[chbot] robotics meet pictures

[Kay edgecumbe]

here is a link to my site with pictures of the night

 http://www.storydad.com/forum/index.php/topic,1397.new.html#new

and some of my toys

> Date: Mon, 18 Jul 2011 17:27:46 +1200
> To: chchrobotics at lists.linuxnut.co.nz
> From: markaren1 at xtra.co.nz
> Subject: Re: [chbot] .5 offset voltage
> 
> Hi Wallace,
> 
> So the transducer connects to the 0.1999mV display and nowhere else ?
> 
> What display range do you want (for the input range of 0.5 to 4.5V) ?
> 
> Is the unit battery powered with any shared grounds ?
> 
> Tell me more about the transducer.
> 
> Mark
> 
> 
> At 05:08 p.m. 18/07/2011, you wrote:
> >Hi Mark
> >
> >I have a digital display from Jaycar. It runs on 5 volts. The input 
> >is 0-2 volts. The scaling is no problem. I have only one power 
> >supply. I have used a LM7805 for the display and probably a second 
> >one for the transducer. I do however need to float the display's 
> >ground 0.5 volts above the transducer's ground. It probably needs to 
> >be adjustable to clear the actual offset from the transducer. Most 
> >voltage regulators start at 1.2 volts so I'm stuck for a simple solution.
> >
> >Cheers Wallace
> >
> >
> >
> >
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> 
> 
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