MicroView Simple Sliders with Potentiometer

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Introduction

MicroView can display 2 kinds of slider:

  1. The slider is positioned to the left of the readout.  This is very compact;
  2. The slider is positioned above the readout.

The sliders can be positioned anywhere on the display and both the minimum and maximum values displayed can be specified. (* note below).

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MicroView Education Kit – first look

I have just received the MicroView Education kit, the result of a Kickstarter project by the team at Geek Ammo and I’m pretty impressed.

Hardware Overview
The hardware is distributed by Sparkfun and essentially comprises the MicroView with the accessories normally included in the (Arduino) Sparkfun Inventors Kit.  There are many tutorials and books that use these components and as the MicroView has the same functionality as the Arduino Uno, they can all be used.

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Arduino blinking LEDs

This project series is a means by which I am testing out the various ways of blogging similar projects easily.  So they are not designed to be instructional as such, more a testbed.  Having said that, if they are useful, feel free to use them and have fun!

Blinking LEDS

What the Project Does:

  • We are going to make 5 LEDs turn on and off, one after the other.

What are we Learning?

  • How to write a simple Arduino sketch, with comments
  • How to allocate input/output pins and set them high or low.
  • How to connect LEDs correctly to the Arduino board.

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Zero ZF9 Maintenance – incorrect ‘Charger connected’ warning

Bike: Zero S ZF9 electric motorcycle
Owned for: 4 weeks
Mileage: 2083

I wash my Zero using a watering can (triple wax) and brush first of all, followed by an application of wax on the fibreglass.

Today I started the bike after the wash phase, only to find that the motor would not engage and the warning light was flashing the 1-2 pattern, meaning (according to the manual) that the charger was still connected.  Only it wasn’t of course.

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Project 001 Simple arduino persistance of vision circuit

I’m just getting back into some Arduino programming after a long break and found this very simple project to create a POV display.  The simple sketch can be found at http://luckylarry.co.uk/arduino-projects/arduino-basic-persistance-of-vision/

I had thought I might use it as a fixture on my Zero electric motorbike to display the word ‘electric’ as I rode passed.  Reviewing the code has been a useful reminder of the very basics, however I think the manufacture of something ‘roadworthy’ does not merit the effort at this time.

WP_001245

What might be a useful excercise if this were to be used with @stemexcel students might be to do with transcribing the required lettering into the code.  Also, some nice calculations could be done with the delays in the code to work out the size of the lettering given a certain speed of travel.

So for future development, some kind of simple wand that can be ‘swished about’ might be needed with the LEDs on it to use as the display.  Worth thinking about I think.

 

 

Fuel Cells Kits

I recently came across Horizon Fuel Cells http://www.horizonfuelcell.com/ who were demonstrating educational kits at the BETT Show in London.

I have followed fuel cell developments for some time and so it was great to see affordable kits that can be used to show how hydrogen can be produced, stored safely in metal hydride canisters and subsequently used to create electricity.  These canisters appeared briefly on the market some years ago, but vanished again before I could obtain any. 

So have I purchased a great little car and a more sophisticated kit complete with a wind turbine and photvoltaic cells to produce environmentally friendly hydrogen.  The wind turbine in particular is well designed, with several different blade profiles and a variable angle of attack for experiments on efficiency.  I will use these kits to generate interest for our STEM (Science, Technology, Engineering and Maths) projects and also for more able and talented.

And what is even more fun is the RC car – check out the video on the website!  This uses two hydride canisters and a 30W fuel cell to boost a model RC car.  The hydride canisters will be able to be refilled from a ‘Hydrofill’ unit which I believe will be the first hydrogen generator designed for domestic use.  I wait eagerly to see this come into production.

So why not start to plan for  fuel cell projects in our schools?  We should be giving young people the opportunity to experiment with and build bikes, go-carts and whatever else (model planes?) using this exciting and suddenly accessible technology.