HardLabs

LASK V1-1

Open-Muscle·OpenMuscle-LASK5·KiCad/LASK_V1-1/LASK_V1-1.kicad_pcb

LASK V1-1 PCB layout, top view — open source ESP32 board by Open-Muscle
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About the LASK V1-1 PCB

LASK V1-1 is an open source ESP32 PCB design by Open-Muscle, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 75 × 35 mm, with 31 components from 19 distinct parts.

Its main chip is the ESP32-S3-Super Mini, from the ESP32 family. Other key parts include the TPS7A03 and LTC4054ES5-4.2. By type, the board carries 7 capacitors, 6 switches, 3 ICs, 3 connectors, 3 resistors and 1 diode.

It belongs with the iot & wireless, power & battery and sensors designs in this gallery, and the repository also holds 1 earlier revision of it.

From the project

Handheld labeler wand for training ML models on gesture inputs

Version: V3 (Proposed) Target Microcontroller: ESP32-S3-WROOM-1-N16R8 Project: OpenMuscle – Biomechanical Sensing for Prosthetics & Robotics Repository: https://github.com/turfptax/OpenMuscle-Hardware

The LASK5 board is a wearable sensor platform for real-time finger movement detection, developed as part of the OpenMuscle project. It integrates Hall effect sensors, a joystick, buttons, a low-power screen, and wireless communication via ESP32-S3.

Main components on the LASK V1-1

TPS7A03LTC4054ES5-4.2

LASK V1-1 bill of materials (BOM)

31 components, 19 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
~
U1
1
TPS7A03
U3
1
LTC4054ES5-4.2
U4
2
Conn_01x04
J1, J9
1
Conn_01x07_Pin
J6
1
Conn_01x02_Pin
BATT1
1
JST_02
BattExtLTC4054
4
A1369xUA-10
H1, H2, H3, H4
1
Conn_01x05_Pin
Joystick1
1
~
MAX1
1
SW_SPDT
SW1
5
SW_Push
SW2, SW3, SW4, SW5, SW6
1
LED GREEN
D2
4
100 nF
C1, C2, C3, C4
2
4.7uF
C6, C7
1
2.2 uF
C8
1
1K
R3
1
2.7k
R4
1
150
R5

LASK V1-1 design files

The KiCad project lives in the Open-Muscle/OpenMuscle-LASK5 repository on GitHub; these links point at the commit this page was built from.

LASK V1-1: common questions

What microcontroller does the LASK V1-1 use?

The LASK V1-1 is built around the ESP32-S3-Super Mini, from the ESP32 family.

How big is the LASK V1-1 PCB?

The LASK V1-1 measures 75 × 35 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the LASK V1-1?

31 components, from 19 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 LASK V1-1 design files?

From the Open-Muscle/OpenMuscle-LASK5 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 LASK V1-1 design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which Open-Muscle chose for the repository.

Can I test firmware for the LASK V1-1 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 OpenMuscle-LASK5

Earlier revisions in the repo: LASK-V2-0

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