Omni wheel
remmaTech12·omni-wheel·circuit/omni_wheel/omni_wheel.kicad_pcb
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.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LT1963AXST-3.3 LT1963AxST-3.3 Analog Devices | SOT-223-3_TabPin2 | U1 |
| 1 | ESP32-WROVER-B-N8R8 ESP32-WROVER-B Espressif Systems | MODULE_ESP32-WROVER-B | U2 |
| 1 | CP2102N-A02-GQFN28 CP2102N-Axx-xQFN28 Silicon Labs | QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm | U3 |
| 1 | BNO055 Bosch Sensortec | LGA-28_5.2x3.8mm_P0.5mm | U4 |
| 3 | DRV8837DSGR DRV8837 Texas Instruments | WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm | U5, U6, U7 |
| 2 | SS8050-G Comchip Technology | SOT-23 | Q1, Q2 |
| 1 | CONN_01X02_MALE Conn_01x02_Male | PinSocket_1x02_P2.54mm_Vertical | J1 |
| 1 | USB_C_RECEPTACLE_USB2.0 USB_C_Receptacle_USB2.0 Amphenol Commercial Products | USB_C_Receptacle_Amphenol_12401610E4-2A | J2 |
| 3 | CONN_01X06_MALE Conn_01x06_Male | PinHeader_1x06_P2.54mm_Vertical | J3, J4, J5 |
| 2 | KMR231NGLFS SW_Push C&K | SW_Push_1P1T_NO_CK_KMR2 | SW1, SW2 |
| 1 | DTSM-65N-V-B SW_Push Diptronics | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW3 |
| 2 | SM0603URC LED Bivar | D_0603_1608Metric | D1, D2 |
| 1 | SP0503BAHTG SP0503BAHT Littelfuse | SOT-143 | D3 |
| 1 | CDBU70-HF D_Schottky Comchip Technology | D_0603_1608Metric | D4 |
| 2 | 0603ZW106MAT2A 10uF KYOCERA AVX | C_0603_1608Metric | C1, C6 |
| 12 | KAM15AR71C104KM 0.1uF KYOCERA AVX | C_0603_1608Metric | C2, C4, C5, C8, C9, C11, C12, C13 +4 |
| 1 | 0603ZD226MAT2A 22uF KYOCERA AVX | C_0603_1608Metric | C3 |
| 1 | 06036D475MAT2A 4.7uF KYOCERA AVX | C_0603_1608Metric | C7 |
| 1 | VJ0603Y682KXBAC31X 6.8nF Vishay / Vitramon | C_0603_1608Metric | C10 |
| 10 | MCT06030D1002BP500 10kΩ Vishay / Beyschlag | R_0603_1608Metric | R1, R2, R4, R12, R15, R16, R17, R18 +2 |
Show 8 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CRCW0603147RFKTA 147Ω Vishay / Dale | R_0603_1608Metric | R3 |
| 1 | NTCS0603E3502HLT 5kΩ Vishay / BC Components | R_0603_1608Metric | R5 |
| 1 | CR0603-JW-101ELF 100Ω Bourns | R_0603_1608Metric | R6 |
| 1 | TNPW060322K1BEEA 22.1kΩ Vishay / Dale | R_0603_1608Metric | R7 |
| 2 | CRCW06035K10FKEC 5.1kΩ Vishay / Dale | R_0603_1608Metric | R8, R10 |
| 1 | CRCW060347K5FKEAHP 47.5kΩ Vishay / Dale | R_0603_1608Metric | R9 |
| 1 | TNPW06032K00DEEA 2kΩ Vishay / Dale | R_0603_1608Metric | R11 |
| 2 | CRCW06030000Z0ED 0Ω Vishay / Dale | R_0603_1608Metric | 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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