HardLabs

Discipad

coseyfannitutti·discipad

Discipad PCB layout, top view — open source AVR/Arduino board by coseyfannitutti

About the Discipad PCB

Discipad is an open source AVR/Arduino PCB design by coseyfannitutti, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 76.3 × 122.8 mm, with 54 components from 19 distinct parts.

Its main chip is the ATmega328P-PU, from the AVR/Arduino family. By type, the board carries 19 diodes, 17 switches, 6 resistors, 5 capacitors, 1 IC and 1 crystal.

From the project

17-key numpad assembled with only through hole components, including usb type-c

BOM, Build Guide, and Flashing Information

Discipad, from the project README
From the project README

Main components on the Discipad

ATmega328P-PU

Discipad bill of materials (BOM)

54 components, 19 distinct parts.

QtyPartRefs
1
ATmega328P-PU
U1
1
Crystal
Y1
1
AVR-ISP-6
J1
1
BOOT
BOOT1
1
500mA
F1
1
RESET
RESET1
14
KEYSW
SW0, SW1, SW2, SW3, SW4, SW5, SW6, SW8 +6
2
KEYSW
SW7, SW14
1
KEYSW
SW15
1
USB_C_GCT_USB4085
USB1
17
—
D1, D2, D3, D4, D5, D6, D7, D8 +9
2
3.6V
D18, D19
2
22p
C1, C2
1
4.7u
C3
2
0.1u
C4, C5
1
1.5K
R1
2
5.1K
R2, R3
2
75R
R4, R5
1
10K
R6

Discipad design files

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

Discipad: common questions

What microcontroller does the Discipad use?

The Discipad is built around the ATmega328P-PU, from the AVR/Arduino family.

How big is the Discipad PCB?

The Discipad measures 76.3 × 122.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Discipad?

54 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the Discipad design files?

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

Can I use the Discipad design in my own project?

Yes, under the terms of its GPL-3.0 license, which coseyfannitutti chose for the repository.

Can I test firmware for the Discipad 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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