SumaShield

hugelton·SumaShield·hardware/SumaShield.kicad_pcb

About the SumaShield PCB

SumaShield is an open source RP2040/RP2350 PCB design by hugelton, published on GitHub under the MIT license. It is a 2-layer board measuring 83 × 99 mm, with 83 components from 31 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family. Other key parts include the 6N136, PT8211, 74AHCT1G125 and MCP6002-XMC. By type, the board carries 23 resistors, 19 capacitors, 17 diodes, 11 switches, 4 ICs and 4 connectors.

It belongs with the audio, displays & leds and dev boards & breakouts designs in this gallery.

From the project

audio develop kit for Pico

An open-source audio/MIDI shield platform for Raspberry Pi Pico / Pico 2

SumaShield is a stackable shield designed for the Raspberry Pi Pico and Pico 2, providing dedicated I/O for real-time audio synthesis, MIDI communication, and user interfaces. Created as a reusable embedded DSP experimentation platform, SumaShield enables developers to build custom synthesizers, sequencers, effects processors, and experimental audio instruments.

SumaShield, from the project README — From the project README

Main components on the SumaShield

6N136 PT8211 74AHCT1G125 MCP6002-XMC RaspberryPi_Pico

SumaShield bill of materials (BOM)

83 components, 31 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	6N136	DIP-8_W7.62mm	U1
1	PT8211	SOP-8_3.76x4.96mm_P1.27mm	U2
1	74AHCT1G125	SOT-23-5	U3
1	MCP6002-XMC MCP6002-xMC	SOIC-8_3.9x4.9mm_P1.27mm	U4
1	RaspberryPi_Pico	RaspberryPi_Pico_Common_THT	A1
2	SS8050	SOT-23	Q1, Q2
1	MIDI In	Jack_3.5mm_Switronic_ST-005-G_horizontal	J1
1	MIDI Out	Jack_3.5mm_Switronic_ST-005-G_horizontal	J2
1	Audio Out	Jack_3.5mm_Switronic_ST-005-G_horizontal	J4
1	1-0401FBV0T OLED TAD	PinHeader_1x04_P2.54mm_Vertical	J5
1	KNOB1 Knob1	ALPS_RK09L_Single_Vertical_15mm	RV1
1	KNOB2 Knob2	ALPS_RK09L_Single_Vertical_15mm	RV2
8	SW_Push	SW_Cherry_MX_1.00u_Plate	SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8
1	A	SW_PUSH_6mm	SW10
1	B	SW_PUSH_6mm	SW11
1	Rst	SW_PUSH_1P1T_6x3.5mm_H5.0_APEM_MJTP1250	SW12
9	1N4148WS	D_SOD-323	D1, D2, D3, D4, D5, D6, D7, D8 +1
8	SK6812MINI	LED_SK6812MINI_Through	D10, D11, D12, D13, D14, D15, D16, D17
1	47U 47u	C_0603_1608Metric	C1
5	100N 100n	C_0603_1608Metric	C2, C9, C16, C18, C19

Show 11 more

Qty	Part	Footprint	Refs
2	1000P 1000p	C_0603_1608Metric	C3, C6
2	470P 470p	C_0603_1608Metric	C4, C7
2	10U 10u	CP_Elec_6.3x5.4_Nichicon	C5, C8
5	10N 10n	C_0603_1608Metric	C10, C11, C12, C13, C14
2	0.01U 0.01u	C_0603_1608Metric	C15, C17
3	220	R_0603_1608Metric	R1, R4, R7
4	1k	R_0603_1608Metric	R2, R3, R6, R24
10	10K 10k	R_0603_1608Metric	R5, R15, R16, R17, R18, R19, R20, R21 +2
1	10	R_0603_1608Metric	R10
4	7.5K 7.5k	R_0603_1608Metric	R11, R12, R13, R14
1	330	R_0603_1608Metric	R25

SumaShield design files

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

SumaShield: common questions

What microcontroller does the SumaShield use?

The SumaShield is built around the RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the SumaShield PCB?

The SumaShield measures 83 × 99 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the SumaShield?

83 components, from 31 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 SumaShield design files?

From the hugelton/SumaShield 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 SumaShield design in my own project?

Yes, under the terms of its MIT license, which hugelton chose for the repository.

Can I test firmware for the SumaShield 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.