HardLabs

The-SaxplayerTM

tenorangesax·The-SaxplayerTM·PCB/Saxplayer.kicad_pcb

The-SaxplayerTM PCB layout, top view — open source ESP32 board by tenorangesax

About the The-SaxplayerTM PCB

The-SaxplayerTM is an open source ESP32 PCB design by tenorangesax, published on GitHub. It is a 2-layer board measuring 116.8 × 53.9 mm, with 19 components from 11 distinct parts.

Its main chip is the ESP32-DevKitC, from the ESP32 family. By type, the board carries 6 resistors, 5 capacitors, 4 switches, 2 connectors, 1 IC and 1 LED.

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

From the project

This is my own sample demo project for my tutorial to soon be posted on stasis! It is a simple mp3 player/streamer using a seeed, a headphone jack, an oled, and 3 buttons/keyswitches.

WAV music player firmware for the Saxplayer board (ESP32-WROOM, SH1106/SSD1306 OLED, microSD, 3 MX switches, EC11 encoder, 3.5mm jack driven by the ESP32's internal DACs).

1. Install esptool and grab the latest ESP32 MicroPython firmware from micropython.org/download/ESP32_GENERIC/ 2. Flash it (adjust the port):

3. Copy this Firmware folder's .py files to the board with mpremote:

The-SaxplayerTM, from the project README
From the project README

Main components on the The-SaxplayerTM

ESP32-DevKitC

The-SaxplayerTM bill of materials (BOM)

19 components, 11 distinct parts.

QtyPartRefs
1
ESP32-DevKitC
U1
1
Micro_SD_Card
J1
1
AudioJack3
J2
3
SW_Push
SW1, SW2, SW3
1
RotaryEncoder_Switch
SW4
1
OLED_128X64_1.3_I2C
DS1
2
10µF
C1, C2
1
10µF
C3
2
0.1uF
C4, C5
4
10kΩ
R1, R2, R5, R6
2
4.7kΩ
R3, R4

The-SaxplayerTM design files

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

The-SaxplayerTM: common questions

What microcontroller does the The-SaxplayerTM use?

The The-SaxplayerTM is built around the ESP32-DevKitC, from the ESP32 family.

How big is the The-SaxplayerTM PCB?

The The-SaxplayerTM measures 116.8 × 53.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the The-SaxplayerTM?

19 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the The-SaxplayerTM design files?

From the tenorangesax/The-SaxplayerTM repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the The-SaxplayerTM design in my own project?

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

Can I test firmware for the The-SaxplayerTM 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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