
Numpad project
hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!

Collection of my small or one-time PCBs, which do not worth a standalone repository
2835 led reflector is an open-source printed circuit board by yaqwsx, from the yaqwsx/PCB repository on GitHub, published under the MIT licence. It is a 2-layer board of 50 × 45 mm with 64 parts on 26 nets, routed with 101 tracks and 0 vias.
Its parts include 48 diodes and 16 resistors.
First test of 2835 LEDs bought on AliExpress. 48 LEDs connected in 3S 16P. Power it using 12 V on the side of the board.

| Qty | Value | Footprint | References |
|---|---|---|---|
| 48 | LED | LEDs:LED-PLCC-2835 | D1, D1, D10, D10, D11, D11, D12, D12, D13, D13, D14, D14, D15, D15, D16, D16 +32 |
| 16 | R | Resistors_SMD:R_1206_HandSoldering | R1, R1, R2, R2, R3, R3, R4, R4, R5, R5, R6, R6, R7, R7, R8, R8 |
It measures 50 × 45 mm and has 2 copper layers, 1.6 mm thick.
64 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the yaqwsx/PCB repository on GitHub, at the commit this page was made from: the board is 2835_led_reflector/2835_led_reflector.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!

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