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CAN-Bus-Car-Lights

sergimarsol·CAN-Bus-Car-Lights-PCB

CAN-Bus-Car-Lights PCB layout, top view — open source PIC board by sergimarsol

About the CAN-Bus-Car-Lights PCB

CAN-Bus-Car-Lights is an open source PIC PCB design by sergimarsol, published on GitHub under the MIT license. It is a 2-layer board measuring 126.1 × 134.1 mm, with 80 components from 44 distinct parts.

Its main chip is the PIC18F458-I/P, from the PIC family. Other key parts include the LM1117S-5.0, MCP2551-I/P, 24C02C/P, ULN2003 and L298N. By type, the board carries 18 diodes, 15 resistors, 13 connectors, 8 capacitors, 7 relays and 6 ICs.

It belongs with the rf & radio designs in this gallery.

From the project

2-layer KiCad car-lighting board: PIC18F458, CAN transceiver, relay drivers, washer motors, auto-lights

A 2-layer KiCad board that drives a car's exterior lights and headlight-washer motors from a 12 V battery, built around a PIC18F458 with CAN, USART and I²C interfaces.

Group project for Eines de Disseny (Design Tools), part of the Electronic & Telecommunications Engineering degree at the Universitat de Barcelona (spring 2023). The brief was to design the electronics module that controls a car's exterior lighting. The board had to:

CAN-Bus-Car-Lights, from the project README
From the project README

Main components on the CAN-Bus-Car-Lights

LM1117S-5.0MCP2551-I/P24C02C/PULN2003L298NPIC18F458-I/P

CAN-Bus-Car-Lights bill of materials (BOM)

80 components, 44 distinct parts.

QtyPartRefs
1
LM1117S-5.0
U1
1
MCP2551-I/P
U2
1
24C02C/P
U3
1
ULN2003
U4
1
L298N
U5
1
PIC18F458-I/P
U6
1
HC-49/U-S8192000ABJB
HC-49
Y1
1
Conn_bat
J1
1
DB9_ConnectorUSART
J2
1
DB9_ConnectorCAN
J4
1
Conn_01x03
J5
1
Conn_Motor1
J6
1
Conn_Motor2
J7
1
Conn_I.E
J8
1
Conn_Fre
J9
1
Conn_Cruce
J10
1
Conn_Largas
J11
1
Conn_Antiniebla
J12
1
Conn_Posicio
J13
1
Conn_I.D
J14
Show 24 more
QtyPartRefs
2
100n
Cdesacop1, Cdesacop8
2
100p
Cdesacop2, Cdesacop3
1
Conn_01x06
ConnectorProgramació1
1
1.5KExxA
Dtransil1
3
G5LE-14-CF_DC24
K1, K2, K4
4
G5NB-1A-DC24
K3, K5, K6, K7
1
R_Potentiometer
RV1
2
250
Rshunt1, Rshunt2
1
A3AT-91L1-00R
S1
1
SW_DIP_x09
SW1
8
1N4002
D1, D7, D9, D10, D11, D12, D13, D18
2
LED
D2, D19
8
1N4007
D3, D4, D5, D6, D14, D15, D16, D17
1
FerriteBead
FB1
3
100n
C1, C5, C8
1
100p
C2
2
1u
C3, C4
1
220n
C6
1
100n
C7
1
100
R1
4
1k
R2, R3, R5, R9
2
4.7k
R4, R7
7
22k
R6, R10, R11, R12, R13, R14, R15
1
LDR03
R8

CAN-Bus-Car-Lights design files

The KiCad project lives in the sergimarsol/CAN-Bus-Car-Lights-PCB repository on GitHub; these links point at the commit this page was built from.

CAN-Bus-Car-Lights: common questions

What microcontroller does the CAN-Bus-Car-Lights use?

The CAN-Bus-Car-Lights is built around the PIC18F458-I/P, from the PIC family.

How big is the CAN-Bus-Car-Lights PCB?

The CAN-Bus-Car-Lights measures 126.1 × 134.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the CAN-Bus-Car-Lights?

80 components, from 44 distinct parts. The full bill of materials is listed on this page.

Where can I download the CAN-Bus-Car-Lights design files?

From the sergimarsol/CAN-Bus-Car-Lights-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 CAN-Bus-Car-Lights design in my own project?

Yes, under the terms of its MIT license, which sergimarsol chose for the repository.

Can I test firmware for the CAN-Bus-Car-Lights 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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