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Old April 26th 04, 11:31 PM
Colin Dawson
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(Duel of fates playing in background) IT'S WORKING, IT'S WORKING!

Woohoo.

OK, guy's here's a couple of circuit diagrams that I'll share. The first
should be coupled with the K8004 circuit used in my dew heater, this will
provide a nice bargraph showing the setting of the 1K Pot. (hmmm pretty red
lights). The second is the 12V battery voltage monitor that I just
finished. I've made both circuits up onto PCB's so I know that they work
perfectly.

K8004 Setting Bar
http://www.cjdawson76.btinternet.co....tdrivenbar.jpg

Battery Monitor
http://www.cjdawson76.btinternet.co....rIndicator.jpg


I've got the tools that I need to make these up into proper PCB's, they've
have turned out really well. I've spread the LED's over about 10cm, it
should show up easily in the dark. Oh yeah, I got these circuit from the
web then modified them slightly to fix some issues that I noticed with them.

Next stage of my master project is to build the box to put the box that will
house all the parts. This is going to take quite a while to design, but it
should turn out well. At least the electonics are all completed.


Regards

Colin Dawson
www.cjdawson.com


"Andrew Cockburn" wrote in message
-service-com...
Can't wait to see how you did it, sounds cool - good luck getting it
working !

Andrew

Colin Dawson wrote:

I saw in one of your messages that you are thinking about a charge
indicator. That's one of the things that I'm putting into my box.

Also
I'm adding a circuit to show the current setting of the dew heater.

Each
circuit will pull about 20mA of power from the battery, so it's not even
worth thinking about :-) Even in high power mode, when it shows a

pretty
bar graph, it still pulls about 100mA with all ten LED's lit. I'll be
posting up the circuit diagrams once I've got it all working.

(hopefully tonight!)

Regards

Colin.