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Openmotorbridge main

schmidtmt·openmotorbridge·hardware/kicad_main_box/openmotorbridge_main.kicad_pcb

Openmotorbridge main PCB layout, top view — open source ESP32 board by schmidtmt

About the Openmotorbridge main PCB

Openmotorbridge main is an open source ESP32 PCB design by schmidtmt, published on GitHub. It is a 4-layer board measuring 85 × 55 mm, with 35 components from 35 distinct parts.

Its main chip is the ESP32-S3-WROOM-1U, from the ESP32 family. Other key parts include the USB2514BI-AEZG, TPS54302_5V_BUCK, SW3526_USB_PD1_20W, TCAN334G_CAN and TLV75533P_3V3_LDO. By type, the board carries 9 capacitors, 8 ICs, 7 resistors, 5 connectors, 2 antennas and 2 diodes.

It belongs with the rf & radio and iot & wireless designs in this gallery.

From the project

Dieses Verzeichnis enthält die vollständigen KiCad 10 Schaltplan-, PCB- und Produktionsdateien für die drahtlose All-UWB & Pure-DC Architektur von OpenMotorBridge.

Dieses Verzeichnis enthält die vollständigen KiCad 10 Schaltplan-, PCB- und Produktionsdateien für die drahtlose All-UWB & Pure-DC Architektur von OpenMotorBridge.

Durch den konsequenten Einsatz von Ultra-Wideband (Qorvo DW3110 6.5 GHz Ch. 5, $< 0{,}4\,\text{ms}$) und Bluetooth entfällt jegliche Signal- und NF-Audioverdrahtung über den Rahmen. Der Kabelbaum besteht ausschließlich aus robusten 2-Draht-DC-Power-Peitschen (+5V/GND bzw. +12V/GND).

Main components on the Openmotorbridge main

ESP32-S3-WROOM-1UUSB2514BI-AEZGTPS54302_5V_BUCKSW3526_USB_PD1_20WTCAN334G_CANTLV75533P_3V3_LDOSW3526_USB_PD3_20WTPS7A0533_LDO

Openmotorbridge main bill of materials (BOM)

35 components, 35 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-WROOM-1U
LM5164-Q1
U1
1
USB2514BI-AEZG
ESP32-S3-WROOM-1U-N16R8
U2
1
TPS54302_5V_BUCK
ES8388_Codec
U3
1
SW3526_USB_PD1_20W
BMI270_IMU
U5
1
TCAN334G_CAN
TCAN334G
U6
1
TLV75533P_3V3_LDO
SX1262IMLTRT
U7
1
SW3526_USB_PD3_20W
DW3110
U8
1
TPS7A0533_LDO
U9
1
12V_KL15_GND
DEUTSCH_DTM12_HEADER
J1
1
MicroSD_Card
J2
1
USB2_IDC_HEADER_9PIN
J3
1
RGB_LED_3PIN
J4
1
USB_DN1_PHONE_PD20W
PWR_BAT_NTC_4PIN
J5
1
Taoglas_FXP895_868MHz_Lid
ANT1
1
Taoglas_FXUWB10_6.5GHz_Ch5_Floor
ANT2
1
SW_PAIR_RESET
SW1
1
WS2812B_RGB
D1
1
SMBJ33CA_TVS
D2
1
4.7UH_POWER_CHOKE
47uH_Inductor
L1
1
10uF_100V
C1
Show 15 more
QtyPartRefs
1
22uF_16V
C2
1
100nF_BST
C3
1
100nF_VCC
C4
1
1uF_POD1
C6
1
1uF_POD2
C7
1
100nF_MCU
C10
1
10uF_MCU
C11
1
100nF_IMU
C12
1
100k_EN
R1
1
10k_EN
R2
1
12K_RBIAS
600R_POD1
R5
1
600R_POD2
R6
1
120R_CAN
R9
1
120R_CAN
4k7_SDA
R10
1
4k7_SCL
R11

Openmotorbridge main design files

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

Openmotorbridge main: common questions

What microcontroller does the Openmotorbridge main use?

The Openmotorbridge main is built around the ESP32-S3-WROOM-1U, from the ESP32 family.

How big is the Openmotorbridge main PCB?

The Openmotorbridge main measures 85 × 55 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Openmotorbridge main?

35 components, from 35 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 Openmotorbridge main design files?

From the schmidtmt/openmotorbridge 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 Openmotorbridge main design in my own project?

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

Can I test firmware for the Openmotorbridge main 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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