HardLabs

Servo

ERC-BPGC·project-vulcan·Electronics/pcb/Servo_Pcb_Pico_D4/Servo_pcb/Servo_pcb.kicad_pcb

Servo PCB layout, top view — open source RP2040/RP2350 board by ERC-BPGC

About the Servo PCB

Servo is an open source RP2040/RP2350 PCB design by ERC-BPGC, published on GitHub. It is a 2-layer board measuring 29.4 × 37 mm, with 30 components from 11 distinct parts.

Its main chip is the ESP32-PICO-D4, from the RP2040/RP2350 family. Other key parts include the AMS1117-3.3. By type, the board carries 12 modules, 7 capacitors, 4 connectors, 3 resistors, 2 ICs and 2 switches.

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

From the project

Project VULCAN is an open humanoid robotics platform focused on expressive human-robot interaction through modular mechanical, electronic, and AI-driven subsystems. It is a humanoid robot facial structure that can interact with humans — tracking faces, expressing emotions, hearin

Project VULCAN is an open humanoid robotics platform focused on expressive human-robot interaction through modular mechanical, electronic, and AI-driven subsystems. It is a humanoid robot facial structure that can interact with humans — tracking faces, expressing emotions, hearing and speaking.

Actively undergoing infrastructure modernization and subsystem stabilization before next-generation expansion.

Main components on the Servo

ESP32-PICO-D4AMS1117-3.3

Servo bill of materials (BOM)

30 components, 11 distinct parts.

QtyPartRefs
1
ESP32-PICO-D4
U1
1
AMS1117-3.3
U2
12
Conn_01x03_Pin
M1, M2, M3, M4, M5, M6, M7, M8 +4
1
DCJ200-10-A-XX-K_REVA
J1
1
Conn_01x04_Pin
J2
2
Conn_01x02_Pin
J3, J4
2
SW_MEC_5G
SW1, SW2
3
10 uF
C1, C6, C7
3
0.1uf
C2, C3, C5
1
0.1 uF
C4
3
10k
R1, R2, R3

Servo design files

The KiCad project lives in the ERC-BPGC/project-vulcan repository on GitHub; these links point at the commit this page was built from.

Servo: common questions

What microcontroller does the Servo use?

The Servo is built around the ESP32-PICO-D4, from the RP2040/RP2350 family.

How big is the Servo PCB?

The Servo measures 29.4 × 37 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Servo?

30 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the Servo design files?

From the ERC-BPGC/project-vulcan repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Servo design in my own project?

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

Can I test firmware for the Servo without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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