HardLabs

Gh80-3700

evyd13·gh80-series·GH80-3700/PCB/gh80-3700.kicad_pcb

Gh80-3700 PCB layout, top view — open source AVR/Arduino board by evyd13
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About the Gh80-3700 PCB

Gh80-3700 is an open source AVR/Arduino PCB design by evyd13, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 91.9 × 149.1 mm, with 84 components from 27 distinct parts.

Its main chip is the ATMEGA32U4, from the AVR/Arduino family. Other key parts include the SRV05-4. By type, the board carries 27 relays, 24 diodes, 11 resistors, 6 capacitors, 5 connectors and 5 LEDs.

From the project

GH80-1800, GH80-3700 and GH80-3003 by Evy (aka anykeys.eu)

It's a little expansion board to be able to use a speaker or PS/2 mouse, or just to fill up that hole in the case.

You'll also need a JST SH 5 pin cable for this one. Those can be found on aliexpress or similar sites.

Gh80-3700, from the project README
From the project README

Main components on the Gh80-3700

ATMEGA32U4SRV05-4

Gh80-3700 bill of materials (BOM)

84 components, 27 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA32U4
ATmega32U4
U1
1
SRV05-4
USBLC6-2SC6
U2
1
XTAL_GND
X1
1
HRO-TYPE-C-31-M-12
J1
1
ISP
J2
1
USB
J3
1
EXP
J4
1
RGB
J5
1
C183290
Polyfuse
F1
24
KEYSW
K1, K2, K3, K4, K5, K6, K7, K8 +16
2
KEYSW
K16-1, K24-1
1
KEYSW
K21-1
1
SW_PUSH
SW1
1
Rotary_Encoder_Switch
SW2
5
LED_ALT
LED1, LED2, LED3, LED4, LED5
24
1N4148
D
D1, D2, D3, D4, D5, D6, D7, D8 +16
1
0.1U
1u
C3
1
0.1U
0.1u
C4
1
4.7U
0.1u
C5
1
0.1u
C6
Show 7 more
QtyPartRefs
1
22P
0.1u
C7
1
22P
4.7u
C8
4
1k
R1, R2, R3, R4
1
10K
1k
R5
2
22
R101, R102
2
5.1k
R103, R104
2
10k
R105, R106

Gh80-3700 design files

The KiCad project lives in the evyd13/gh80-series repository on GitHub; these links point at the commit this page was built from.

Gh80-3700: common questions

What microcontroller does the Gh80-3700 use?

The Gh80-3700 is built around the ATMEGA32U4, from the AVR/Arduino family.

How big is the Gh80-3700 PCB?

The Gh80-3700 measures 91.9 × 149.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Gh80-3700?

84 components, from 27 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Gh80-3700 design files?

From the evyd13/gh80-series repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Gh80-3700 design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which evyd13 chose for the repository.

Can I test firmware for the Gh80-3700 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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