Hardware IO 16x8 matrix

PPUC·Hardware_IO_16x8_matrix·IO_16x8_matrix/IO_16x8_matrix.kicad_pcb

About the Hardware IO 16x8 matrix PCB

Hardware IO 16x8 matrix is an open source RP2040/RP2350 PCB design by PPUC, published on GitHub under the TAPR-OHL-1.0 license. It is a 2-layer board measuring 97.6 × 67.3 mm, with 202 components from 41 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the ADM3483, W25Q128JVSIQ, SN74AHCT1G125, AP2112K-3.3 and LM339. By type, the board carries 92 resistors, 58 capacitors, 23 diodes, 10 ICs, 8 transistors and 6 connectors.

From the project

Hardware for a Switch Matrix Board for PPUC

Main components on the Hardware IO 16x8 matrix

ADM3483 W25Q128JVSIQ RP2040 SN74AHCT1G125 AP2112K-3.3 LM339 LMV321

Hardware IO 16x8 matrix bill of materials (BOM)

202 components, 41 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	ADM3483	SOIC-8_3.9x4.9mm_P1.27mm	U1
1	W25Q128JVSIQ	SOIC-8_5.23x5.23mm_P1.27mm	U2
1	RP2040	QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm	U3
1	SN74AHCT1G125	SOT-23-5	U4
1	AP2112K-3.3	SOT-23-5	U5
4	LM339	SOIC-14_3.9x8.7mm_P1.27mm	U6, U7, U8, U9
1	LMV321	SOT-23-5	U14
8	MMBT3904	SOT-23	Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8
1	12MHz,18pF	Crystal_SMD_3225-4Pin_3.2x2.5mm	Y1
2	CONN_01X06 Conn_01x06	Terminal_Block_RTMPin	J1, J4
1	USB_C_RECEPTACLE_USB2.0 USB_C_Receptacle_USB2.0	USB_C_Receptacle_XKB_U262-16XN-4BVC11	J3
1	CONN_01X09 Conn_01x09	Molex_KK-396_5273-09A_1x09_P3.96mm_Vertical	J6
2	CONN_01X10 Conn_01x10	Molex_KK-396_5273-10A_1x10_P3.96mm_Vertical	J8, J9
1	JUMPER_2_OPEN Jumper_2_Open	PinHeader_1x02_P2.54mm_Vertical	JP1
1	Reset	SW_SPST_SKQG_WithStem	SW1
1	Boot	SW_SPST_SKQG_WithStem	SW2
1	ADDRESS	SW_DIP_SPSTx04_Slide_6.7x11.72mm_W8.61mm_P2.54mm_LowProfile	SW3
2	SD15	D_SOD-323	D1, D2
2	1A	D_SOD-323	D3, D23
1	LED gn	LED_0805_2012Metric	D4

Show 21 more

Qty	Part	Footprint	Refs
1	SMAJ5.0	D_SMA	D5
1	SD05	D_SOD-323	D6
16	1N4148WS	D_SOD-323	D7, D8, D9, D10, D11, D12, D13, D14 +8
39	100N 100n	C_0402_1005Metric	C1, C3, C5, C8, C9, C10, C11, C12 +31
6	10U 10u	C_0603_1608Metric	C2, C4, C17, C21, C24, C33
2	27PF 27pF	C_0402_1005Metric	C6, C7
2	1u	C_0402_1005Metric	C13, C18
1	100µ 35V	CP_Elec_6.3x7.7	C22
8	10N 10n	C_0603_1608Metric	C25, C26, C27, C28, C29, C30, C31, C32
22	10K 10k	R_0603_1608Metric	R1, R7, R8, R10, R11, R18, R38, R39 +14
18	100R	R_0603_1608Metric	R2, R15, R40, R41, R46, R47, R52, R53 +10
1	120R	R_0603_1608Metric	R4
5	1k	R_0402_1005Metric	R6, R14, R19, R58, R62
1	0	R_0603_1608Metric	R9
2	27	R_0402_1005Metric	R12, R13
2	5K1 5k1	R_0603_1608Metric	R16, R17
32	1k	R_0603_1608Metric	R20, R21, R22, R23, R24, R25, R26, R27 +24
6	2k	R_0603_1608Metric	R36, R37, R57, R60, R61, R64
1	33K 33k	R_0603_1608Metric	R56
1	5k	R_0603_1608Metric	R59
1	3k	R_0603_1608Metric	R63

Hardware IO 16x8 matrix design files

The KiCad project lives in the PPUC/Hardware_IO_16x8_matrix repository on GitHub; these links point at the commit this page was built from.

LayoutIO_16x8_matrix/IO_16x8_matrix.kicad_pcb
SchematicIO_16x8_matrix/IO_16x8_matrix.kicad_sch
BOMIO_16x8_matrix/production/bom.csv

Hardware IO 16x8 matrix: common questions

What microcontroller does the Hardware IO 16x8 matrix use?

The Hardware IO 16x8 matrix is built around the RP2040, from the RP2040/RP2350 family.

How big is the Hardware IO 16x8 matrix PCB?

The Hardware IO 16x8 matrix measures 97.6 × 67.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Hardware IO 16x8 matrix?

202 components, from 41 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 Hardware IO 16x8 matrix design files?

From the PPUC/Hardware_IO_16x8_matrix 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 Hardware IO 16x8 matrix design in my own project?

Yes, under the terms of its TAPR-OHL-1.0 license, which PPUC chose for the repository.

Can I test firmware for the Hardware IO 16x8 matrix 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.