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PLC RestoMod Digital I/O

akbar-q·Circuits-PCB-HardwareDesign·PLC-Hardware/PLC-Hardware.kicad_pcb

PLC RestoMod Digital I/O PCB layout, top view — open source board by akbar-q

About the PLC RestoMod Digital I/O PCB

PLC RestoMod Digital I/O is an open source PCB design by akbar-q, published on GitHub. It is a 2-layer board measuring 68.7 × 164.9 mm, with 132 components from 21 distinct parts.

Other key parts include the LM317_SOT-223, PC817, LM337_SOT223 and ULN2803A. By type, the board carries 51 resistors, 28 ICs, 24 diodes, 20 capacitors, 8 connectors and 1 buzzer.

It belongs with the audio and power & battery designs in this gallery.

From the project

This repository showcases a curated selection of my original electronics hardware designs. These projects span power electronics, RF systems, digital logic, and embedded hardware, each built with an emphasis on practical validation, clean design, and production-readiness.

This repository showcases a curated selection of my original electronics hardware designs. These projects span power electronics, RF systems, digital logic, and embedded hardware, each built with an emphasis on practical validation, clean design, and production-readiness.

With over three years of hands-on experience, I specialize in taking ideas from concept to lab-verified prototypes. My approach blends solid engineering principles with detailed testing and manufacturing-aware design. I work across the full lifecycle—from schematic capture and BOM optimization to PCB layout, fabrication…

PLC RestoMod Digital I/O, from the project README
From the project README

Main components on the PLC RestoMod Digital I/O

LM317_SOT-223PC817LM337_SOT223ULN2803A

PLC RestoMod Digital I/O bill of materials (BOM)

132 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM317_SOT-223
LM317_TO-220
U1
24
PC817
U2, U4, U5, U6, U7, U8, U9, U10 +16
1
LM337_SOT223
PC817
U3
2
ULN2803A
U17, U18
2
Conn_01x12_Pin
CON-9B1, CON-9B2
1
Conn_01x09_Male
J1
1
Conn_01x07_Male
J2
4
Conn_01x04_Pin
J3, J4, J5, J6
1
Buzzer
BZ1
14
D_Zener
D1, D2, D3, D4, D5, D6, D7, D8 +6
10
1N4007
D15, D16, D17, D18, D19, D20, D21, D22 +2
8
2.2U
C_Small
C1, C2, C3, C4, C6, C7, C8, C9
2
100N
C_Small
C5, C10
10
C_Small
C11, C12, C13, C14, C15, C16, C17, C18 +2
8
680R
1.2k
R1, R2, R3, R4, R11, R12, R13, R14
1
680R
1.2k
R5
1
680R
330
R6
8
680R
1k
R7, R8, R9, R10, R15, R16, R17, R18
7
1.2k
R19, R20, R21, R25, R26, R27, R31
17
1k
R22, R23, R24, R28, R29, R30, R36, R37 +9
Show 1 more
QtyPartRefs
9
220
R32, R33, R34, R35, R40, R42, R43, R48 +1

PLC RestoMod Digital I/O design files

The KiCad project lives in the akbar-q/Circuits-PCB-HardwareDesign repository on GitHub; these links point at the commit this page was built from.

PLC RestoMod Digital I/O: common questions

How big is the PLC RestoMod Digital I/O PCB?

The PLC RestoMod Digital I/O measures 68.7 × 164.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PLC RestoMod Digital I/O?

132 components, from 21 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 PLC RestoMod Digital I/O design files?

From the akbar-q/Circuits-PCB-HardwareDesign 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 PLC RestoMod Digital I/O design in my own project?

The repository has no license, so all rights stay with akbar-q. Use it as a reference, and ask the author before reusing the design.

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