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McQueen

0BitsnBytes·McQueen·PCB/Custom ESC.kicad_pcb

McQueen PCB layout, top view — open source STM32 board by 0BitsnBytes
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About the McQueen PCB

McQueen is an open source STM32 PCB design by 0BitsnBytes, published on GitHub under the GPL-3.0 license. It is a 6-layer board measuring 100.5 × 101.5 mm, with 137 components from 43 distinct parts.

Its main chip is the U?, from the STM32 family. Other key parts include the IR21084, INA180A2, LM2596S-ADJ, SL78M05 and ET52333. By type, the board carries 63 resistors, 24 capacitors, 18 diodes, 11 ICs, 6 transistors and 5 connectors.

It belongs with the robotics & motion, power & battery and sensors designs in this gallery.

From the project

an overpowered rc car that poses a danger to my safety :)

McQueen is an AWD RC car with 4 drone-hub-motors. Featuring a DIY 80A ESC with current sense and braking. A fully custom double wishbone suspension with an aerodynamic chassis all powered by 2 6S Lipo batteries.

Most RC cars are seen as toys, McQueen is definitely not one of those. It is an attempt to combine high current electronics, aerodynamic bodies, and complex suspension geometries into a small RC Car.

McQueen, from the project README
From the project README

Main components on the McQueen

U?IR21084INA180A2LM2596S-ADJSL78M05ET52333CD4052BOUPUT

McQueen bill of materials (BOM)

137 components, 43 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
U?
MCU1
3
IR21084
U1, U3, U5
3
INA180A2
U2, U4, U6
1
LM2596S-ADJ
U11
1
SL78M05
U14
1
ET52333
U15
1
CD4052B
U16
1
OUPUT
A1
6
DMT10H009LK3-13
Q1, Q2, Q3, Q4, Q5, Q6
2
CONN_01X04_PIN
Conn_01x04_Pin
J1, J5
2
CONN_01X02_SOCKET
Conn_01x02_Socket
J2, J4
1
CONN_01X05_PIN
Conn_01x05_Pin
J3
1
OUPUT
B1
1
SW_DIP_X02
SW_DIP_x02
SW1
6
NCU18XH103F6SRB
TH1, TH2, TH3, TH4, TH5, TH6
3
ES1C
D1, D5, D9
10
LED_Small_Filled
D2, D4, D6, D8, D10, D12, D14, D15 +2
3
D_TVS_Filled
D3, D7, D11
1
SS34
D13
1
LED_RAGB
D18
Show 23 more
QtyPartRefs
1
68UH
68uH
L1
1
OUPUT
C1
1
1000UF
1000uf
C2
1
10UF
10uf
C3
3
1.1NF
1.1nF
C4, C5, C6
3
C_Polarized_Small
C7, C11, C15
4
0.47UF
0.47uF
C8, C12, C16, C24
7
0.1UF
0.1uF
C9, C10, C13, C14, C17, C18, C22
1
470UF
470uF
C19
1
220UF
220uF
C20
1
0.33UF
0.33uF
C21
1
1UF
1uF
C23
6
18kΩ
R1, R2, R3, R5, R7, R9
9
100Ω
R4, R6, R8, R14, R15, R28, R29, R42 +1
4
1kΩ
R10, R11, R12, R56
6
10Ω
R13, R17, R27, R31, R41, R45
3
THT
R16, R30, R44
11
330Ω
R18, R24, R32, R38, R46, R52, R57, R58 +3
15
5mΩ
R19, R20, R21, R22, R23, R33, R34, R35 +7
6
10kΩ
R25, R26, R39, R40, R53, R54
1
14kΩ
R55
1
470Ω
R62
1
47Ω
R63

McQueen design files

The KiCad project lives in the 0BitsnBytes/McQueen repository on GitHub; these links point at the commit this page was built from.

McQueen: common questions

What microcontroller does the McQueen use?

The McQueen is built around the U?, from the STM32 family.

How big is the McQueen PCB?

The McQueen measures 100.5 × 101.5 mm, has 6 copper layers and is 1.6 mm thick.

How many components are on the McQueen?

137 components, from 43 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 McQueen design files?

From the 0BitsnBytes/McQueen 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 McQueen design in my own project?

Yes, under the terms of its GPL-3.0 license, which 0BitsnBytes chose for the repository.

Can I test firmware for the McQueen without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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