2 layers80 × 80 mm
ButtonMatrixBoard panelized
8-Lambda-8/ShowControllPCBs
A collection of PCBs for controlling other show hardware via MIDI or OSC
104 partsGPL-3.0
2 layers132.9 × 130 mm
TouchBoard
8-Lambda-8/ShowControllPCBsA collection of PCBs for controlling other show hardware via MIDI or OSC
- Size
- 132.9 × 130 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 292
- Nets
- 212
- Pads
- 985
- Tracks, vias
- 875, 180
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 17 Jan 2024
- Updated
- 19 Jun 2026
Overview
TouchBoard is an open-source printed circuit board by 8-Lambda-8, from the 8-Lambda-8/ShowControllPCBs repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 132.9 × 130 mm with 292 parts on 212 nets, routed with 875 tracks and 180 vias.
It is built around the ATSAMD21G18A-AU, AMS1117-3.3 and SK6812MINI-E. Its parts include 164 diodes, 8 capacitors, 2 ICs, 1 resistor and 1 connector. It belongs with the audio and music boards and the SAM D and SAM boards of this library.
Main components
3
ATSAMD21G18A-AU
TQFP-48-40℃~+85℃ 1.62V~3.6V 10bit 12bit 256KB 32 Bit 32KB 38 48MHz ARM Cortex-M0+ Built-in FLASH 上电复位(POR)、欠压检测(BOR/LVD/LVR/LVI)、看门狗复位、内置通用定时器、硬件CRC、日历功能、触控功能 TQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SK6812MINI-E
SMD-40℃~+85℃ 0.6mA 1.78mm 120mcd~240mcd 120° 160mcd~320mcd 1kHz 2.8mm 2000V 3.2mm 3.7V~5.5V 460nm~470nm 515nm~525nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Semi-transparent lens SMD RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
README
README.mdA collection of PCBs with faders, buttons, encoders (and so on ...) for usage in an MIDI or OSC controller
Interactive BOMs:
Parts
292| Qty | Value | Footprint | References |
|---|---|---|---|
| 164 | SK6812MINI | Library:LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm | D1, D10, D11, D100, D101, D102, D103, D104, D105, D106, D107, D108, D109, D110, D111, D112 +148 |
| 96 | TestPoint_2Pole | Library:TouchButton | Touch1, Touch2, Touch10, Touch11, Touch12, Touch13, Touch14, Touch15, Touch16, Touch17, Touch18, Touch19, Touch20, Touch21, Touch22, Touch23 +80 |
| 4 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3, C6, C8 |
| 4 | ~ | Library:TouchSlider | TS1, TS2, TS3, TS4 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5, C7 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 1uH | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | ATSAMD21G18A-A | Package_QFP:TQFP-48_7x7mm_P0.5mm | U1 |
| 1 | CS | TestPoint:TestPoint_Pad_D1.5mm | TP7 |
| 1 | GND | TestPoint:TestPoint_Pad_D1.5mm | TP4 |
| 1 | LED | TestPoint:TestPoint_Pad_D1.5mm | TP11 |
| 1 | MISO | TestPoint:TestPoint_Pad_D1.5mm | TP10 |
| 1 | MOSI | TestPoint:TestPoint_Pad_D1.5mm | TP9 |
| 1 | RST | TestPoint:TestPoint_Pad_D1.5mm | TP1 |
| 1 | SCLK | TestPoint:TestPoint_Pad_D1.5mm | TP8 |
| 1 | SWCLK | TestPoint:TestPoint_Pad_D1.5mm | TP3 |
| 1 | SWDIO | TestPoint:TestPoint_Pad_D1.5mm | TP2 |
| 1 | USB_C_16P | Connector_USB:USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J1 |
| 1 | USB_D+ | TestPoint:TestPoint_Pad_D1.5mm | TP5 |
| 1 | USB_D- | TestPoint:TestPoint_Pad_D1.5mm | TP6 |
The 288 most common of 292 parts.
Questions
How big is the TouchBoard PCB?
It measures 132.9 × 130 mm and has 2 copper layers, 1.6 mm thick.
What parts does the TouchBoard use?
292 parts, built around the ATSAMD21G18A-AU, AMS1117-3.3 and SK6812MINI-E. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the TouchBoard KiCad files?
From the 8-Lambda-8/ShowControllPCBs repository on GitHub, at the commit this page was made from: the board is touchBoard/touchBoard.kicad_pcb and its schematic CAT_XLR/CAT_XLR.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the TouchBoard design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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