HardLabs

Bldc

klaus-liebler·esp32-bldc-controller·pcb/bldc.kicad_pcb

Bldc PCB layout, top view — open source ESP32 board by klaus-liebler

About the Bldc PCB

Bldc is an open source ESP32 PCB design by klaus-liebler, published on GitHub under the MIT license. It is a 2-layer board measuring 58 × 60 mm, with 112 components from 61 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the DRV8323HRTAR, TP6841S6, MT6816, SRV05-4 and SP3485. By type, the board carries 46 capacitors, 22 resistors, 16 connectors, 7 ICs, 6 transistors and 6 test points.

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

From the project

* Main components are ESP32-S3, DRV8323HRTAR, 6x IRF7480

* Main components are ESP32-S3, DRV8323HRTAR, 6x IRF7480

Intgrated synchronous step down converter CAN-BUS, RS485 (both with switchable termination) USB-C, I2C All ceramic capacitors Power-LED Reset Button, Boot Button Thermal sensor breakable connector area optional MT6816 at the bottom PCB side parts available at jlcpcb, (5pcs = 113€) various GPIO; especially for external magnetic sensor desinged with KiCad with https://simplefoc.com/ in mind Four mounting holes dimensions 60mm x 52mm (63mm with big connectors) * currently COMPLETELY untested

Bldc, from the project README
From the project README

Main components on the Bldc

DRV8323HRTARESP32-S3-WROOM-1TP6841S6MT6816SRV05-4SP3485SIT3051

Bldc bill of materials (BOM)

112 components, 61 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
DRV8323HRTAR
U1
1
ESP32-S3-WROOM-1
U2
1
TP6841S6
U3
1
MT6816
U4
1
SRV05-4
U5
1
SP3485
SIT3485EUA
U7
1
SIT3051
U8
6
IRF7480M
Q1, Q2, Q3, Q4, Q5, Q6
1
A
J1
1
B
J2
1
C
J3
1
48V
J4
1
GND
J5
1
EXT_MAG
J6
1
PROG
J7
1
USB_C_RECEPTACLE_USB2.0
USB_C_Receptacle_USB2.0
J8
2
CONN_01X06
Conn_01x06
J9, J10
1
A
J11
1
B
J12
1
C
J13
Show 41 more
QtyPartRefs
1
48V
J14
1
GND
J15
1
EXT_MAG
J16
2
SW_SPDT_with_Case
SW1, SW5
1
C318884
BOOT
SW2
1
C318884
RESET
SW4
1
Thermistor
TH1
1
GHA
TP1
1
GLA
TP2
1
GHB
TP3
1
GLB
TP4
1
GHC
TP5
1
GLC
TP6
1
PSM712
D1
1
NUP2105
D6
1
C2286
Power
D7
1
10UH
10uH
L1
26
10U/50V
10u/50V
C1, C2, C3, C4, C5, C6, C7, C8 +18
2
U1/50V
u1/50V
C21, C26
6
C1525
u1
C22, C27, C33, C35, C41, C42
1
1U/50V
1u/50V
C23
1
47N/50V
47n/50V
C24
1
1U/6V3
1u/6V3
C25
1
u1
C34
2
22U
22u
C36, C37
5
10u/50V
C39, C43, C44, C45, C46
1
22U
22uF
C40
3
R001
R1, R2, R3
2
5K1
5k1
R4, R5
1
47K
47k
R6
1
15K
15k
R7
2
K12
R10, R27
1
C25076
k1
R11
3
10K
10k
R12, R18, R30
1
K22
k22
R13
2
4K7
4k7
R14, R15
1
75k
R19
1
18k
R24
2
1k
R25, R26
1
22K
22k
R28
1
1k
R29

Bldc design files

The KiCad project lives in the klaus-liebler/esp32-bldc-controller repository on GitHub; these links point at the commit this page was built from.

Bldc: common questions

What microcontroller does the Bldc use?

The Bldc is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the Bldc PCB?

The Bldc measures 58 × 60 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bldc?

112 components, from 61 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 Bldc design files?

From the klaus-liebler/esp32-bldc-controller 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 Bldc design in my own project?

Yes, under the terms of its MIT license, which klaus-liebler chose for the repository.

Can I test firmware for the Bldc 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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