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GPIO LCD bench adapter

TensorFleet·koyomi-lvds-hat·gpio-breakout-a2-b225/gpio_breakout.kicad_pcb

GPIO LCD bench adapter PCB layout, top view — open source board by TensorFleet

About the GPIO LCD bench adapter PCB

GPIO LCD bench adapter is an open source PCB design by TensorFleet, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 63.5 × 32 mm, with 12 components from 10 distinct parts.

Other key parts include the C460313 and TPD2EUSB30DRTR. By type, the board carries 3 ICs, 3 connectors, 2 fuses, 2 capacitors and 2 resistors.

It belongs with the dev boards & breakouts and displays & leds designs in this gallery.

From the project

Modified copy of exentio/koyomi-lvds-hat (CERN-OHL-S-2.0) with a solder mask fix for FL1/FL2

This is the Raspberry Pi 40-pin GPIO addon that drives a separately updated LCD board. It preserves the original A1 in ../gpio-breakout and does not edit any LCD driver or combined-peripheral revision. It is not a carrier-to-carrier adapter, and it is not compatible with the old Hirose LCD board.

J1 is Samtec ZF5S-40-01-T-WT-K-TR (C3169111). Its numbered contacts follow the corrected B2.25 interface: LCD power and GPIO use pins 9–40; ground contacts 5 and 8 also connect to ground. The new USB-C input J3 connects USB supply 1–4, D−6 and D+7. Connect a normal USB-A-to-C cable from the Pi USB…

Main components on the GPIO LCD bench adapter

C460313TPD2EUSB30DRTR

GPIO LCD bench adapter bill of materials (BOM)

12 components, 10 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C460313
LM66100DCKR
U1
2
TPD2EUSB30DRTR
U2, U3
1
ZF5S-40-01-T-WT-K-TR
J1
1
C5311655
Pi GPIO 2x20
J2
1
1054500101
Molex
J3
1
0.5A polyfuse 1206
F1
1
SMD1206P050TF/15
F2
1
C1592
1u 16V X7R
C1
1
C1591
100n 16V X7R
C2
2
C844791
5.1k 1%
R1, R2

GPIO LCD bench adapter design files

The KiCad project lives in the TensorFleet/koyomi-lvds-hat repository on GitHub; these links point at the commit this page was built from.

GPIO LCD bench adapter: common questions

How big is the GPIO LCD bench adapter PCB?

The GPIO LCD bench adapter measures 63.5 × 32 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the GPIO LCD bench adapter?

12 components, from 10 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 GPIO LCD bench adapter design files?

From the TensorFleet/koyomi-lvds-hat 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 GPIO LCD bench adapter design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which TensorFleet chose for the repository.

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