HardLabs

Io base

coon42·stmbl_otter·hw/kicad/bob/ethernet_bob/io_base/io_base.kicad_pcb

Io base PCB layout, top view — open source board by coon42
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About the Io base PCB

Io base is an open source PCB design by coon42, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 100 × 100 mm, with 98 components from 14 distinct parts.

Other key parts include the OPTO-TRANSISTOR-4, VN808 and ACT4088. By type, the board carries 42 resistors, 29 diodes, 10 connectors, 10 capacitors, 6 ICs and 1 inductor.

It belongs with the robotics & motion and wearables designs in this gallery.

From the project

- For some reason you need exactly this compiler: gcc-arm-none-eabi-54-2016q3 - On any newer gcc version, the board does not boot after flashing !? - Adjust path in TOOLCHAIN variable in toolchain.mak** file - The board works correctly if the green LED lights up. When receiving d

- For some reason you need exactly this compiler: gcc-arm-none-eabi-54-2016q3 - On any newer gcc version, the board does not boot after flashing !? - Adjust path in TOOLCHAIN variable in toolchain.mak** file - The board works correctly if the green LED lights up. When receiving data over UART the LED flashes blue.

- Bridge pins for DFU mode while plugging in USB cable - Flash by using the following command:

Io base, from the project README
From the project README

Main components on the Io base

OPTO-TRANSISTOR-4VN808ACT4088

Io base bill of materials (BOM)

98 components, 14 distinct parts.

QtyPartRefs
3
OPTO-TRANSISTOR-4
U1, U2, U3
2
VN808
U4, U5
1
ACT4088
U6
7
CONN_01X08
P1, P2, P3, P4, P5, P6, P7
2
CONN_02X25
P8, P9
1
CONN_01X02
P10
28
LED
D1, D2, D3, D4, D5, D6, D7, D8 +20
1
B240A
D29
1
4.7µH 1.5A
L1
8
100n
C1, C2, C3, C4, C5, C6, C7, C8
2
10µ
C9, C10
40
R
R1, R2, R3, R4, R5, R6, R7, R8 +32
1
10k
R41
1
50k
R42

Io base design files

The KiCad project lives in the coon42/stmbl_otter repository on GitHub; these links point at the commit this page was built from.

Io base: common questions

How big is the Io base PCB?

The Io base measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Io base?

98 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the Io base design files?

From the coon42/stmbl_otter repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Io base design in my own project?

Yes, under the terms of its GPL-3.0 license, which coon42 chose for the repository.

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