HardLabs

TouchBoard

8-Lambda-8·ShowControllPCBs·touchBoard/touchBoard.kicad_pcb

TouchBoard PCB layout, top view — open source Microchip SAM board by 8-Lambda-8

About the TouchBoard PCB

TouchBoard is an open source Microchip SAM PCB design by 8-Lambda-8, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 132.9 × 130 mm, with 277 components from 11 distinct parts.

Its main chip is the ATSAMD21G18A-A, from the Microchip SAM family. Other key parts include the AMS1117-3.3. By type, the board carries 164 diodes, 96 switches, 8 capacitors, 2 ICs, 1 connector and 1 inductor.

It belongs with the audio designs in this gallery.

From the project

A collection of PCBs for controlling other show hardware via MIDI or OSC

A collection of PCBs with faders, buttons, encoders (and so on ...) for usage in an MIDI or OSC controller

Main components on the TouchBoard

ATSAMD21G18A-AAMS1117-3.3

TouchBoard bill of materials (BOM)

277 components, 11 distinct parts.

QtyPartRefs
1
ATSAMD21G18A-A
U1
1
AMS1117-3.3
U2
1
USB_C_16P
J1
4
~
TS1, TS2, TS3, TS4
96
TestPoint_2Pole
Touch1, Touch2, Touch3, Touch4, Touch5, Touch6, Touch7, Touch8 +88
164
SK6812MINI
D1, D2, D3, D4, D5, D6, D7, D8 +156
1
1uH
L1
1
1uF
C1
4
100nF
C2, C3, C6, C8
3
10uF
C4, C5, C7
1
1k
R1

TouchBoard design files

The KiCad project lives in the 8-Lambda-8/ShowControllPCBs repository on GitHub; these links point at the commit this page was built from.

TouchBoard: common questions

What microcontroller does the TouchBoard use?

The TouchBoard is built around the ATSAMD21G18A-A, from the Microchip SAM family.

How big is the TouchBoard PCB?

The TouchBoard measures 132.9 × 130 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the TouchBoard?

277 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the TouchBoard design files?

From the 8-Lambda-8/ShowControllPCBs repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the TouchBoard design in my own project?

Yes, under the terms of its GPL-3.0 license, which 8-Lambda-8 chose for the repository.

Can I test firmware for the TouchBoard without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Microchip SAM firmware against it before you order a PCB.

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