Arduino based heartbeat follower light

PrefaceB
station real video: https://www.bilibili.com/video/BV1vN411m71F?share_source=copy_webThe
shape of the heart is made of brass wire mesh. All electronic components are safely hidden inside the heart and powered by a lithium battery.
I soldered the entire shell into a ground wire to facilitate the subsequent connection of RGB lights and the routing of the battery. Without further ado, here comes the component list.
 
Preparations
3D printing mold (end of the article)
arduino nano development board
copper wire (0.8mm, 1mm)
type-c charging module, choose your own
lithium battery 3.7V
ws2812B 9 pieces are needed, buy more spare
max30102
soldering station, solder wire, flux, etc.
By the way, remember double-sided tape and tape mini switch
precautions
Okay, the preparations are ready, and the following is the long welding.
Don't weld together, weld separately.
 
 
This is the welding of LEDs, remember to read the data sheet of the lamp, distinguish between power and signal.
 
 
 
 
 
 
This is the routing of the circuit
 
. This is the design of my power supply. I welded the negative pole directly to the lamp shell.
 
 
 
 
After welding, the only thing left is assembly. Remember to wash it with board washing water. max30102 is easy to break. That's what I think. In order to understand it, I have bought 4. Here are some detailed pictures.
 
 
 
 
 
[1]
3D printed heart model: https://www.cgtrader.com/free-3d-models/character/anatomy/love-low-poly
[2]
Article source: https://www.instructables.com/id/Beating-LED-Heart/
[3]
Patreon: https://www.patreon.com/jiripraus
[4]
Jiri Praus personal website: www.jiripraus.cz
 
 
 
Okay, that’s about all I have to say. Everyone, keep working hard. If you don’t know how to do it, you can ask on Bilibili.