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RC Car Main Onboard

cjg-1·FPV-RC-CAR·Mainboard PCB/KiCad Project/RC Car Design - Control On-Board.kicad_pcb

RC Car Main Onboard PCB layout, top view — open source ESP32 board by cjg-1
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About the RC Car Main Onboard PCB

RC Car Main Onboard is an open source ESP32 PCB design by cjg-1, published on GitHub. It is a 4-layer board measuring 147.3 × 78.1 mm, with 51 components from 31 distinct parts.

Its main chip is the ESP32-S3-DEVKITC-1U-N8R8, from the ESP32 family. Other key parts include the LM2596S-5, HT7333_UPDATED_VOUT_PO, NRF24L01_BREAKOUT and BTS7960. By type, the board carries 17 resistors, 14 capacitors, 6 ICs, 6 connectors, 4 diodes and 2 inductors.

It belongs with the iot & wireless and robotics & motion designs in this gallery.

From the project

A wireless FPV control system for RC vehicles featuring real-time video transmission and custom embedded power management. Enables immersive first-person vehicle teleoperation with low-latency wireless architecture.

This project features an RC Car controlled by radio frequency signals and is able to send FPV video feed live to an Oculus Meta headset.

All non-moving pieces are 3D printed, all the electricals are PCB designed, and all instructions are coded into the PCB.

The car is controlled with Double Wishbone suspension and uses Ackermann Steering.

The car uses 3 different voltages, 3.3V, 5V, and 12V:

Main components on the RC Car Main Onboard

ESP32-S3-DEVKITC-1U-N8R8LM2596S-5HT7333_UPDATED_VOUT_PONRF24L01_BREAKOUTBTS7960

RC Car Main Onboard bill of materials (BOM)

51 components, 31 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-DEVKITC-1U-N8R8
U1
1
LM2596S-5
U2
1
HT7333_UPDATED_VOUT_PO
HT7333_Updated_VOUT_PO
U3
1
NRF24L01_BREAKOUT
NRF24L01_Breakout
U4
2
BTS7960
U5, U6
1
IRF4905PBF
Q1
1
XT60PW-F
J1
1
Camera Terminal Plug
J2
2
Servo
J3, J6
1
MOTOR_1
Motor_1
J4
1
MOTOR_2
Motor_2
J5
1
30A
F1
2
WL-TMRC_3MM
D1, D4
1
1N5245B
D2
1
SB540
D3
1
600Ω@100MHz
FB1
1
SLF12565T-680M2R0-PF
L1
1
100 nF
C1
1
330µF
C2
4
100NF
100nF
C3, C5, C6, C8
Show 11 more
QtyPartRefs
3
1000µF
C4, C10, C13
1
220µF
C7
2
470µF
C9, C14
2
470NF
470nF
C11, C12
2
330Ω
R1, R3
1
100kΩ
R2
1
27 kΩ
R4
1
100 kΩ
R5
4
1kΩ
R7, R8, R11, R13
2
5.1 kΩ
R10, R15
6
10kΩ
R16, R17, R18, R19, R20, R21

RC Car Main Onboard design files

The KiCad project lives in the cjg-1/FPV-RC-CAR repository on GitHub; these links point at the commit this page was built from.

RC Car Main Onboard: common questions

What microcontroller does the RC Car Main Onboard use?

The RC Car Main Onboard is built around the ESP32-S3-DEVKITC-1U-N8R8, from the ESP32 family.

How big is the RC Car Main Onboard PCB?

The RC Car Main Onboard measures 147.3 × 78.1 mm, has 4 copper layers and is 1.600198 mm thick.

How many components are on the RC Car Main Onboard?

51 components, from 31 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 RC Car Main Onboard design files?

From the cjg-1/FPV-RC-CAR 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 RC Car Main Onboard design in my own project?

The repository has no license, so all rights stay with cjg-1. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the RC Car Main Onboard 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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