Subject:
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RE: power source
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 12 Feb 2002 22:28:24 GMT
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Original-From:
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Kingsley Gifford <KGIFFORD@THEZONEsaynotospam.NET>
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Viewed:
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568 times
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I'm sorry, I can't really make out that photo.
Do I just connect the 7809 ic between the power supply and the rcx? Do I
connect to the + or - or use 2 and connect to both?
thanks
-----Original Message-----
From: news-gateway@lugnet.com [mailto:news-gateway@lugnet.com] On Behalf
Of Trevyn Watson
Sent: Tuesday, February 12, 2002 5:43 PM
To: lego-robotics@crynwr.com
Subject: Re: power source
This was just discussed on lugnet.robotics.rcx.
I have an rcx 2.0, and you can see what I did here:
http://members.rogers.com/swatsons/power4small.jpg
I used a 7809 voltage regulator.
Note that this requires some basic electronics and soldering skills.
I would not use a wall wart, because the voltage is not very well
regulated.
Btw, you cant hurt your rcx by using a 9v 1a power supply. You cant hurt
it by using a 9v 15a power supply. The amp rating is a maximum, the rcx
will only use what it needs.
Trevyn.
Kingsley Gifford wrote:
> I am using a mindstorms 1.5 (although it says "rcx 1.0" on the rcx.
>
> This model does not have a port to connect an external powersupply. • Most
> of my projects do not involve portability/motion of the rcx so using a
> transformer would be fine to me. Has anyone done this or have any
> suggestions? I have a couple adjustable power transformers that would
> suplly 9V DC and while rummaging through my junk I found an old sega
> adapeter, although this one is rated at 9V 1A (possibly to powerful?)
>
> thanks
>
>
>
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Message has 1 Reply:
 | | Re: power source
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| You're right, I didn't realise it wasn't very clear. What you do is you connect the positive wire from your power supply to pin 1* of the 7809. Then connect the ground of the RCX and the power supply to pin 2. Connect pin 3 to the positive battery (...) (23 years ago, 13-Feb-02, to lugnet.robotics)
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Message is in Reply To:
| | Re: power source
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| This was just discussed on lugnet.robotics.rcx. I have an rcx 2.0, and you can see what I did here: (URL) used a 7809 voltage regulator. Note that this requires some basic electronics and soldering skills. I would not use a wall wart, because the (...) (23 years ago, 12-Feb-02, to lugnet.robotics)
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