Omni wheel

remmaTech12·omni-wheel·circuit/omni_wheel/omni_wheel.kicad_pcb

Omni wheel PCB layout, top view — open source ESP32 board by remmaTech12
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About the Omni wheel PCB

Omni wheel is an open source ESP32 PCB design by remmaTech12, published on GitHub under the MIT license. It is a 2-layer board measuring 91.8 × 84.9 mm, with 58 components from 28 distinct parts.

Its main chip is the ESP32-WROVER-B-N8R8, from the ESP32 family. Other key parts include the LT1963AXST-3.3, CP2102N-A02-GQFN28, BNO055 and DRV8837DSGR. By type, the board carries 20 resistors, 17 capacitors, 7 ICs, 5 connectors, 4 diodes and 3 switches.

Main components on the Omni wheel

Omni wheel bill of materials (BOM)

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

QtyPartRefs
1
LT1963AXST-3.3
LT1963AxST-3.3
Analog Devices
U1
1
ESP32-WROVER-B-N8R8
ESP32-WROVER-B
Espressif Systems
U2
1
CP2102N-A02-GQFN28
CP2102N-Axx-xQFN28
Silicon Labs
U3
1
BNO055
Bosch Sensortec
U4
3
DRV8837DSGR
DRV8837
Texas Instruments
U5, U6, U7
2
SS8050-G
Comchip Technology
Q1, Q2
1
CONN_01X02_MALE
Conn_01x02_Male
J1
1
USB_C_RECEPTACLE_USB2.0
USB_C_Receptacle_USB2.0
Amphenol Commercial Products
J2
3
CONN_01X06_MALE
Conn_01x06_Male
J3, J4, J5
2
KMR231NGLFS
SW_Push
C&K
SW1, SW2
1
DTSM-65N-V-B
SW_Push
Diptronics
SW3
2
SM0603URC
LED
Bivar
D1, D2
1
SP0503BAHTG
SP0503BAHT
Littelfuse
D3
1
CDBU70-HF
D_Schottky
Comchip Technology
D4
2
0603ZW106MAT2A
10uF
KYOCERA AVX
C1, C6
12
KAM15AR71C104KM
0.1uF
KYOCERA AVX
C2, C4, C5, C8, C9, C11, C12, C13 +4
1
0603ZD226MAT2A
22uF
KYOCERA AVX
C3
1
06036D475MAT2A
4.7uF
KYOCERA AVX
C7
1
VJ0603Y682KXBAC31X
6.8nF
Vishay / Vitramon
C10
10
MCT06030D1002BP500
10kΩ
Vishay / Beyschlag
R1, R2, R4, R12, R15, R16, R17, R18 +2
Show 8 more
QtyPartRefs
1
CRCW0603147RFKTA
147Ω
Vishay / Dale
R3
1
NTCS0603E3502HLT
5kΩ
Vishay / BC Components
R5
1
CR0603-JW-101ELF
100Ω
Bourns
R6
1
TNPW060322K1BEEA
22.1kΩ
Vishay / Dale
R7
2
CRCW06035K10FKEC
5.1kΩ
Vishay / Dale
R8, R10
1
CRCW060347K5FKEAHP
47.5kΩ
Vishay / Dale
R9
1
TNPW06032K00DEEA
2kΩ
Vishay / Dale
R11
2
CRCW06030000Z0ED
0Ω
Vishay / Dale
R13, R14

Omni wheel design files

The KiCad project lives in the remmaTech12/omni-wheel repository on GitHub; these links point at the commit this page was built from.

Omni wheel: common questions

What microcontroller does the Omni wheel use?

The Omni wheel is built around the ESP32-WROVER-B-N8R8, from the ESP32 family.

How big is the Omni wheel PCB?

The Omni wheel measures 91.8 × 84.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Omni wheel?

58 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 Omni wheel design files?

From the remmaTech12/omni-wheel 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 Omni wheel design in my own project?

Yes, under the terms of its MIT license, which remmaTech12 chose for the repository.

Can I test firmware for the Omni wheel 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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