Re: [DIYbio] Electronic requirements for redesign of Arduino PCR thermal cycler

On 02/24/2015 10:49 PM, Andy Morgan wrote:
> But the thing is: I have ZERO experience with electronics, and I don't know whether the cartridge heater will require too much
> power from the Arduino board or power supply, and all the explanations I've found on the internet seem to go WAY over my head.
>
> Does anybody know whether the cartridge heater will work?

If you are asking if we will wade through an instructables video to figure it out -- no.

What you could do is some of the leg work needed to answer your question. This points out how
"just publishing data in some kind of format that actually was used to make something" is often
not enough for others to use efficiently. Was the control circuit made with open tools such
as KiCAD or gEDA_gschem and gEDA_PCB? If not, will you convert the schematic and bill of materials
into something email friendly like .svg or .gif image of the schematic and text list of the BOM?

Then maybe you will get helpful answers since the basic problem is easy for an electronics engineer
or electronics novice.

Here's a little sleuth work on what you sent already to maybe motivate you:

"ebay.com.au/itm/Cartridge-Heater-3-8-Diameter-3-2-Length-220VAC-300W"
From this we guess you are in Australia, where there are fewer parts sources than in USA, but some.

"3-8-Diameter" It is a rod with .375 in. diameter -- it could be bent in a U though....

"220VAC-300W" It is 300Watts when driven by 220VAC, which probably is not what your circuit puts out.
Does your circuit use a relay to switch power from the house mains to the heater, or more likely it
uses a transistor to switch 12VDC to a heater resistance...

Weatherman guess about your new part working: Cloudy with 70% chance of thunder storms imminent.

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