DIYNGO

We're Moving!

0 Comments - Add comment Written on 01-Jul-2009 by diyngo

DIYNGO is moving to www.diyngo.ning.com - the link www.diyngo.org will soon be redirected away from Webjam to point there.

Many thanks to the people at Webjam for a great product.

Hopefully the move will facilitate greater participation from our members.

Best,

DIYNGO.

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Windy on the UK Penines!

0 Comments - Add comment Written on 25-Jun-2009 by diyngo

Just returned from a 'camping trip' for some R & R and to test the modified HYMini wind turbine. The latter was a great success and so was the former unitl the wind really picked up and put paid to this mini mission!

In the video you can see the modified Mini in full action. It was left running overnight and only needed a slight top-up from the three solar panels the next morning to get the red charged light lit. This was then enough to top up my Palm Centro Personal Digital Assitant (PDA).

The centro is a nifty device although I haven't yet found a web browser that allows me to post to this Blog in 'the field'. If anyone knows of one which accepts Javascript/Ajax without a hitch, again, please holler!

Overall, it was a worthwhile trip and proved that this mini wind turbine packs quite a punch.

Thanks again to those at HYMinin for providing the device. Thoroughly recommended.

In terms of modifications its quite simple. A tail fin - in this case made of balsa wood taped to a garden cane - is inserted into a gap in the cycle attachment then another cane fits in the main clamped space to serve as an upright. This ensures that the HYMini is always facing into the wind. A simple washer is then used on the cane then this cane inserted into a scrap piece of pipe.

The wire hanging down is a commerically available extension which attaches the HYMini to its three companion solar panels.

As you can see sometimes the simplest solutions are the best.

Thanks.

DIYNGO

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Technical Help Required!!!

5 Comments - Add comment Written on 18-Jun-2009 by diyngo

415px-Sanzio_01_Heraclitus If anybody understand electronics better than we do then now is the time to holler!

We are attempting to charge the Asus Eee PC battery directly as the Sealed Lead Acid (SLA) Battery is not allowed on aircraft.

However, upon purchasing a unit which allows the Asus battery to be charged by 9-12 Volts we are obtaining an oscillating charge cycle.

In other words, the red LED indicating that the battery is charging is flashing on and off! Very frustrating, to say the least.

Experiments with both solar panels and the 12 Volt SLA batteries produce the same effect.

Before we spend even more money on pointless experiments, seriously, if you know what you're doing do let us know too!

The mains electric adaptor does not produce this effect. It outputs 9.5 Volts at 2.315 Amps.

Our only current conclusion is that both the solar panels and the SLAs are not producing enough power to maintain a level charge cycle.

Perhaps the next experiment will be to try this with a car battery. This should provide enough power then we will know that we will need more solar panels.

Thanks.

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