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Casa cactus speaker

pablogs9·casa_cactus_speaker·hardware/kicad_makespace_tutorial.kicad_pcb

Casa cactus speaker PCB layout, top view — open source ESP32 board by pablogs9

About the Casa cactus speaker PCB

Casa cactus speaker is an open source ESP32 PCB design by pablogs9, published on GitHub. It is a 2-layer board measuring 64.5 × 22.5 mm, with 24 components from 16 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N4R2, from the ESP32 family. Other key parts include the AMS1117-3.3, 5k1 and MAX98357AETE+T. By type, the board carries 6 resistors, 5 ICs, 5 LEDs, 4 capacitors and 3 connectors.

It belongs with the audio designs in this gallery.

From the project

Casa Cactus Speaker

Repository for a project featuring an ESP32-S3 and an I2S Class D amplifier for audio playback.

Created for a Makespace Madrid session to demonstrate a complete PCB design workflow, from schematic to JLCPCB fabrication.

Casa cactus speaker, from the project README
From the project README

Main components on the Casa cactus speaker

AMS1117-3.35k1MAX98357AETE+TESP32-S3-WROOM-1-N4R2

Casa cactus speaker bill of materials (BOM)

24 components, 16 distinct parts.

QtyPartRefs
1
AMS1117-3.3
U1
2
5k1
U2, U3
1
MAX98357AETE+T
U4
1
ESP32-S3-WROOM-1-N4R2
U5
1
Screw_Terminal_01x02
J1
1
Conn_01x08_Pin
J2
1
Conn_02x03_Counter_Clockwise
J3
1
TYPE-C-31-M-12
USBC1
1
FC-2012HRK-620D
LED1
1
XL-2012UGC
LED2
3
WS2812B-2020
LED3, LED4, LED5
2
22u (Tantalum)
C1, C2
1
10u
C3
1
0.1u
C6
3
100
R1, R3, R8
3
DNP
R4, R5, R6

Casa cactus speaker design files

The KiCad project lives in the pablogs9/casa_cactus_speaker repository on GitHub; these links point at the commit this page was built from.

Casa cactus speaker: common questions

What microcontroller does the Casa cactus speaker use?

The Casa cactus speaker is built around the ESP32-S3-WROOM-1-N4R2, from the ESP32 family.

How big is the Casa cactus speaker PCB?

The Casa cactus speaker measures 64.5 × 22.5 mm, has 2 copper layers and is 1.09 mm thick.

How many components are on the Casa cactus speaker?

24 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the Casa cactus speaker design files?

From the pablogs9/casa_cactus_speaker repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Casa cactus speaker design in my own project?

The repository has no license, so all rights stay with pablogs9. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Casa cactus speaker 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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