what is my breadboard's metal plate for?

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hello , I have a MB-102 breadboard(a standard one...) and I realized that in the box there was a metal plate. can I throw it to the garbage? Or what is that for?

thank you. I feel I am going to learn something. it is very strange that a company add useless weight to a send-able product.

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"The sturdy metal base plate serves as a ground plane to help minimize noise and voltage spikes in today's high-speed circuits."
[url=http://www.digikey.com/product-highlights/us/en/3m-300-series-solderless... 300 Series Solderless Breadboards[/url] (Digi-Key)

"Dare to be naïve." - Buckminster Fuller

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A thin piece of foil would also serve as a ground plane without the additional mass (and cost).

I think it's more to keep the board from moving around on the table.

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I see that my board comes with one sticker at the bottom which I didn't use(I thought it was to stick the board to the the desk :D). The advice is to stick the metal plates to the bottom of the breadboards so I will improve the noise rejection in high speed applications... right?

thank you for this valuable knowledge

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I can't imagine this "ground plane" being of any significant benefit in the face of the other limiting properties of these breadboards :!:

If you're doing "high speed", you don't want to be doing it on a solderless breadboard :!:

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yes...it makes sense.

anyway just to finish with this issue. if I stick the metal plate to the bottom of the breadboard, do I need to connect the plate some-way to the ground line of the breadboard?

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The breadboard is supposed to be attached to the metal plate with the tape. The plate should have four rubber/Vinyl pads on one side. Mount the breadboard to the OTHER SIDE. This will allow you to place the breadboard/plate on a table so it will not slide off the surface.

The breadboard itself is used frequently in other prototyping assemblies as it can be attached to other mb-102's to make a bigger area.

It is not there for noise suppression.

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Clearly the rubber feet help keep the board from sliding across the bench.

I've got some breadboards mounted on metal plates, some mounted on plexiglass, and a couple that aren't mounted to anything.

I'm not sure what to call "high speed" these days. The Xmegas run at 32 MHz and back in the "old days" this was VHF Low Band! (And my 8080's use 3.x MHz color burst Xtals...)

The four breadboard project is from several years ago. Mega, Bluetooth, GPS, 3-axis accelerometer, and a bank of EEPROMs. The EEPROMs got replaced with an SD card. Easy when one uses a breadboard, tough to swap, and expensive, if one starts with a PCB.

The metal backed single breadboard has an Xmega and a FTDI USB chip, plus some analog stuff.

The goal here should be to start using your breadboard, and don't worry about the metal plate!

JC

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Nice work JC!!

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user