HardLabs

Arm Subsystem

lnpanini·Falali·KiCad/Arm Subsystem PCB/Arm Subsystem PCB.kicad_pcb

Arm Subsystem PCB layout, top view — open source ESP32 board by lnpanini

About the Arm Subsystem PCB

Arm Subsystem is an open source ESP32 PCB design by lnpanini, published on GitHub. It is a 2-layer board measuring 110 × 110 mm, with 20 components from 20 distinct parts.

Its main chip is the ESP32-S3-DevKitC, from the ESP32 family. By type, the board carries 12 switches, 3 connectors and 1 IC.

From the project

Connector-level references for every board (extracted from these netlists): docs/hardware/boards.md.

Connector-level references for every board (extracted from these netlists): docs/hardware/boards.md.

Every board carries schematic / PCB-layout / 3D-view images next to its sources (the Driver PCB keeps its design-history set under preview/). Thumbnails below are embedded — click any image for the full-resolution file:

More Driver PCB renders — design history (placement, routing progress, copper layers; click to open):

Main components on the Arm Subsystem

ESP32-S3-DevKitC

Arm Subsystem bill of materials (BOM)

20 components, 20 distinct parts.

QtyPartRefs
1
ESP32-S3-DevKitC
U1
1
Arm Motor X
J1
1
Arm Motor Y
J2
1
External Buck 5V and GND
J3
1
Servo X1
S1
1
Servo X2
S2
1
Servo Y1
S3
1
Servo Y2
S4
1
Limit Switch X1
SW1
1
Limit Switch Y1
SW2
1
X Limit Max
SW3
1
Limit Switch X2
SW4
1
Limit Switch Y2
SW5
1
Y Limit Min
SW6
1
X Limit Min
SW7
1
Y Limit Max
SW8
1
ToF X1
TOF1
1
ToF Y1
TOF2
1
ToF X2
TOF3
1
ToF Y2
TOF4

Arm Subsystem design files

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

Arm Subsystem: common questions

What microcontroller does the Arm Subsystem use?

The Arm Subsystem is built around the ESP32-S3-DevKitC, from the ESP32 family.

How big is the Arm Subsystem PCB?

The Arm Subsystem measures 110 × 110 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Arm Subsystem?

20 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the Arm Subsystem design files?

From the lnpanini/Falali repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Arm Subsystem design in my own project?

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

Can I test firmware for the Arm Subsystem 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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