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ModuleController

dennis9819·split-flap-controller·cad/Schematics/module_controller/ModuleController.kicad_pcb

ModuleController PCB layout, top view — open source AVR/Arduino board by dennis9819

About the ModuleController PCB

ModuleController is an open source AVR/Arduino PCB design by dennis9819, published on GitHub under the AGPL-3.0 license. It is a 2-layer board measuring 68.3 × 90 mm, with 20 components from 14 distinct parts.

Its main chip is the ATmega8A-A, from the AVR/Arduino family. Other key parts include the ULN2003, A1101xLH and SN75176AP. By type, the board carries 8 capacitors, 4 ICs, 4 resistors, 2 connectors, 1 crystal and 1 fuse.

It belongs with the displays & leds designs in this gallery.

From the project

Sourcecode and Schematics for the controller of my split-flap display

Welcome to split-flap-controller, the firmware + hardware design for driving a modular, scalable split-flap display system.

Development of this project began in 2024 with the goal of creating a robust, DIY split-flap display that anyone can build and customize themselves. Inspired by the iconic Frankfurt Airport display, this project aims to recreate the nostalgic mechanical aesthetic and characteristic flipping sound that made those displays so memorable.

ModuleController, from the project README
From the project README

Main components on the ModuleController

ULN2003A1101xLHSN75176APATmega8A-A

ModuleController bill of materials (BOM)

20 components, 14 distinct parts.

QtyPartRefs
1
ULN2003
U1
1
A1101xLH
U2
1
SN75176AP
U3
1
ATmega8A-A
U4
1
16,0000-HC49U-S
Y1
1
JST B5B-XH-A
J1
1
2x08 Edge Connector
J6
1
RXEF010
F1
1
10u 35V
C1
1
10u 16V
C2
2
22p
C3, C4
4
100n
C5, C6, C7, C8
3
10k
R1, R2, R4
1
1k
R3

ModuleController design files

The KiCad project lives in the dennis9819/split-flap-controller repository on GitHub; these links point at the commit this page was built from.

ModuleController: common questions

What microcontroller does the ModuleController use?

The ModuleController is built around the ATmega8A-A, from the AVR/Arduino family.

How big is the ModuleController PCB?

The ModuleController measures 68.3 × 90 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ModuleController?

20 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the ModuleController design files?

From the dennis9819/split-flap-controller repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ModuleController design in my own project?

Yes, under the terms of its AGPL-3.0 license, which dennis9819 chose for the repository.

Can I test firmware for the ModuleController 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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