Using Peltier Cell with Arduino

Hello everyone,

i'm new to this forum.

I'm looking for a good tutorial to use Peltier Cell with Arduino.

I had a look at this, but seems that is incomplete (maybe i'm missing something)
http://garagelab.com/profiles/blogs/how-to-use-a-peltier-with-arduino

In particular since i'm a beginner, i would like to know where to attach the red input cable of the peltier as in the picture

Can someone help me, please?

AmigaBlitter:
In particular since i'm a beginner, i would like to know where to attach the red input cable of the peltier as in the picture

To the positiv side of the fat power supply that feeds the Peltier?

This Peltier can be powered up to 15,4V and 7A.

Thank you for the reply.

I've seen differents pictures, but where on the i must attach the red cable? To an external power supply?
Could the peltier be powered by the arduino itself?

AmigaBlitter:
but where on the i must attach the red cable? To an external power supply?

Still to the positiv side of the fat power supply.

AmigaBlitter:
Could the peltier be powered by the arduino itself?

No.

If you have to ask that you should not use such high power stuff.

Thank you very much.

Could you please suggest me a more detailed tutorial, if any?

No.

Searching youtube for "arduino peltier" yields 7160 hits.

And along with the big fat power supply, you need big fat heat sinks on both sides of the Peltier device. On the hot side to remove the heat and on the cold side to absorb the heat from what you are cooling. Or the other way around, if you are trying to heat something.

Paul

Thank you for the reply.

As i can see in the tutorial's picture, i should provide the VCC (voltage source) to the peltiel cell.

There's a ready made voltage source that i can attach to the peltier element?

There’s a ready made voltage source that i can attach to the peltier element?

Yes, as already mentioned, they are called “power supplies”.

You will need one that can supply 12V at 7 or more amperes.

Thank you for the reply.

I mean a ready made power source suitable with arduino device, with easy plug and play connectors and wires.

[u]Here is an example[/u] 12V/12A power supply. It has screw terminals for the connections.

7 Amps is probably too much for the breadboard so you should consider soldering to the MOSFET. And, the MOSFET might need a heatsink.

12v at 7 amps means you will need very serious heat sinks on the MOS FET and the cell itself.

.

LarryD:
12v at 7 amps means you will need very serious heat sinks on the MOS FET and the cell itself.

.

And a good fan blowing on the heat sinks, as well.

Paul

Thank you everyone for the info.

One more thing:

where the "GND da Fonte" wire should be connected?
To the ground (black) wire of the power supply?

thank you in advance

I'm guessing that "Fonte" is French for "Power Supply."

Find a tutorial in your own language. Try to avoid the Instructables ones. The picture you showed is an excellent example of a bad tutorial, not only did it leave you with questions but it's going to melt that breadboard and possibly set fire to your workbench.

Fonte stand for "Source". So it should be "Ground From Source".

I have attached the Peltier Cell and somehow it works (sort of).

Now could someone help me to find a sensor to attach on top of the cold side of the peltier unit?
I would like to read the temperature on the peltier unit and send the result to the arduino.

thank you in advance

The DS18B20 is pretty easy to use for temperature.

Thank you, MorganS.

Do you know if this could be used/attached on a peltier module

Probably. It looks simple enough.