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Iw-8-expansion

mekatrol·electronics·hardware/iw-8-expansion/iw-8-expansion.kicad_pcb

Iw-8-expansion PCB layout, top view — open source board by mekatrol
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About the Iw-8-expansion PCB

Iw-8-expansion is an open source PCB design by mekatrol, published on GitHub. It is a 2-layer board measuring 167.3 × 48.9 mm, with 86 components from 12 distinct parts.

Other key parts include the 74HCT595. By type, the board carries 24 diodes, 16 jumpers, 16 resistors, 8 transistors, 8 connectors and 1 IC.

From the project

This repository contains the electronics, embedded firmware, support software, and reference material for a collection of home-automation and workshop projects. Hardware designs are primarily created with KiCad, firmware targets Raspberry Pi Pico/Pico W and MicroPython-compatible

This repository contains the electronics, embedded firmware, support software, and reference material for a collection of home-automation and workshop projects. Hardware designs are primarily created with KiCad, firmware targets Raspberry Pi Pico/Pico W and MicroPython-compatible boards, and the host-side controller tools are written in .NET, C++, and Python.

Main components on the Iw-8-expansion

74HCT595

Iw-8-expansion bill of materials (BOM)

86 components, 12 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
74HCT595
U1
8
HXY2102EI
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8
6
CON2
J1, J2, J5, J6, J7, J8
2
Conn_02x10_Odd_Even
J3, J4
12
SparkGap
E1, E2, E3, E4, E5, E6, E7, E8 +4
8
Jumper_3_Open
JP1, JP2, JP3, JP7, JP8, JP9, JP13, JP14
8
SolderJumper_2_Bridged
JP4, JP5, JP6, JP10, JP11, JP12, JP15, JP16
8
SMAJ48CA
D1, D2, D3, D10, D11, D12, D19, D20
8
BT136S
D4, D5, D6, D13, D14, D15, D21, D22
8
LED
D7, D8, D9, D16, D17, D18, D23, D24
1
100n
C1
16
1K
R1, R2, R3, R4, R5, R6, R7, R8 +8

Iw-8-expansion design files

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

Iw-8-expansion: common questions

How big is the Iw-8-expansion PCB?

The Iw-8-expansion measures 167.3 × 48.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Iw-8-expansion?

86 components, from 12 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 Iw-8-expansion design files?

From the mekatrol/electronics 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 Iw-8-expansion design in my own project?

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

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