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Led dimmer

oskarengdahl·Elita-electrical-system·hardware/led-dimmer/led_dimmer.kicad_pcb

Led dimmer PCB layout, top view — open source Microchip SAM board by oskarengdahl

About the Led dimmer PCB

Led dimmer is an open source Microchip SAM PCB design by oskarengdahl, published on GitHub. It is a 2-layer board measuring 30 × 44 mm, with 25 components from 15 distinct parts.

Its main chip is the ATSAMD21G18A-AUT, from the Microchip SAM family. Other key parts include the LD1117S33TR_SOT223. By type, the board carries 9 resistors, 5 capacitors, 2 ICs, 2 transistors, 2 connectors and 2 diodes.

From the project

A project for the electrical system for Elita, the Joker S30 sailboat.

Main components on the Led dimmer

ATSAMD21G18A-AUTLD1117S33TR_SOT223

Led dimmer bill of materials (BOM)

25 components, 15 distinct parts.

QtyPartRefs
1
ATSAMD21G18A-AUT
U1
1
LD1117S33TR_SOT223
U2
1
Q_NMOS_GSD
Q3
1
Q_PMOS_GDS
Q4
1
USB_B_Micro
J1
1
Screw_Terminal_01x04
J2
1
5A
F1
1
Rotary_Encoder_Switch
SW1
1
SWD_TAGCONNECT
SWD1
2
D_Small
D1, D2
5
C_Small
C1, C3, C4, C5, C6
2
10k
R1, R2
5
1k
R3, R6, R7, R8, R9
1
100k
R4
1
Dummy
R5

Led dimmer design files

The KiCad project lives in the oskarengdahl/Elita-electrical-system repository on GitHub; these links point at the commit this page was built from.

Led dimmer: common questions

What microcontroller does the Led dimmer use?

The Led dimmer is built around the ATSAMD21G18A-AUT, from the Microchip SAM family.

How big is the Led dimmer PCB?

The Led dimmer measures 30 × 44 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Led dimmer?

25 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the Led dimmer design files?

From the oskarengdahl/Elita-electrical-system repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Led dimmer design in my own project?

The repository has no license, so all rights stay with oskarengdahl. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Led dimmer without the hardware?

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

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