HardLabs

KIA-OBD2-DISPLAY

dragonnn·obd2·pcb/KIA-OBD2-DISPLAY/KIA-OBD2-DISPLAY.kicad_pcb

KIA-OBD2-DISPLAY PCB layout, top view — open source ESP32 board by dragonnn
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About the KIA-OBD2-DISPLAY PCB

KIA-OBD2-DISPLAY is an open source ESP32 PCB design by dragonnn, published on GitHub under the MIT license. It is a 4-layer board measuring 99.8 × 19.6 mm, with 72 components from 28 distinct parts.

Its main chip is the ESP32-C6-MINI-1/U, from the ESP32 family. Other key parts include the CAP1188-1-CP, TJA1050 and MCP2515-XST. By type, the board carries 19 resistors, 17 capacitors, 14 diodes, 9 ICs, 9 connectors and 2 crystals.

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

Main components on the KIA-OBD2-DISPLAY

CAP1188-1-CPTJA1050ESP32-C6-MINI-1/UMCP2515-XST

KIA-OBD2-DISPLAY bill of materials (BOM)

72 components, 28 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
~
U1, U2
1
CAP1188-1-CP
CAP1188-1-CP-TR
U4
2
TJA1050
U6, U7
1
~
U8
1
ESP32-C6-MINI-1/U
U9
2
MCP2515-XST
MCP2515-xST
U10, U11
1
BC817
Q1
2
CRYSTAL_GND24_SMALL
Crystal_GND24_Small
Y1, Y4
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J10
1
MEM2085-00-115-00-A_REV0.2
J11
7
CONN_01X01
Conn_01x01
J12, J13, J14, J15, J16, J17, J18
1
Fuse_Small
F1
9
LED
D1, D2, D3, D4, D5, D6, D7, D8 +1
1
D
D9
1
1N5819HW-7-F
D10
2
SD05_SOD323
D11, D12
1
STS521050B331-EA
D13
4
22PF
22pF
C1, C2, C3, C4
7
100NF
100nF
C5, C6, C7, C8, C9, C10, C11
4
10UF
10uF
C12, C13, C14, C17
Show 8 more
QtyPartRefs
2
100UF
100uF
C15, C16
2
R
R1, R2
9
65R
R3, R4, R5, R6, R7, R8, R9, R10 +1
2
10k
R11, R19
1
4.7k
R12
1
1k
R13
2
120R
R14, R15
2
5.1K
5.1k
R16, R17

KIA-OBD2-DISPLAY design files

The KiCad project lives in the dragonnn/obd2 repository on GitHub; these links point at the commit this page was built from.

KIA-OBD2-DISPLAY: common questions

What microcontroller does the KIA-OBD2-DISPLAY use?

The KIA-OBD2-DISPLAY is built around the ESP32-C6-MINI-1/U, from the ESP32 family.

How big is the KIA-OBD2-DISPLAY PCB?

The KIA-OBD2-DISPLAY measures 99.8 × 19.6 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the KIA-OBD2-DISPLAY?

72 components, from 28 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 KIA-OBD2-DISPLAY design files?

From the dragonnn/obd2 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 KIA-OBD2-DISPLAY design in my own project?

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

Can I test firmware for the KIA-OBD2-DISPLAY without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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