How to make Filament dryer from scratch (Arduino + Code)

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You can find this object on Thingiverse: www.thingiverse.com/thing:465...
If you need some of the components used in this project you can find the links down below.
This is a filament dryer you can easily make at home recycling the box in which you receive the filament spool.
Following the instructions in the video you can make an arduino interface that you can use to select the temperature you want to reach and other parameters.
In this project we have used a hairdryer, arduino, a display for arduino (1602), DHT22, relay and a rotary encoder(ky-040). All the other parts are 3D printed.
Parts:
Arduino Uno: it.banggood.com/custlink/vG3h...
Arduino Display: it.banggood.com/custlink/GDKE...
DHT22: it.banggood.com/custlink/m3Ky...
Relays: it.banggood.com/custlink/KKDE...
Rotary Encoder: it.banggood.com/custlink/DGmy...
The only component you need to make is a manifold for the hairdryer.
The diameter that you have to use is 52mm about 2 inches.
We don’t take any responsibilities on any improper use of this object.

[@justliberty4072]

So, you used an Arduino and wrote some code. Very helpful.

[@alinioanmoroi1370]

Why you can't share the code?

[@timhofstetter5654]

All of this is super-easy to program. You only need to #include the right libraries for most of it... and write very little of it.
Don't bother trying to write it from the screenshots. That way leads to madness. Just learn to write good code and figure it out. It isn't rocket science. :D

[@youth03]

Hi can u pls share the code for this project please am very interested and noob with coding. Thank you

[@3diyproject]

You can find the code in the video. We are sorry but we can't send it to you.

[@youth03]

The code looks like 2 parts?

[@Dosclic98FPV]

Amazing. The programmer who wrote the code should work at Gulugulu (Indian Google)