HardLabs

NathanHuang Sp25 1

NHuang58·Piano_Hand_Electronics·Spring_2025/NathanHuang_Sp25_1/NathanHuang_Sp25_1.kicad_pcb

NathanHuang Sp25 1 PCB layout, top view — open source ESP32 board by NHuang58

About the NathanHuang Sp25 1 PCB

NathanHuang Sp25 1 is an open source ESP32 PCB design by NHuang58, published on GitHub. It is a 2-layer board measuring 112.7 × 89.7 mm, with 15 components from 9 distinct parts.

Its main chip is the ESP32-DEVKITC-32UE, from the ESP32 family. Other key parts include the LM2596, A4988_STEPPER_MOTOR_DRIVER and `. By type, the board carries 7 modules, 4 ICs, 2 switches, 1 connector and 1 capacitor.

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

From the project

API using Music 21 and MIDI to convert midi files and piano notes to coordinates for a piano hand

The KiCAD files have a full PCB design for the barrel jack, LM2896, motor servers, stepper motor driver, and microphone. This includes the Gerber files, drill files, and bill of materials. It also includes the libraries for the symbols and footprints used in this project.

Main components on the NathanHuang Sp25 1

ESP32-DEVKITC-32UELM2596A4988_STEPPER_MOTOR_DRIVER`

NathanHuang Sp25 1 bill of materials (BOM)

15 components, 9 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-DEVKITC-32UE
ESP32-WROOM-32
U1
1
LM2596
LM2596_BUCK_CONVERTER
U2
1
A4988_STEPPER_MOTOR_DRIVER
Pololu_Breakout_A4988
U3
1
`
~
U4
6
Motor_Servo
M1, M2, M3, M4, M5, M6
1
Stepper_Motor_bipolar
M7
1
SC2072
Barrel_Jack
J1
2
SW_SPST
SW1, SW2
1
22U
22u
C1

NathanHuang Sp25 1 design files

The KiCad project lives in the NHuang58/Piano_Hand_Electronics repository on GitHub; these links point at the commit this page was built from.

NathanHuang Sp25 1: common questions

What microcontroller does the NathanHuang Sp25 1 use?

The NathanHuang Sp25 1 is built around the ESP32-DEVKITC-32UE, from the ESP32 family.

How big is the NathanHuang Sp25 1 PCB?

The NathanHuang Sp25 1 measures 112.7 × 89.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the NathanHuang Sp25 1?

15 components, from 9 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 NathanHuang Sp25 1 design files?

From the NHuang58/Piano_Hand_Electronics 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 NathanHuang Sp25 1 design in my own project?

The repository has no license, so all rights stay with NHuang58. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the NathanHuang Sp25 1 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.

More boards in Piano_Hand_Electronics

Similar boards