Home made USB Tea Heater

home made usb tea water heater

Making your own USB tea heater could be an easy task for you if you just follow ohm’s law properly.
A USB socket from PC can drive 500mA current at 5V output so if you want to heat the cup you need to get a proper resistor added in between power and ground of USB. Do calculate the power by P = I x V and try to maintain approximately 2 watts that is enough for your heater,
now all you need is  a pad on what you can keep your Tea Mug and enjoy hot tea while working.
Here an old Intel chip is used for that purpose , a nice and geeky look.

Have a look at the creator’s website to get step by step instructions on how to make your own USB heater.

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