Audio signal generator
About the Audio signal generator PCB
Audio signal generator is an open source ESP32 PCB design by igor-gia, published on GitHub under the MIT license. It is a 2-layer board measuring 90.5 × 68 mm, with 26 components from 23 distinct parts.
Its main chip is the ESP32-S3-DEVKITC-1-N16R8V, from the ESP32 family. Other key parts include the PCM5102A-module and DM-OLED096-636. By type, the board carries 10 resistors, 6 switches, 4 connectors, 3 ICs and 3 capacitors.
It belongs with the audio and test & measurement designs in this gallery.
From the project
Dual-channel low-frequency DDS signal generator and Hi-Res audio player based on ESP32-S3 and PCM5102A (I2S).
Main components on the Audio signal generator
Audio signal generator bill of materials (BOM)
26 components, 23 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-S3-DEVKITC-1-N16R8V | ESP32-S3-DEVKITC-1-N16R8V | U1 |
| 1 | PCM5102A-module | PCM5102A-module | U3 |
| 1 | DM-OLED096-636 | MODULE_DM-OLED096-636 | U4 |
| 1 | Audio Out | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J2 |
| 1 | Audio Out (-20dB) | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J3 |
| 1 | USB_C | USB-C-DEV | J4 |
| 1 | Micro_SD_Card_socket | Micro_SD_Card_socket | J5 |
| 1 | both | SW_SPST_12x12 | SW1 |
| 1 | left | SW_SPST_12x12 | SW2 |
| 1 | right | SW_SPST_12x12 | SW3 |
| 1 | mode | SW_SPST_12x12 | SW4 |
| 1 | wave | SW_SPST_12x12 | SW5 |
| 1 | RotaryEncoder_Switch | Encoder_EC11 | SW7 |
| 1 | 220 мкФ | CP_Radial_D6.3mm_P2.50mm | C1 |
| 1 | 0.1 мкФ | C_Disc_D5.0mm_W2.5mm_P2.50mm | C2 |
| 1 | 1 мкФ | C_Disc_D5.0mm_W2.5mm_P2.50mm | C3 |
| 1 | 4.7 кОм | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 2 | 6.8 кОм | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R3 |
| 2 | 1 кОм | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4, R5 |
| 1 | 5.6 кОм | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 10 кОм | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7 |
| 2 | 5.1 кОм | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R8, R9 |
| 1 | 1.5 кОм | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10 |
Audio signal generator design files
The KiCad project lives in the igor-gia/audio-signal-generator repository on GitHub; these links point at the commit this page was built from.
Audio signal generator: common questions
What microcontroller does the Audio signal generator use?
The Audio signal generator is built around the ESP32-S3-DEVKITC-1-N16R8V, from the ESP32 family.
How big is the Audio signal generator PCB?
The Audio signal generator measures 90.5 × 68 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Audio signal generator?
26 components, from 23 distinct parts. The full bill of materials is listed on this page.
Where can I download the Audio signal generator design files?
From the igor-gia/audio-signal-generator repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Audio signal generator design in my own project?
Yes, under the terms of its MIT license, which igor-gia chose for the repository.
Can I test firmware for the Audio signal generator 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.
Similar boards
ESP32Open Book Abridged Edition
joeycastillo
85 × 115 mm65 parts2LCC-BY-SA-4.08.1k
ESP32Badge
atopile
56.3 × 39 mm239 parts4LMIT4.0k
ESP32Esp32 minimal
36.2 × 26.8 mm20 parts2LMIT4.0k
ESP32Racer
StuckAtPrototype
36 × 50.2 mm70 parts4LApache-2.03.8k
ESP32Controller
29 × 74 mm58 parts4LApache-2.03.8k
ESP32Bitaxe
skot
56.5 × 99.8 mm86 parts4LCERN-OHL-S-2.01.4k