Renewable Energy Innovation

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This is where we post about the day-to-day life in the re-innovation workshop. We aim to highlight interesting ideas and projects, show the way we develop products and explain anything that we think might be useful to other people.
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I've been investigating using my Minimus AVR units for a number of projects, so here is a post with how I got going using the minimus AVR unit with the Arduino IDE.

The Minimus AVR is a USB connected microcontroller, which uses the ATMEL 90USB192 microcontroller. This has 16kB of memory (I have a number of version 1's, the new version has 32kB of memory).

They have been used by people who mod games consoles, to upload new bootloaders and things like that. They retail for around £8, which is pretty good for a USB connected microcontroller. We ordered 100 of these for Nottingham hackspace and I have had a few sitting on my desk for over a year now. It was time to do something with them...

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Just finished putting together a simple power display with a large LED output, so here is a quick post.

This has been built using the new re-designed pedalog and three of the 7 segment LED boards.

 

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As I have detailed in a previous blog post, I have set up a DataDuino on to my off-grid solar power system. This measures the battery voltage, along with the outdoor and indoor temperatures.

The voltage data will help me understand how much energy is going into and being drawn from the battery. My off-grid PV system is outdoors so the temperature data is interesting with regards to battery voltage changes with temperature.

This blog post gives details an update and some graphs of data from the past three months.

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This is a post on getting the range of Atmel ATTiny microcontrollers working with the Arduino IDE. I was wanting a quick and easy way of programming smaller microcontrollers, for when the 28pin ATmega328 is just a bit too much. I looked at the range of 8-pin ATtiny microcontrollers via a comparison list here. I was already using the ATtiny-85 for the TV-B-Gone kit, so I had a few of those lying around.

Here are my collected notes on getting a ATtiny 45 and ATtiny 85 running via the Arduino IDE.

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This is a quick post on restoring an old axe and adding an engraved handle using a laser cutter.

I had picked up an old axe which had come apart from its handle and the blade had heavy nicks and was blunt.

I restored the axe and added a new wedge to hold the head.

It was a birthday present so I also used a laser cutter to engrave the handle.

 

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