HardLabs

Xmas led controller

koczadly·xmas-led-controller·hardware/Fibre tree LED controller.kicad_pcb

Xmas led controller PCB layout, top view — open source PIC board by koczadly

About the Xmas led controller PCB

Xmas led controller is an open source PIC PCB design by koczadly, published on GitHub under the MIT license. It is a 2-layer board measuring 77.5 × 67.1 mm, with 49 components from 13 distinct parts.

Its main chip is the PIC12F683-IP, from the PIC family. Other key parts include the 74HC595. By type, the board carries 23 resistors, 12 diodes, 10 transistors, 2 ICs and 2 capacitors.

From the project

Personal project to revitalise an ancient fibre optic Christmas tree using a custom-built digital LED module

Feel free to re-use or modify this project to fit your needs, or use as a reference for PCB design or PIC software development.

Total component cost: £1.15 PCB panel cost (DIY): £0.35 Total cost: £1.50 (Not including etchant, solder or original tree product)

Xmas led controller, from the project README
From the project README

Main components on the Xmas led controller

PIC12F683-IP74HC595

Xmas led controller bill of materials (BOM)

49 components, 13 distinct parts.

QtyPartRefs
1
PIC12F683-IP
U1
1
74HC595
U2
10
2N3904
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +2
1
LED-W
D1
3
LED-G
D2, D3, D4
8
LED-B
D5, D6, D7, D8, D9, D10, D11, D12
1
10nf
C1
1
1000uf
C2
10
1k
R1, R3, R7, R8, R9, R10, R11, R12 +2
1
62
R2
3
120
R4, R5, R23
1
10k
R6
8
150
R15, R16, R17, R18, R19, R20, R21, R22

Xmas led controller design files

The KiCad project lives in the koczadly/xmas-led-controller repository on GitHub; these links point at the commit this page was built from.

Xmas led controller: common questions

What microcontroller does the Xmas led controller use?

The Xmas led controller is built around the PIC12F683-IP, from the PIC family.

How big is the Xmas led controller PCB?

The Xmas led controller measures 77.5 × 67.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Xmas led controller?

49 components, from 13 distinct parts. The full bill of materials is listed on this page.

Where can I download the Xmas led controller design files?

From the koczadly/xmas-led-controller repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Xmas led controller design in my own project?

Yes, under the terms of its MIT license, which koczadly chose for the repository.

Can I test firmware for the Xmas led controller without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug PIC firmware against it before you order a PCB.

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