HardLabs

Base

Galm007·KiCad-Pixy-M2·tools/autoroute/base.kicad_pcb

Base PCB layout, top view — open source ESP32 board by Galm007

About the Base PCB

Base is an open source ESP32 PCB design by Galm007, published on GitHub under the MIT license. It is a 4-layer board measuring 66 × 100 mm, with 69 components from 40 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N16, from the ESP32 family. Other key parts include the USBLC6-2SC6, AP63203WU and DRV8231ADSGR. By type, the board carries 21 resistors, 20 capacitors, 9 connectors, 6 diodes, 5 ICs and 3 switches.

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

From the project

Schematic For Our Micromouse Robot "Pixy M2"

Not a general tool. It was written for this board and hard-codes its net names, widths and the In2.Cu VBAT island.

python3 wire.py # reads base.kicadpcb, writes ../../Pixy-M2.kicadpcb python3 rework.py # reads base-routed.kicadpcb, writes ../../Pixy-M2.kicadpcb python3 check.py # per-net length / width / via report on the routed board python3 loop.py -v # motor output pair loop areas (add paths to compare boards)

Main components on the Base

ESP32-S3-WROOM-1-N16USBLC6-2SC6AP63203WUDRV8231ADSGR

Base bill of materials (BOM)

69 components, 40 distinct parts.

QtyPartRefs
1
ESP32-S3-WROOM-1-N16
U1
1
USBLC6-2SC6
U2
1
AP63203WU
U3
2
DRV8231ADSGR
DRV8231ADSG
U4, U5
1
AO4407A
Q1
1
USB_C_Receptacle_USB2.0_14P
J1
4
SM06B-SRSS-TB(LF)(SN)
SM06B-SRSS-TB
J4, J5, J6, J7
2
S6B-PH-K
J8, J9
1
SM09B-SRSS-TB
J10
1
SM06B-SRSS-TB
J11
1
7.4V
BT1
1
2920L300/15DR
3A 15V
F1
1
MF-MSMF050-2
500mA 15V
F2
2
SW_Push
SW1, SW2
1
JS102011SAQN
SW3
2
MBRA340T3G
D1, D2
1
BAT54W
D3
1
Red
D4
1
Green
D5
1
SMBJ9.0A-E3/52
SMBJ9.0A
D6
Show 20 more
QtyPartRefs
1
SRP5030T-4R7M
4.7uH SRP5030T-4R7M
L1
2
10uF 16V
C1, C15
5
0.1uF 16V
C2, C4, C5, C16, C22
1
1uF 16V
C3
2
0.1uF 25V
C6, C17
2
22uF 16V
C7, C11
1
4.7nF 1kV
C8
3
22uF 25V
C12, C19, C21
4
0.1uF 50V
C13, C14, C18, C20
2
5.1kOhm
R1, R6
7
10kOhm
R2, R12, R19, R20, R21, R22, R23
1
1MOhm
R5
1
120kOhm 1%
R7
1
24kOhm 1%
R8
1
39kOhm 1%
R9
1
470kOhm 1%
R10
1
220kOhm 1%
R11
3
2.2kOhm
R13, R15, R16
1
100kOhm
R14
2
1.5kOhm 1%
R17, R18

Base design files

The KiCad project lives in the Galm007/KiCad-Pixy-M2 repository on GitHub; these links point at the commit this page was built from.

Base: common questions

What microcontroller does the Base use?

The Base is built around the ESP32-S3-WROOM-1-N16, from the ESP32 family.

How big is the Base PCB?

The Base measures 66 × 100 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Base?

69 components, from 40 distinct parts. The full bill of materials is listed on this page.

Where can I download the Base design files?

From the Galm007/KiCad-Pixy-M2 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Base design in my own project?

Yes, under the terms of its MIT license, which Galm007 chose for the repository.

Can I test firmware for the Base 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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