DISCLAIMER
This is not a project for beginners!!! You should know how to handle Arduino Software and build electronic circuits!!!
I myself am not an expert, so please doublecheck and let me know if i made any mistakes, so others can profit from it too!!!
I do not take responsibility for any accidents that result from building this project!!!
DISCLAIMER

Hello everyone!
I designed a Baby Yoda that is controlled by an Arduino Nano and moves his arm to connect 2 prop cables (there is no Voltage on them) when i activate the Wifi socket. Parallel the Wifi socket connects to my 3D Printer, so both the Baby Yoda and my printer get activated at the same time. That makes it look like the Baby Yoda would "activate" my 3D printer with connecting his cables. pretty cool, huh?;)

You will need a few things to build this thing:

1 Printed Baby Yoda (download STL file)

1 Printed Baby Yoda Box (download STL file)

1 Arduino Code (download .ino file)

1 Arduino Nano

https://www.amazon.de/YXPCARS-Entwicklerboard-Arduino-Atmega328P-Vorgel%C3%B6tet/dp/B08L9396K1/ref=sr_1_16?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=arduino+nano&qid=1614109615&sr=8-16

1 Servo Motor

https://www.amazon.de/Longruner-Helicopter-Airplane-Controls-KY66-5/dp/B07236KYVC/ref=sr_1_5?dchild=1&keywords=Longruner+SG90+Micro+Servo+Motor&qid=1614109706&sr=8-5

1 Wifi Socket

https://www.amazon.de/gp/product/B06W586CDZ/ref=ppx_yo_dt_b_asin_image_o05_s00?ie=UTF8&psc=1

1 Multiport-Socket (plug it into the wifi socket to be able to connect two devices to it. That will let you handle the 3D Printer power supply and the signal cable for the Arduino together over the wifi socket)

https://smile.amazon.de/dp/B0888P6BTY/ref=cm_sw_r_cp_apa_i_MN7VBSH0AQB6AZ20SBGH?_encoding=UTF8&psc=1

2 USB Smartphone charger Sockets (or similar)

https://www.amazon.de/Netzteil-Ladeger%C3%A4t-Player-AGPTEK-Schwarz/dp/B07DDHGSFB/ref=sr_1_3?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=5v+0.5A+netzteil&qid=1614109834&sr=8-3

2 prop cables for the baby Yoda

2 Resistors (about 200 Ohm)

1 High Ohm resistor (i took 10 KOhm)

1 on and off switch (to turn off the Baby Yoda completely if you wish to)

https://www.amazon.de/Sourcingmap-A12013100UX0116-Schiebeschalter-50-St%C3%BCck/dp/B007QAJUUS/ref=sr_1_4?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=arduino+switch&qid=1614109869&sr=8-4

1 USB cable (for the Signal. Cut the end leading to the Baby Yoda so you can connect it to Ground and Signal Port like shown in the sketch below)

1 USB cable to power your Arduino

1 LED red
1 LED green

https://www.amazon.de/KINGSO-Leuchtdioden-Dioden-Elektronik-komponenten/dp/B01KVH6NA2/ref=sr_1_5?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=led+arduino&qid=1614109937&sr=8-5

After you soldered everything the way its suppost to be and loaded the Arduino Code onto your Arduino Nano you should double check with a multimeter and a weak power supply if the Signal cable does not carry any current but just the voltage. Also check all other cables to make sure there is no high Voltage or Current going around anywhere.

How it works (small summary):
If you activate the wifi socket the voltage in your Signal cable will rise up to the voltage provided by your USB socket (make sure its a regular Smartphone charger Socket with max. 5V). The Arduino will read the Voltage of the Signal Input Pin and set the Servo motor to position 1 and activate the green LED if Voltage=High. If Voltage=LOW he will set the Servo motor to position 2 and activate the red LED.

Update:

-Ive added a FDM "optimised" file, as the other model did not have a perfectly even bottom which would have made probelms when printing the first layer on an FDM printer.

-Ive updated the schematic and eliminated a mistake.

-Ive added a manual with a written step by step explanation.

If you want an even more detailed instruction, video tutorial, or found any mistakes in the Code or print file please let me know in the comments. Ill try my best to optimize it even further over time.