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Hardware IO 16 8 1

PPUC·Hardware_IO_16_8_1·IO_16_8_1/IO_16_8_1.kicad_pcb

Hardware IO 16 8 1 PCB layout, top view — open source RP2040/RP2350 board by PPUC
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About the Hardware IO 16 8 1 PCB

Hardware IO 16 8 1 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 100 × 100 mm, with 217 components from 46 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the ADM3483, W25Q128JVSIQ, LMV321, SN74AHCT1G125 and AP2112K-3.3. By type, the board carries 97 resistors, 49 capacitors, 32 transistors, 16 diodes, 9 connectors and 6 ICs.

From the project

Hardware for the generic I/O Board for PPUC

All inputs can also be used as signal-outputs (if programmed accordingly). The output is internally pulled up by a 10k resistor to 5 V. A higher voltage can be applied externally (max. 30 V) but be sure to have your hardware and software! setup correctly as no protection for damage is provided in that case. A maximum of 2 mA can be sinked/sourced.

The inputs In2 and In3 are designed for higher speed (100 kHz). The Pull-Up can be soldered to other pads to be pulled to 3,3 V (instead of 5 V). An input capacitance can be added (soldered) for better noise immunity but lower speed. Since version…

Hardware IO 16 8 1, from the project README
From the project README

Main components on the Hardware IO 16 8 1

ADM3483W25Q128JVSIQRP2040LMV321SN74AHCT1G125AP2112K-3.3

Hardware IO 16 8 1 bill of materials (BOM)

217 components, 46 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ADM3483
U1
1
W25Q128JVSIQ
U2
1
RP2040
U3
1
LMV321
U4
1
SN74AHCT1G125
U5
1
AP2112K-3.3
U6
20
2N7002
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +12
4
AO3400A
Q13, Q14, Q15, Q16
8
NCE0140KA
Q25, Q26, Q27, Q28, Q29, Q30, Q31, Q32
1
C9002
12MHz,18pF
Y1
8
Conn_01x06
J1, J5, J6, J7, J8, J9, J10, J11
1
USB_C_RECEPTACLE_USB2.0
USB_C_Receptacle_USB2.0
J4
1
T6A
F2
3
Jumper_2_Open
JP1, JP2, JP3
1
C318884
Reset
SW1
1
C318884
Boot
SW2
1
C54950
ADDRESS
SW3
2
SD15
D1, D2
1
C2297
LED gn
D3
2
C191023
1A
D4, D16
Show 26 more
QtyPartRefs
1
SMAJ5.0
D5
1
SD05
D6
8
MRA4004T3G
D7, D8, D9, D10, D11, D12, D13, D14
1
SMAJ60
D15
20
100N
100n
C1, C3, C5, C8, C9, C10, C11, C12 +12
6
10U
10u
C2, C4, C20, C23, C26, C40
2
27PF
27pF
C6, C7
2
1u
C16, C21
1
C37308
100µ 16V
C25
16
470P
470p
C28, C29, C30, C31, C32, C33, C34, C35 +8
1
3300µ 63V
C56
1
C14663
100n 50V
C57
46
10K
10k
R1, R7, R8, R26, R33, R36, R37, R38 +38
11
100R
R2, R15, R82, R83, R84, R88, R89, R90 +3
2
620
R3, R5
1
120R
R4
4
1k
R6, R12, R16, R20
1
0
R9
2
27
R10, R11
1
33K
33k
R13
4
2k
R14, R18, R19, R23
1
5k
R17
1
470
R21
5
3k
R22, R34, R35, R40, R41
2
5K1
5k1
R24, R25
16
330
R27, R28, R29, R30, R31, R32, R45, R46 +8

Hardware IO 16 8 1 design files

The KiCad project lives in the PPUC/Hardware_IO_16_8_1 repository on GitHub; these links point at the commit this page was built from.

Hardware IO 16 8 1: common questions

What microcontroller does the Hardware IO 16 8 1 use?

The Hardware IO 16 8 1 is built around the RP2040, from the RP2040/RP2350 family.

How big is the Hardware IO 16 8 1 PCB?

The Hardware IO 16 8 1 measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Hardware IO 16 8 1?

217 components, from 46 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 16 8 1 design files?

From the PPUC/Hardware_IO_16_8_1 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 16 8 1 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 16 8 1 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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