HardLabs

ULI

kmzbrnoI·uLI-pcb·uLI-05/uLI-05.kicad_pcb

ULI PCB layout, top view — open source PIC board by kmzbrnoI

About the ULI PCB

ULI is an open source PIC PCB design by kmzbrnoI, published on GitHub. It is a 2-layer board measuring 58 × 39.5 mm, with 52 components from 32 distinct parts.

Its main chip is the PIC18F14K50-EP, from the PIC family. Other key parts include the LM78M05_TO252, PC817, ADM2483xRW and USBLC6-2SC6. By type, the board carries 16 resistors, 9 diodes, 9 capacitors, 6 ICs, 5 connectors and 3 fuses.

From the project

Ultimate LI printed circuit board.

uLI – Ultimate LI PCB =====================

uLI is a XpressNET ↔ USB converter behaving as COM port in PC (CDC).

Designed in: KiCad 7 Main Processor: PIC18F14K50 Several enhancements from uLI v4, backward-compatible. - See releases/tags for a list of modifications from uLI v4. Firmware is same for v4 & v5. * Authors: Jan Horacek (c) 2024

Deprecated. Designed in: Eagle 9 Main Processor: PIC18F14K50 Authors: Jan Horacek, Michal Petrilak (c) 2016

Main components on the ULI

LM78M05_TO252PC817PIC18F14K50-EPADM2483xRWUSBLC6-2SC6

ULI bill of materials (BOM)

52 components, 32 distinct parts.

QtyPartRefs
1
LM78M05_TO252
U1
2
PC817
U2, U3
1
PIC18F14K50-EP
U4
1
ADM2483xRW
U5
1
USBLC6-2SC6
U6
1
IRF7306
Q1
1
12MHz
Y1
1
STL1550
J1
1
USB_B
J2
2
RJ25
J3, J4
1
PROG
J5
1
200/400mA
F1
1
750mA/1.5A
F2
1
100/250mA
F3
1
~
JP1
1
PINHEADER
JP2
2
1N5819
D1, D3
1
SS34
D2
1
BLUE
D4
1
RED
D5
Show 12 more
QtyPartRefs
1
SM712
D7
2
GREEN
D8, D9
1
YELLOW
D10
2
22p
C1, C2
5
100n
C3, C4, C6, C7, C8
1
470n
C5
1
22u/25V
C10
6
2k2
R1, R5, R6, R7, R8, R11
6
10k
R2, R10, R12, R14, R15, R16
2
100k
R3, R4
1
1k
R9
1
22R
R13

ULI design files

The KiCad project lives in the kmzbrnoI/uLI-pcb repository on GitHub; these links point at the commit this page was built from.

ULI: common questions

What microcontroller does the ULI use?

The ULI is built around the PIC18F14K50-EP, from the PIC family.

How big is the ULI PCB?

The ULI measures 58 × 39.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ULI?

52 components, from 32 distinct parts. The full bill of materials is listed on this page.

Where can I download the ULI design files?

From the kmzbrnoI/uLI-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ULI design in my own project?

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

Can I test firmware for the ULI without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug PIC firmware against it before you order a PCB.

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