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Forum Index : Microcontroller and PC projects : Color MaxiMite from micromite.org - no power button?

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Decoy
Senior Member

Joined: 02/08/2019
Location: Denmark
Posts: 109
Posted: 01:09pm 26 Aug 2019
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Hi guys

I am thinking about buying a Color MaxiMite as a gift, completely assembled from micromite.org. However, it does not seem to have a on/off-switch?

It should be no problem installing a switch myself, but it seems weird to not have it present, right?

Thanks!
 
Chopperp

Guru

Joined: 03/01/2018
Location: Australia
Posts: 1106
Posted: 01:54pm 26 Aug 2019
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I think it is a standard feature for all CMM's.

There should be a jumper in the power supply part you can replace with a switch if required. Mine has.

You may be able to specify a switch in your order to save you doing it.

I think Geoff thought most users would leave it on continuously when he designed it.

I must admit, an On Off switch would be handy at times particularly if you have both a separate power supply as well as a USB connection. I removed the USB 5V connection on mine.
Edited 2019-08-26 23:55 by Chopperp
ChopperP
 
Poppy

Guru

Joined: 25/07/2019
Location: Germany
Posts: 486
Posted: 08:50pm 26 Aug 2019
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Right above/behind the SD-Card-Socket there are two pins being bridged by a jumper, just install a switch instead.

On this pic you see it bridged by a piece of wire:
http://geoffg.net/Images/ColourMaximite/06.jpg
>>> "Power SW" <<<

For a Reset-Button you can switch "RES" from the Arduino-Pins to ground, probably a resistor inline to smooth it.
The Duinomite uses a 300 Ohm I think.
Andre ... such a GURU?
 
WhiteWizzard
Guru

Joined: 05/04/2013
Location: United Kingdom
Posts: 2959
Posted: 07:52am 27 Aug 2019
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@Decoy

Adding a Power Switch is an option that can easily be implemented.

I have sent you a PM . . . .

WW
 
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