HardLabs

Headunit pi4

Jimbo145·SaabHeadUnit·circuit_boards/headunit_pi4/headunit_pi4.kicad_pcb

Headunit pi4 PCB layout, top view — open source Raspberry Pi board by Jimbo145

About the Headunit pi4 PCB

Headunit pi4 is an open source Raspberry Pi PCB design by Jimbo145, published on GitHub. It is a 2-layer board measuring 193.7 × 97.1 mm, with 19 components from 15 distinct parts.

Its main chip is the RASPBERRY_PI_4B_4GB, from the Raspberry Pi family. Other key parts include the TJA1051T and MCP2515-xSO. By type, the board carries 8 connectors, 4 ICs, 2 battery holders, 2 capacitors, 1 crystal and 1 switch.

From the project

Integrates Ibus and LCD connections to Cat V cables for routing out of ICM

Integrates Ibus and LCD connections to Cat V cables for routing out of ICM

Pi4 mounting, Lifepowered, Microphone module, power input

Parts list Raspberry Pi LCD 3.5inch touchscreen 480*800 capacitive lifepo4wered-pi+ Can Bus Module Mcp2515

leighleighleigh Patrick Van Oosterwijck and LiFePO4wered Trionic Tuning

Main components on the Headunit pi4

RASPBERRY_PI_4B_4GBTJA1051TMCP2515-xSO

Headunit pi4 bill of materials (BOM)

19 components, 15 distinct parts.

QtyPartRefs
1
RASPBERRY_PI_4B_4GB
U1
1
TJA1051T
U2
1
MCP2515-xSO
U3
1
~
U4
1
8Mhz
Y1
2
8P8C_LED_Shielded
J1, J2
1
Screw_Terminal_01x02
J3
1
Conn_01x02
J4
1
Conn_02x02_Counter_Clockwise
J5
2
Conn_02x20_Odd_Even
J6, J7
1
USB_B_Mini
J8
2
Battery_Cell
BT1, BT2
1
SW_Push
SW1
2
22p
C1, C2
1
10k
R1

Headunit pi4 design files

The KiCad project lives in the Jimbo145/SaabHeadUnit repository on GitHub; these links point at the commit this page was built from.

Headunit pi4: common questions

What microcontroller does the Headunit pi4 use?

The Headunit pi4 is built around the RASPBERRY_PI_4B_4GB, from the Raspberry Pi family.

How big is the Headunit pi4 PCB?

The Headunit pi4 measures 193.7 × 97.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Headunit pi4?

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

Where can I download the Headunit pi4 design files?

From the Jimbo145/SaabHeadUnit repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Headunit pi4 design in my own project?

The repository has no license, so all rights stay with Jimbo145. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Headunit pi4 without the hardware?

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

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