HardLabs

Controller

yamamotsu·TopreSplit·controller/controller.kicad_pcb

Controller PCB layout, top view — open source AVR/Arduino board by yamamotsu

About the Controller PCB

Controller is an open source AVR/Arduino PCB design by yamamotsu, published on GitHub. It is a 2-layer board measuring 50 × 23 mm, with 35 components from 25 distinct parts.

Its main chip is the ATmega32U4-AU, from the AVR/Arduino family. By type, the board carries 9 capacitors, 9 resistors, 5 connectors, 5 diodes, 4 jumpers and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

Custom Topre Split Keyboard

Main components on the Controller

ATmega32U4-AU

Controller bill of materials (BOM)

35 components, 25 distinct parts.

QtyPartRefs
1
ATmega32U4-AU
U3
1
16MHz
Y1
1
ICSP
J1
1
USB_B_Micro
J2
1
TRRS_Jack
J3
2
6P_ZH_connector
J4, J5
1
Jumper_right_Tx
JP1
1
Jumper_right_Rx
JP2
1
Jumper_left_Rx
JP3
1
Jumper_left_Tx
JP4
1
RESET
SW1
1
D
D1
1
L
D2
1
RX
D3
1
TX
D4
1
PWR
D5
2
22p
C8, C9
1
100n
C10
2
0.1u
C11, C15
3
1u
C12, C13, C14
Show 5 more
QtyPartRefs
1
22u
C16
2
10k
R16, R21
4
1k
R17, R18, R19, R20
2
22
R22, R23
1
100k
R24

Controller design files

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

Controller: common questions

What microcontroller does the Controller use?

The Controller is built around the ATmega32U4-AU, from the AVR/Arduino family.

How big is the Controller PCB?

The Controller measures 50 × 23 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Controller?

35 components, from 25 distinct parts. The full bill of materials is listed on this page.

Where can I download the Controller design files?

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

Can I use the Controller design in my own project?

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

Can I test firmware for the Controller 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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