
u/4b686f61

WS2812 2020 matrix on an aluminum core PCB for better thermal performance
Has anyone ever tried this before?
16x22 matrix for 352 leds, fits nicely into the ali express specials waterproof clear enclosure. I opted to manually place the LEDs as I can get 1000 of them for less that $20 CAD.
Idle current around 100mA
Maximum possible current draw is 7A (25 watts) at 5V, full brightness
This is open source (will update post with github)
how much current can this thicc solder handle
and how hot did that tiny soldering iron have to get?
just a bunch of leds soldered onto a printed circuit board
How did I do for this high current PCB?
What I have here is a high power latching relay module with it's ESP32 controller.
Sn99Ag0.3Cu0.7 with rosin core flux then wait a bit then leaded solder for the blobs. For the baseline, 10awg copper wire is soldered on top as to conduct the current. It's a 4 layer PCB with really thicc traces. I tried just using the leaded solder (no flux core) and it went everywhere.
The black PCBs in the background are being used to hold other PCBs for the solder stencil. The green one pictured is the latest and best version.
As for the flair, most of my designs are for SMT components...
49932
"a distraction a day keeps the depression away" /s worse time to be born
dead
suffering builds character, enjoying life leaves one unprepared
edit: found it in ddg search