HardLabs

Retro pad

Alexwatson-de·retro-pad

This repository ships a schematic but no board layout.

About the Retro pad PCB

Retro pad is an open source AVR/Arduino PCB design by Alexwatson-de, published on GitHub. It is a board, with 27 components from 10 distinct parts.

Its main chip is the ATtiny814-SS, from the AVR/Arduino family. By type, the board carries 11 resistors, 2 connectors, 1 IC, 1 diode and 1 capacitor.

It belongs with the retro computing designs in this gallery.

From the project

RetroPad is a handheld gaming controller designed using a fully code-driven engineering workflow. Instead of relying solely on traditional CAD software for manual modeling, the complete mechanical design was created programmatically using Python and Build123D. This approach allow

RetroPad is a handheld gaming controller designed using a fully code-driven engineering workflow. Instead of relying solely on traditional CAD software for manual modeling, the complete mechanical design was created programmatically using Python and Build123D. This approach allows the design to be fully parametric, reproducible, and easy to modify.

The project demonstrates the integration of software engineering principles with mechanical design by generating 3D models through code, exporting manufacturing-ready files, assembling components programmatically, and preparing the design for…

Main components on the Retro pad

ATtiny814-SS

Retro pad bill of materials (BOM)

27 components, 10 distinct parts.

QtyPartRefs
1
ATtiny814-SS
U1
1
DE9_Pins
J1
1
AVR-UPDI-6
J2
9
SW_Push
BTN1, BTN2, BTN3, DOWN1, JUMP1, LEFT1, RAPID1, RIGHT1 +1
2
MountingHole_Pad
H1, H2
1
RAPID
D1
1
0.1uF
C1
5
1K
R1, R2, R4, R5, R6
1
330
R3
5
0
R7, R8, R9, R10, R11

Retro pad design files

The KiCad project lives in the Alexwatson-de/retro-pad repository on GitHub; these links point at the commit this page was built from.

Retro pad: common questions

What microcontroller does the Retro pad use?

The Retro pad is built around the ATtiny814-SS, from the AVR/Arduino family.

How many components are on the Retro pad?

27 components, from 10 distinct parts. The full bill of materials is listed on this page.

Where can I download the Retro pad design files?

From the Alexwatson-de/retro-pad repository on GitHub, which has a netlist; the links under Design files point to each one.

Can I use the Retro pad design in my own project?

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

Can I test firmware for the Retro pad 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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