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VGA Zero

llegoff·VGA_Zero

VGA Zero PCB layout, top view — open source Raspberry Pi board by llegoff
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About the VGA Zero PCB

VGA Zero is an open source Raspberry Pi PCB design by llegoff, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 65 × 30 mm, with 32 components from 17 distinct parts.

Its main chip is the RaspberryPiZeroHAT, from the Raspberry Pi family. By type, the board carries 6 connectors, 6 resistors and 4 capacitors.

From the project

VGA interface for Raspberry Pi Zéro & 2,3,4

for pi400 see https://github.com/llegoff/Pi400VGA

see https://www.raspberrypi.org/documentation/hardware/raspberrypi/dpi/README.md

only the necessary bits of the dpi are redirected to the 40-pin GPIO port, with the vga565.dtbo file loaded at startup

/dts-v1/; /plugin/; /{ compatible = "brcm,bcm2708"; // There is no VGA driver module, but we need a platform device // node (that doesn't already use pinctrl) to hang the pinctrl // reference on - leds will do fragment@0 { target = ; overlay { pinctrl-names = "default"; pinctrl-0 = ; }; }; fragment@1 { target = ; overlay { vga565pins…

VGA Zero, from the project README
From the project README

VGA Zero bill of materials (BOM)

32 components, 17 distinct parts.

QtyPartRefs
1
VGA
J1
1
CONN_02X20
J2
1
AUDIO
J3
1
SPI
J4
1
BARREL_JACK
J5
1
BARREL_JACK
J6
3
8K
RB3, RG3, RR3
3
4K
RB4, RG4, RR4
3
2K
RB5, RG5, RR5
3
1K
RB6, RG6, RR6
3
499
RB7, RG7, RR7
1
16K
RG2
2
33n
C1, C3
2
10u
C2, C4
2
270
R1, R3
2
150
R2, R4
2
120
R5, R6

VGA Zero design files

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

VGA Zero: common questions

What microcontroller does the VGA Zero use?

The VGA Zero is built around the RaspberryPiZeroHAT, from the Raspberry Pi family.

How big is the VGA Zero PCB?

The VGA Zero measures 65 × 30 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the VGA Zero?

32 components, from 17 distinct parts. The full bill of materials is listed on this page.

Where can I download the VGA Zero design files?

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

Can I use the VGA Zero design in my own project?

Yes, under the terms of its CERN-OHL-1.2 license, which llegoff chose for the repository.

Can I test firmware for the VGA Zero without the hardware?

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

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