Rotating LED Christmas Tree

by MelnEdgars in Circuits > LEDs

1354 Views, 7 Favorites, 0 Comments

Rotating LED Christmas Tree

Rotating LED Christmas Tree + Arduino Wireless Power Transfer

Hi! I made this cool looking rotating LED Christmas tree with my 10 and 12 year old relatives from cheap and easy to get parts.

My video in YoutTube is in 3 parts(3 level of difficulty) so I hope that also experienced hobbyist will find it intresting because I showed how to use wireless power trasnsfer to blink LEDs.

Get All Parts and Tools

vlcsnap-2018-12-30-15h47m36s18.png

Parts:

1.DC fan -> get from old PC or: https://www.amzn.com/B072NCYQRY

2.Pen(or something similar)

3.CR battery holder -> https://amzn.com/B00GYW39KG

4.CR batterys -> https://www.amzn.com/5294000075

5.LEDs -> https://www.amzn.com/B01GE4WGTS

6.220R resistors -> https://www.amzn.com/B0185FKG1Y

7.Tinned copper wire -> from PC PSU common mode inductors or: https://www.amzn.com/B01M3580TQ

8.Hot glue stick -> https://www.amzn.com/B000PCY91O

9.Solder -> https://www.amzn.com/B075WB98FJ

Tools:

1.Solder iron -> https://www.amzn.com/B01N413T8U


Solder All Connections

Capture.JPG
vlcsnap-2018-12-31-21h54m08s235.png

Solder LED anode to resistor and cathode to battery ground. Use stiff tinned copper wires that you can salvage from old power supplies. Repeat this step for all branches of Cristmas tree.

Put It Together

vlcsnap-2018-12-30-15h53m08s194.png

Hot glue your branches (LED+ resistor) to pen or something similar. This will be body of Christmas tree. Then hot glue it to DC fan.

Enjoy :)

vlcsnap-2018-12-30-15h45m40s148.png

Power it up and enjoy. Put in on your window sill so all your neighbors could see it. This looks much more cooler than typical window candle lights ;)