HardLabs

Causeway THT

isandrocks·Causeway_THT

Causeway THT PCB layout, top view — open source AVR/Arduino board by isandrocks

About the Causeway THT PCB

Causeway THT is an open source AVR/Arduino PCB design by isandrocks, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 287 × 121 mm, with 162 components from 25 distinct parts.

Its main chip is the ATmega32A-P, from the AVR/Arduino family. By type, the board carries 72 switches, 71 diodes, 6 resistors, 4 capacitors, 2 connectors and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

My first keyboard DIY kit. Using the ATmega32A MCU and running QMK Custom firmware.

Causeway_THT is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License.

This PCB design may be freely reproduced, modified, and manufactured for PERSONAL USE ONLY and may not be reproduced in physical form for public sale.

If you have built upon this work and have changed the design in a significant way, the non-commercial clause can be waived.

Causeway THT, from the project README
From the project README

Main components on the Causeway THT

ATmega32A-P

Causeway THT bill of materials (BOM)

162 components, 25 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATmega32A-P
U1
1
16MHz
Y1
1
12402054M611A
J1
1
VCC
J6
2
SW_Push
BOOT1, RESET1
1
500mA
F1
1
~
ICSP1
9
SW_Cherry_MX_PCB_1.50u
SW1, SW14, SW15, SW28, SW42, SW43, SW56, SW57 +1
53
SW_Cherry_MX_1.00u_PCB
SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 +45
1
SW_Cherry_MX_1.00u_PCB
SW29
1
SW_Cherry_MX_PCB_1.50u
SW41
1
SW_Cherry_MX_PCB_3.00u
SW61
1
SW_Cherry_MX_PCB_3.00u
SW62
4
SW_Cherry_MX_PCB_1.50u_90deg
SW67, SW68, SW69, SW70
2
SW_Cherry_MX_PCB_3.00u
SW71, SW72
1
SW_Cherry_MX_PCB_1.50u_90deg
Space1
69
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +61
2
3.6V
D67, D68
2
22p
C1, C2
1
4.7u
C3
Show 5 more
QtyPartRefs
1
0.1u
C4
2
5.1k
R1, R2
2
15
R3, R4
1
10k
R5
1
1.5k
R6

Causeway THT design files

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

Causeway THT: common questions

What microcontroller does the Causeway THT use?

The Causeway THT is built around the ATmega32A-P, from the AVR/Arduino family.

How big is the Causeway THT PCB?

The Causeway THT measures 287 × 121 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Causeway THT?

162 components, from 25 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 Causeway THT design files?

From the isandrocks/Causeway_THT 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 Causeway THT design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Causeway THT 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.

Similar boards