HardLabs

IEEE-Macropad

giannawongΒ·IEEE-Macropad

IEEE-Macropad PCB layout, top view β€” open source AVR/Arduino board by giannawong

About the IEEE-Macropad PCB

IEEE-Macropad is an open source AVR/Arduino PCB design by giannawong, published on GitHub. It is a 2-layer board measuring 98.4 Γ— 76.2 mm, with 48 components from 13 distinct parts.

Its main chip is the ATMEGA32U4-A, from the AVR/Arduino family. By type, the board carries 16 LEDs, 16 diodes, 7 capacitors, 4 resistors, 1 IC and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

References & Inspiration: - ai03 PCB Design Guide - MX Switch footprint library - Other keyboard parts library - tokaku - making an osu! keypad 𝒐𝒖𝒕 𝒐𝒇 π’”π’‘π’Šπ’•π’† ⭐

Main components on the IEEE-Macropad

ATMEGA32U4-A

IEEE-Macropad bill of materials (BOM)

48 components, 13 distinct parts β€” part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA32U4-A
ATmega32U4-A
U1
1
16MHZ
16MHz
Y1
1
500MA
500mA
F1
1
SW_Push
SW1
1
MOLEX-0548190589
Molex-0548190589
USB1
16
MX-NoLED
MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX8 +8
16
SOD-123
D1, D2, D3, D4, D5, D6, D7, D8 +8
2
22PF
22pF
C1, C2
1
1UF
1uF
C3
3
0.1UF
0.1uF
C4, C5, C6
1
10UF
10uF
C7
2
10K
10k
R1, R4
2
22
R2, R3

IEEE-Macropad design files

The KiCad project lives in the giannawong/IEEE-Macropad repository on GitHub; these links point at the commit this page was built from.

IEEE-Macropad: common questions

What microcontroller does the IEEE-Macropad use?

The IEEE-Macropad is built around the ATMEGA32U4-A, from the AVR/Arduino family.

How big is the IEEE-Macropad PCB?

The IEEE-Macropad measures 98.4 Γ— 76.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the IEEE-Macropad?

48 components, from 13 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 IEEE-Macropad design files?

From the giannawong/IEEE-Macropad 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 IEEE-Macropad design in my own project?

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

Can I test firmware for the IEEE-Macropad 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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