HardLabs

Pulse

thatSilentGamer·pulse·Electronics/Pulse.kicad_pcb

Pulse PCB layout, top view — open source ESP32 board by thatSilentGamer

About the Pulse PCB

Pulse is an open source ESP32 PCB design by thatSilentGamer, published on GitHub. It is a 2-layer board measuring 99.8 × 94.5 mm, with 16 components from 8 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. By type, the board carries 5 resistors, 4 capacitors, 2 connectors, 2 switches, 2 diodes and 1 IC.

From the project

A hardware macro-pad designed from scratch to provide physical control over Spotify and computer audio. This project features mechanical keyswitches, a rotary encoder for volume tracking, and an integrated display for media status.

A hardware macro-pad designed from scratch to provide physical control over Spotify and computer audio. This project features mechanical keyswitches, a rotary encoder for volume tracking, and an integrated display for media status.

Click here to view the Onshape 3D CAD Assembly & Source Files

The case is a two-part shell (top piece and bottom base) that is secured together using M2/M3 mechanical screws through internal mounting standoffs that align with the PCB's mounting holes (H1–H4). This ensures a rigid, durable enclosure that holds the electronics firmly in place without relying on…

Pulse, from the project README
From the project README

Main components on the Pulse

ESP32-WROOM-32

Pulse bill of materials (BOM)

16 components, 8 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-WROOM-32
U1
1
Conn_01x09_Pin
J1
1
Conn_01x03_Pin
J2
2
SW_Push
SW2, SW3
2
SK6812MINI
D1, D2
3
100nF
C1, C2, C4
1
1000uF
C3
5
10k
R1, R2, R3, R4, R5

Pulse design files

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

Pulse: common questions

What microcontroller does the Pulse use?

The Pulse is built around the ESP32-WROOM-32, from the ESP32 family.

How big is the Pulse PCB?

The Pulse measures 99.8 × 94.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pulse?

16 components, from 8 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 Pulse design files?

From the thatSilentGamer/pulse 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 Pulse design in my own project?

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

Can I test firmware for the Pulse 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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