HardLabs

Evj55

hpeyerl·evj55·kicad_projects/cm4io_radxa_hat/cm4io_radxa_hat.kicad_pcb

Evj55 PCB layout, top view — open source Raspberry Pi board by hpeyerl
Simulate this board

About the Evj55 PCB

Evj55 is an open source Raspberry Pi PCB design by hpeyerl, published on GitHub under the BSD-2-Clause license. It is a 2-layer board measuring 99.1 × 89.8 mm, with 72 components from 22 distinct parts.

Its main chip is the Radxa CM3 rk3566, from the Raspberry Pi family. By type, the board carries 11 capacitors, 7 resistors, 4 transistors and 1 connector.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

Files related to my EV conversion project.

A HAT for a Raspberry Pi, in this case a CM4IO carrier with a RadXA CM3 module connected to a Waveshare 12.3 TOUCHA display, and a Waveshare dual CAN hat.

Note: The version pictured below has the RJ45 connector backwards. This is fixed in the current version which has not been fabbed.

RevUS Parking Brake controller status LED inputs. Up to 4 MagRide outputs for ride control (GM coils) GPS input Dual daisy-chained CAN (RJ-45) Center-Diff-Lock status input. HF2A Transfer case Lo-Range status input. HF2A transfer case VSS input. Dimmer status input (for day/night modes)

Evj55, from the project README
From the project README

Evj55 bill of materials (BOM)

72 components, 22 distinct parts — part numbers from the project's BOM.

QtyPartRefs
4
AOD4184A
Q1, Q2, Q3, Q4
1
Radxa CM3 rk3566
J1
5
100uF
C_IN1, C_MR1, C_MR2, C_MR3, C_MR4
1
.1uf 50v
C_IN2
7
BAT54S
D_CDL_CL1, D_DIM_CL1, D_EPB_GRN_CL1, D_EPB_RED_CL1, D_IGN_CL1, D_TCL_CL1, D_VSS_CL1
4
UF5408
D_MR1, D_MR2, D_MR3, D_MR4
1
SMBJ18A
D_TVS1
1
BZT52C15
D_Z1
1
RJ45
J_CAN1
1
rr
J_CAN_WS1
1
Screw_Terminal_01x04
J_GPS1
1
Screw_Terminal_01x05
J_MR1
1
Screw_Terminal_01x02
J_PWR1
1
FDD4685
Q_REV1
9
R_10k
R_CDL_HI1, R_CDL_PULL1, R_DIM_HI1, R_EPB_GRN_HI1, R_EPB_RED_HI1, R_IGN_HI1, R_TCL_HI1, R_VSS_HI1 +1
7
R2.7k
R_CDL_LO1, R_DIM_LO1, R_EPB_GRN_LO1, R_EPB_RED_LO1, R_IGN_LO1, R_TCL_LO1, R_VSS_LO1
4
R10
R_MR1_G1, R_MR2_G2, R_MR3_G3, R_MR4_G4
4
R10K
R_MR1_PD1, R_MR2_PD2, R_MR3_PD3, R_MR4_PD4
6
C_F 100nF
C1, C2, C4, C5, C6, C7
1
C_F 10nF
C3
Show 2 more
QtyPartRefs
4
1uf/50v/0805
C8, C9, C10, C11
7
R_1K
R3, R4, R5, R6, R7, R8, R9

Evj55 design files

The KiCad project lives in the hpeyerl/evj55 repository on GitHub; these links point at the commit this page was built from.

Evj55: common questions

What microcontroller does the Evj55 use?

The Evj55 is built around the Radxa CM3 rk3566, from the Raspberry Pi family.

How big is the Evj55 PCB?

The Evj55 measures 99.1 × 89.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Evj55?

72 components, from 22 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 Evj55 design files?

From the hpeyerl/evj55 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 Evj55 design in my own project?

Yes, under the terms of its BSD-2-Clause license, which hpeyerl chose for the repository.

Can I test firmware for the Evj55 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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