HardLabs

Decoder

ksmonkey123·moba3·pcbs/switch_decoder/decoder.kicad_pcb

Decoder PCB layout, top view — open source AVR/Arduino board by ksmonkey123

About the Decoder PCB

Decoder is an open source AVR/Arduino PCB design by ksmonkey123, published on GitHub under the MIT license. It is a 2-layer board measuring 97.5 × 67.1 mm, with 66 components from 18 distinct parts.

Its main chip is the ATmega328P-AU, from the AVR/Arduino family. Other key parts include the 74HC595, MIC4427 and MAX481E. By type, the board carries 20 resistors, 12 transistors, 12 diodes, 10 ICs, 5 connectors and 3 capacitors.

From the project

3rd generation moba control

Main components on the Decoder

ATmega328P-AU74HC595MIC4427MAX481E

Decoder bill of materials (BOM)

66 components, 18 distinct parts.

QtyPartRefs
1
ATmega328P-AU
U1
2
74HC595
U2, U10
6
MIC4427
U3, U5, U6, U7, U8, U9
1
MAX481E
U4
12
2N7002
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +4
1
16MHz
Y1
2
Screw_Terminal_01x06
J1, J3
1
AVR-ISP-6
J2
2
RJ45_LED_Shielded
J4, J5
1
POWER
POWER1
1
SW_DIP_x06
SW1
1
LED
LED1
12
B120-E3
D1, D2, D3, D4, D5, D6, D7, D8 +4
2
10pF
C1, C2
1
220uF
C3
15
10k
R1, R2, R3, R4, R5, R6, R9, R10 +7
1
2k
R8
4
1k
R18, R19, R20, R21

Decoder design files

The KiCad project lives in the ksmonkey123/moba3 repository on GitHub; these links point at the commit this page was built from.

Decoder: common questions

What microcontroller does the Decoder use?

The Decoder is built around the ATmega328P-AU, from the AVR/Arduino family.

How big is the Decoder PCB?

The Decoder measures 97.5 × 67.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Decoder?

66 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the Decoder design files?

From the ksmonkey123/moba3 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Decoder design in my own project?

Yes, under the terms of its MIT license, which ksmonkey123 chose for the repository.

Can I test firmware for the Decoder without the hardware?

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

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