NE555 Christmas Tree

Inspired from the PCB version

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This is my first try on freeform circuit and this is inspired from the PCB version. I wanted to create something that would be a good fit for the season !

I was tempted to use an Arduino for the blinking bit but have decided to use 2 NE555 instead as an hommage to the "could have done that with a NE555" community :-)

The blinking part is using 2 NE555 circuits. The frequency of the pulse is different for each circuit so the tree has different blinking pattern. The 2 circuits are powering 2 rows of blue and white led but have common power supply

Portable Network Graphics (PNG) - 47.76 kB - 12/14/2018 at 08:04


Portable Network Graphics (PNG) - 46.16 kB - 12/13/2018 at 08:50


  • 6 × Led 3mm Blue
  • 6 × Led 3 mm White
  • 2 × NE555 Discrete Semiconductors / Power Transistors and MOSFETs
  • 2 × 220 Ohms Resistors
  • 4 × 10K Ohms Resistors

View all 9 components

  • Single power source

    vincentmakes12/14/2018 at 09:13 0 comments

    I modified the circuit to have only one power source instead of two in order to fit with the minimalism spirit. This means I now go 3D with the base ! New pictures coming up soon

  • Building the base

    vincentmakes12/13/2018 at 08:25 0 comments

    Added mirrored circuit with one NE555 each. Power supplies are separate for now

  • Tree Structure

    vincentmakes12/10/2018 at 12:56 0 comments

    First step was to create the structure of the tree and add the LEDs in a garland style. This is very tricky as the structure is desoldering when trying to solder other components on it

View all 3 project logs

  • 1
    Tree + 1 NE555

    I started by soldering together pieces of 1mm brass and copper wire, then I connected one of the ne555 circuit

  • 2
    2nd NE555

    I then put together the 2nd NE555 using a different value for the capacitor this time and I attached that part to the bas of the tree.

    Next step was to add bent rods to hold the batteries in place

  • 3
    2nd Iteration

    I then decided to modify a little bit the design to have only one set of coin cell

View all 3 instructions

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Elliot Williams wrote 01/12/2019 at 21:36 point

I could have done that with a Raspberry Pi.  :)

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vincentmakes wrote 01/14/2019 at 08:22 point

Haha, are you trying to start a counter-countermovement ? :)

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Peter wrote 12/21/2018 at 20:43 point

Very nicely done! I really like the 555 aspect of it too. 2 thumbs up!

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fid wrote 12/19/2018 at 14:16 point

Beautiful!  It caught my eye in a projects list and I had to see more.  I like its sturdy look.  It can sit almost anywhere.

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MaxwellXyao wrote 12/19/2018 at 02:56 point

Cool!I love it!

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Mike Szczys wrote 12/17/2018 at 20:23 point

Lovely! This is my kine of circuit sculpture. Feels clean and minimal, but has both an interesting circuit and behavior. Superb execution!

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vincentmakes wrote 12/18/2018 at 20:32 point

Thank you!

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Jan wrote 12/16/2018 at 11:18 point

Ah come on, you could do that with one NE555 easi... oh wait, you did! Nice :)

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vincentmakes wrote 12/16/2018 at 11:59 point

two NE555 actually :-) Thanks !

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Mark wrote 12/15/2018 at 15:43 point

great project! Especially the use of NE555 ;) 

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vincentmakes wrote 12/18/2018 at 20:32 point

Thanks sir!

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