This model is still in progress, so expect changes to electronics and housing, but the proof of concept looks pretty cool I think.

! The leaf model is from here. I modified the part slightly to get it to fit, but otherwise that part is a direct copy from @robinwkurtz_11402. Everything else was made by me.

Parts: 

• 6x4 carbon fiber tube for the stem. (needs to be hollow for wires)
• NeoPixel ring with 24 LEDs by Adafruit
• NeoPixel ‘Jewel’ by Adafruit
• ESP32 for LED control
• Microphone (Optional for sound reactivity)
• Some M2 + M3 bolts (all cap head. length is threaded region)
  • 6 x M3 10mm [6mm to 12mm] Soil <-> Upper pot
  • 4 x M2 8mm [5mm to 9mm] Upper pot <-> Lower pot
  • 6 x M2 4mm [3mm to 6mm] ESP32 & Mic <-> Lower pot (only 4 needed if no mic)
  • (Optional) 2 x M2 4mm [3mm to 4mm] NEOP Jewel <-> Inner petals. These aren't really needed, they won't come apart barring weird tolerance issues if you get a clone jewel

Designed in OnShape: WLED Tulip document

Print the leaves one at a time. They always break when doing multiple at the same time.

License notes:

    I don't care what you do with my model, feel free to remix it, sell it, weaponize it, I don't care. However, the leaf model was shared with CC - attribution, so while it's not share alike and I am not requiring attribution, I would ask that you still credit the original author of that model (@robinwkurtz_11402).
 

Instructions:

• Solder wires to 24 LED ring
  • make sure the cables do no protrude from the top by more than ~0.8mm

• Insert LED ring into WLED Tulip - new pot - Soil and add WLED Tulip - diffuser on top
  • make sure the cables line up, it should sit flush

• Insert soil assembly into WLED Tulip - upper pot.
  • Secure with 6 x M3 10mm

• Attach WLED Tulip - inner petals and WLED Tulip - outer petals to the carbon rod. 
  • Make sure the rod does not stick out from the top

• Solder ~300mm wires onto the NeoPixel ‘jewel’
  • Consider sanding off the breakpoints around the edge, (with a mask, those particles are not good to breathe) if the next step is hard to insert.
  • Make sure the cables are angled inwards, there is not a lot of room for them to group up in the middle.

• Insert the ‘jewel’ into WLED Tulip - inner petals
  • Make sure the cables are threaded through the carbon with the same orientation as that on the jewel so they do not cross over each other.
  • Optionally secure with 2 x M2 4mm, but be sure your screws do NOT contact the legs of the WS2811 LED chips

• Insert the leaves on the bottom of the carbon rod
  • I think one WLED Tulip - small leaf and one WLED Tulip - medium leaf looks best

• Insert the rod into the soil assembly
  • Again, make sure the wires keep their orientation so they do not cross

• Trim Dupont connectors on the ESP32 dev board.
  • (if you have them)

• Solder wires together. LED power goes to VIN and GND, their data lines go to D2 and D4, but it doesn't matter which. Just take note.
  • (Optional) If using microphone, attach the mic power to the 3V3 and GND line, and the signal to D34

• Turn up the gain on the Mic, if you are using it.
  • Turn the little potentiometer all the way counter-clockwise.

• It is worth installing WLED at this point when you can access the boot button.
• Refer to the WLED docs to install and configure WLED. I recommend using the web installer at https://install.wled.me/ Just make sure you hold the boot button when starting installation. You will then need to set your LED outputs to be D2 and D4, and adjust their lengths to 7 for the ‘jewel’ and 24 for the big ring.
  • If using the microphone, set the pin to 34 and mode to analog in Usermod settings

 

• If that all works, secure the boards with M2 4mm screws.

• Attach the WLED Tulip - new pot - lower pot with the WLED Tulip - new pot - upper pot with 4 x M2 8mm screws

• All done!