Stay warm this winter: CPU Hand Warmer

In this small project I will show you how I repurposed an old AMD CPU to create a small, light and easy to use electric hand warmer. With the help of a small portable power bank this gadget can warm you up for around 2 and a half hours and can easily reach temperatures up to 60 degrees celcius.

Step 1: Watch the video!

The video gives you all the info you need to build this thing. But I will also give you a few advises during the next steps.

Step 2: Get your parts!

Stay warm this winter: CPU Hand Warmer

Here you can find all the parts I used during this build except the CPU. But you can find an old one very easily and cheap on Ebay.

Ebay:

1x Arduino Nano:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x DS18B20 Thermal Probe:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x 10k Resistor:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x 5V Power Bank:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x USB Cable:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...


Amazon.de:

1x Arduino Nano:http://amzn.to/1CJS3AD

1x DS18B20 Thermal Probe:http://amzn.to/1ClWPWO

1x 10k Resistor:http://amzn.to/1ClWWl6

1x 5V Power Bank:http://amzn.to/1ClWXpj

1x USB Cable:http://amzn.to/1ClX2Jv


Amazon.com:

1x Arduino Nano:http://amzn.to/1AYS9C9

1x DS18B20 Thermal Probe:http://amzn.to/1EBpR4r

1x 10k Resistor:http://amzn.to/1yYbFUc

1x 5V Power Bank:http://amzn.to/1zDbBcg

1x USB Cable:http://amzn.to/1EBq3jW

Step 3: Download the code for the thermometer!

Here you can find the sketch for the thermometer that I used during the video.

Don't forget to download the necessary libraries:

https://github.com/milesburton/Arduino-Temperature...

http://playground.arduino.cc/Learning/OneWire

How to connect the DS18B20 to the Arduino Nano?:

RED --> 5V

BLACK --> GND

WHITE --> D3 (digital Pin 3)

Don't forget to put a 10k pull up resistor between D3 and 5V.

Stay warm this winter: CPU Hand Warmer
Thermometer.ino699 bytes

Step 4: Success!

Stay warm this winter: CPU Hand Warmer

Now you know how to build a small CPU hand warmer. But don't try to use it to keep your beverages warm. That will not work!

Feel free to check out my Youtube channel for more awesome projects:
http://www.youtube.com/user/greatscottlab

You can also follow me on Facebook, Twitter and Google+ for news about upcoming projects and behind the scenes information:

https://twitter.com/GreatScottLab

https://www.facebook.com/greatscottlab

 
 

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