s) to prevent hitting a wooden wall 1.5 metres away. It will do this a total of 3 times. After each approach and stop, you will retrieve your robot and carry it to the start line. No part of the robot is permitted to touch the wall, so tactile sensors ‘feeling’ the wall would constitute a failure.

from the above quote, rules out using a tactile sensor, so using a micro switch and/or pressure sensor is not possible, so that leaves the choice of using  a range finder sensor, measuring the distance your robot travelled from the start line ( Dead reckoning ) or image processing. The below  methods, don’t allow for drift. Drift is where your robot will not move in a straight line, and is caused by at least one or all of the following; poorly matched motors, surface conditions, an uneven surface and wheels slipping. First let go over the pro’s and con’s of each method and types of sensors.

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Raspberry Pi Birthday countdown – Part 2

Posted on 14th February 2015 by Brian Corteil Posted in Making, Raspberry Pi   I have updated my Raspberry Pi Birthday countdown program to output via the serial port to an Adafruit serial LCD back pack. Follow the below instructions you can download the code from my github account by entering the following command on … Read more

PyroBot

First Posted on 17th November 2014 by Brian Corteil Posted in Making, PiWars, Raspberry Pi PyroBot is a featherweight robot built around the Raspberry Pi plus models, and has been created to take part in the Cambridge Raspberry Jam’s PiWars. There has been a number of prototypes, all have been based around the same design, … Read more

Raspberry Pi Birthday Countdown

Posted on 31/01/2015 by Brian Corteil Posted in Making, Raspberry Pi On the 28th feb will be the Raspberry Pi’s 3rd Birthday. I wrote a plugin for Pimoroni’s cool Displayotron for the Raspberry Pi, details for the plugin can be found on the Pimoroni forum here. I have just finished converting the code for counting … Read more

Digital Zoetrope

First Posted on 8th February 2015 by Brian Corteil Posted in Making, Raspberry Pi   You may have seen on my posts on Twitter about my project “Digital Zoetrope”. It is going to be a true zoetrope, with 12 Adafruit OLED displays connected to a single Raspberry Pi via SPI. The first hurdle is that … Read more