personal_thermoregulator

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personal_thermoregulator

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A wearable device for your wrist, that makes you feel colder

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# Personal Thermoregulator
When you wear this device, it makes you feel the environment colder by -probably- tricking your mind. 
To do this, it cools down your inner wrist at regular intervals by using a peltier module. When your inner wrist gets cooler, you actually feel the environment is cooler.

![Personal Thermoregulator](https://raw.githubusercontent.com/tolgaozuygur/personal_thermoregulator/main/images/personal_thermoregulator.jpg)

## Parts Required
- <a href="https://www.wemos.cc/en/latest/d1/d1_mini.html" target="_blank">1x Wemos Lolin d1 mini</a>
- <a href="https://www.wemos.cc/en/latest/d1_mini_shield/protoboard.html" target="_blank">Wemos d1 mini Protoboard Shield</a>
- <a href="https://tr.aliexpress.com/item/1005005450086963.html" target="_blank">Battery charger and booster module (3.7v charging, 5V output)</a>
- <a href="https://www.waveshare.com/product/cm4-fan-3007.htm" target="_blank">3007 5V Fan. (I used this fan because of its form factor. But you can modify the fan_holder 3d files to fit different 30mm blower fans)</a>
- 1x 18500 3.7v 1800mah Battery
- 1x 40x20mm 6v Peltier Module
- 1x IRF540N Mosfet
- 1x 150kΩ Resistor
- 1x 1kΩ Resistor
- Power switch
- 2mm screws

## Schematics
You need to set this circuit up, on a Wemos d1 mini protoboard shield. It's a bit tricky, I'll draw a proper printable pcb soon.

![Schematics](https://raw.githubusercontent.com/tolgaozuygur/personal_thermoregulator/main/images/personal_thermoregulator_bb.png)

## Thanks
I learned about this cooling effect thanks to an old startup called Wristify (I think they are called Embr Labs now). I'd like to thank them for the inspiration. I made several devices like this over the years, but this one is working great!

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