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ILM139CD

EDrTech·ILM139C·pcb_src/v1.0.0/ILM139C_driver/prod/ILM139C_panel4x4.kicad_pcb

ILM139CD PCB layout, top view — open source board by EDrTech

About the ILM139CD PCB

ILM139CD is an open source PCB design by EDrTech, published on GitHub under the CERN-OHL-P-2.0 license. It is a 4-layer board measuring 120 × 88 mm, with 68 components from 15 distinct parts.

Other key parts include the IS31FL3741A-QFLS4-TR, HC-1.0-4PWT-B-HW and BTC-3215-BN02. By type, the board carries 45 resistors, 11 capacitors, 7 ICs, 4 connectors and 1 jumper.

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

From the project

https://github.com/user-attachments/assets/0ada246c-68c4-4b34-9f10-4a2aee3bf7c3

https://github.com/user-attachments/assets/0ada246c-68c4-4b34-9f10-4a2aee3bf7c3

                   

- Very small footprint of 26mm18mm - 13x9 RBG LED matrix - 1mm1mm LEDs, with 2mm pitch - IS31FL3741A Driver - 2.7V~5.5V Operating voltage - QWIIC Connector - Selectable i2c address - Removable driver/matrix boards - Separate power supply connector

ILM139CD, from the project README
From the project README

Main components on the ILM139CD

IS31FL3741A-QFLS4-TRHC-1.0-4PWT-B-HWBTC-3215-BN02

ILM139CD bill of materials (BOM)

68 components, 15 distinct parts.

QtyPartRefs
1
IS31FL3741A-QFLS4-TR
U1
2
HC-1.0-4PWT-B-HW
U2, U3
4
BTC-3215-BN02
U4, U5, U6, U7
2
HC-1.0-2PWT
CN1, CN2
2
AXE540127D
CN5, CN6
1
Jumper_2_Bridged
JP1
4
100nF
C1, C4, C6, C7
3
1uF
C2, C3, C5
3
22uF
C8, C9, C10
1
22uF
C11
26
20
R1, R2, R5, R6, R8, R9, R11, R12 +18
13
51
R3, R4, R7, R10, R13, R16, R19, R22 +5
1
100K
R40
1
10K
R41
4
0
R42, R43, R44, R45

ILM139CD design files

The KiCad project lives in the EDrTech/ILM139C repository on GitHub; these links point at the commit this page was built from.

ILM139CD: common questions

How big is the ILM139CD PCB?

The ILM139CD measures 120 × 88 mm, has 4 copper layers and is 0.7912 mm thick.

How many components are on the ILM139CD?

68 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the ILM139CD design files?

From the EDrTech/ILM139C repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the ILM139CD design in my own project?

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

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