HardLabs

Esp32audio

ppisljar·freeesp32_audioplayer·main_board/esp32audio.kicad_pcb

Esp32audio PCB layout, top view — open source ESP32 board by ppisljar

About the Esp32audio PCB

Esp32audio is an open source ESP32 PCB design by ppisljar, published on GitHub. It is a 2-layer board measuring 51 × 30 mm, with 41 components from 26 distinct parts.

Its main chip is the 113991115, from the ESP32 family. Other key parts include the CS4344-CZZ, APA2068QBI-TRL and TPS61023DRLR. By type, the board carries 18 capacitors, 11 resistors, 5 connectors, 4 ICs, 1 diode and 1 inductor.

It belongs with the audio, iot & wireless and displays & leds designs in this gallery.

From the project

ESP32 Audio Player main board (KiCad, XIAO ESP32-S3)

Open-source ESP32 audio playback board designed primarily as the hardware platform for freeesp32ave`** — audio-visual entrainment (AVE) firmware.

This repository contains the full KiCad project: schematic, PCB layout, design rules, 3D models, datasheets, and helper scripts.

KiCad 3D renders. Top: TRRS headphone jack, USB-C, microSD slot, XIAO ESP32-S3 module, LED/expansion pin headers. Bottom: speaker amplifier (APA2068), bulk capacitors, level-shifting resistors.

Esp32audio, from the project README
From the project README

Main components on the Esp32audio

113991115CS4344-CZZAPA2068QBI-TRLTPS61023DRLR

Esp32audio bill of materials (BOM)

41 components, 26 distinct parts.

QtyPartRefs
1
113991115
XIAO ESP32-S3
Seeed Studio
U1
1
CS4344-CZZ
CS4344
Cirrus Logic
U2
1
APA2068QBI-TRL
APA2068
Anpec Electronics
U3
1
TPS61023DRLR
Texas Instruments
U4
1
SJ-3523-SMT-TR
PJ-320A
CUI Devices
J1
1
B2B-PH-K-S(LF)(SN)
L_SPKR
JST
J2
1
B2B-PH-K-S(LF)(SN)
R_SPKR
JST
J3
1
PRPC006SAAN-RC
GPIO_BREAKOUT
Sullins
J6
1
DM3D-SF
microSD
Hirose
J7
1
V+_EXT
GND 5V
1
SS14-E3/61T
SS14
Vishay
D1
1
NR3015T4R7M
4.7uH
Taiyo Yuden
L1
6
GRM155R71C104KA88D
0.1uF
Murata
C2, C5, C9, C10, C15, C18
1
GRM155R61C105KA12D
1uF
Murata
C3
3
GRM21BR61A106KE19L
10uF
Murata
C4, C16, C19
1
GRM188R61A335KA73D
3.3uF
Murata
C6
2
GRM21BR71A335KA73L
3.3uF
Murata
C7, C8
1
EEE-FK1A101P
100uF
Panasonic
C11
1
GRM188R71C225KE43D
2.2uF
Murata
C12
2
EEE-FK0J221P
220uF
Panasonic
C13, C14
Show 6 more
QtyPartRefs
1
GRM21BR61A226ME44L
22uF
Murata
C17
3
RC0402FR-07100KL
100k
Yageo
R1, R2, R7
2
RC0603FR-071KL
1k
Yageo
R3, R4
4
RC0402FR-0710KL
10k
Yageo
R8, R11, R12, R13
1
RC0402FR-07365KL
365k
Yageo
R9
1
RC0402FR-0749K9L
49.9k
Yageo
R10

Esp32audio design files

The KiCad project lives in the ppisljar/freeesp32_audioplayer repository on GitHub; these links point at the commit this page was built from.

Esp32audio: common questions

What microcontroller does the Esp32audio use?

The Esp32audio is built around the 113991115, from the ESP32 family.

How big is the Esp32audio PCB?

The Esp32audio measures 51 × 30 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Esp32audio?

41 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the Esp32audio design files?

From the ppisljar/freeesp32_audioplayer repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Esp32audio design in my own project?

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

Can I test firmware for the Esp32audio 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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