HardLabs

Merch board

kaine119·artsfest-hardware·merch-board/merch-board.kicad_pcb

Merch board layout, top view — open source RP2040/RP2350 board by kaine119

About the Merch board

Merch board is an open source RP2040/RP2350 PCB design by kaine119, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 86 × 54 mm, with 83 components from 35 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the NCP1117-3.3_SOT223, W25Q128JVS, PCM5100A, TPA6211A1DGN and CY8CMBR3116. By type, the board carries 32 capacitors, 31 resistors, 6 ICs, 5 switches, 5 diodes and 1 crystal.

It belongs with the audio designs in this gallery.

From the project

poc pcbs for artsfest thing

audio-test-board consist of an I2S DAC, connected to a headphone and speaker amp.

DAC: Texas Instruments PCM5100A I2S DAC. This feeds both the headphone and the speaker amp Headphone amp: TI TPA6139A2RGTR, Speaker amp: TI TPA6211A1DGN * Headphone jack: generic 3.5mm TRRS jack with normally-closed contacts on Tip and R1

touch-test-board breaks out an Infineon CY8CMBR3116 16-way capacitive touch sensing controller into a I2C interface, and 16 touch pads. Manufacture with ENIG for best results =)

Main components on the Merch board

NCP1117-3.3_SOT223W25Q128JVSRP2040PCM5100ATPA6211A1DGNCY8CMBR3116

Merch board bill of materials (BOM)

83 components, 35 distinct parts.

QtyPartRefs
1
NCP1117-3.3_SOT223
U1
1
W25Q128JVS
U2
1
RP2040
U3
1
PCM5100A
U4
1
TPA6211A1DGN
U5
1
CY8CMBR3116
U6
1
ABM8-272-T3
Y1
1
USB_C_Receptacle_USB2.0_16P
J2
1
Speaker
LS1
1
RK10JR010H
RV1
1
BOOTSEL
SW1
1
RESET
SW2
1
OCT_DOWN
SW3
1
OCT_UP
SW4
1
TONE_SEL
SW5
4
RED
D1, D2, D3, D4
1
WS2812B-2020
D5
2
10u
C1, C2
15
100n
C3, C4, C5, C6, C7, C8, C9, C10 +7
2
15p
C13, C14
Show 15 more
QtyPartRefs
4
1u
C15, C16, C29, C31
3
10u
C18, C19, C22
1
2.2u
C20
2
2.2n
C25, C30
3
0.22u
C26, C27, C28
2
5.1k
R1, R8
2
1k
R2, R6
1
0
R3
2
27
R4, R5
1
470
R7
2
40k
R9, R10
13
560
R11, R12, R13, R14, R15, R16, R17, R18 +5
4
100
R24, R25, R26, R31
2
330
R27, R28
2
4.7k
R29, R30

Merch board design files

The KiCad project lives in the kaine119/artsfest-hardware repository on GitHub; these links point at the commit this page was built from.

Merch board: common questions

What microcontroller does the Merch board use?

The Merch board is built around the RP2040, from the RP2040/RP2350 family.

How big is the Merch board?

The Merch board measures 86 × 54 mm, has 2 copper layers and is 0.8 mm thick.

How many components are on the Merch board?

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

Where can I download the Merch board design files?

From the kaine119/artsfest-hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Merch board design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which kaine119 chose for the repository.

Can I test firmware for the Merch board without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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