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Pmod charlcd

fm4dd·pmod-charlcd·kicad/pmod-charlcd.kicad_pcb

Pmod charlcd PCB layout, top view — open source board by fm4dd

About the Pmod charlcd PCB

Pmod charlcd is an open source PCB design by fm4dd, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 67 × 50 mm, with 26 components from 13 distinct parts.

Other key parts include the SGM6603-5.0 and TXB0104. By type, the board carries 11 capacitors, 5 connectors, 4 ICs, 4 resistors and 1 inductor.

It belongs with the displays & leds designs in this gallery.

From the project

PMOD module for connecting a HD44780-compatible character LCD

This PMOD interfaces a HD44780-compatible 5V character LCD module via two PMOD connectors. This design connects all 8 data signal lines, and allows to run the LCD in both 4-bit and 8-bit mode. The build-in level converter boosts the 3.3V PMOD power and signal levels to 5V. Its physical size matches LCD modules types such as the Sunlike HUOB-XA-G-G. The additional 7x2 socket can interface with LCD displays using the 7x2 dual-row connector type. The resistor RV1 controls the contrast.

Pmod charlcd, from the project README
From the project README

Main components on the Pmod charlcd

SGM6603-5.0TXB0104

Pmod charlcd bill of materials (BOM)

26 components, 13 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SGM6603-5.0
U1
3
TXB0104
U2, U3, U4
2
PMOD
J1, J2
1
CharLCD_Header
J3
1
CharLCD Header
J4
1
Backlight
J5
1
10K
RV1
1
4.7UH
4.7uH
L1
8
0.1uF
C1, C2, C6, C7, C8, C9, C10, C11
2
10uF
C3, C4
1
100UF
100uF
C5
3
10K
R1, R2, R3
1
100
R4

Pmod charlcd design files

The KiCad project lives in the fm4dd/pmod-charlcd repository on GitHub; these links point at the commit this page was built from.

Pmod charlcd: common questions

How big is the Pmod charlcd PCB?

The Pmod charlcd measures 67 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pmod charlcd?

26 components, from 13 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 Pmod charlcd design files?

From the fm4dd/pmod-charlcd 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 Pmod charlcd design in my own project?

Yes, under the terms of its CERN-OHL-1.2 license, which fm4dd chose for the repository.

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