2 layers27.9 × 16.5 mm
2 layers90 × 71.5 mm
Audiospektrikytkenta
leeviekd/ESP32-audio-visualizerAudio spectrum analyzer on a pcb with components and ESP32
- Size
- 90 × 71.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 43
- Pads
- 106
- Tracks, vias
- 181, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 14 Jan 2025
- Updated
- 14 Jan 2025
Overview
Audiospektrikytkenta is an open-source printed circuit board by leeviekd, from the leeviekd/ESP32-audio-visualizer repository on GitHub. It is a 2-layer board of 90 × 71.5 mm with 18 parts on 43 nets, routed with 181 tracks and 0 vias.
Its parts include 5 capacitors, 4 resistors, 3 ICs and 2 connectors. It belongs with the audio and music boards and the ESP32 boards of this library.
README
README.mdESP32 Audio Visualizer
Project Description
The ESP32 Audio Visualizer is a project that leverages the powerful ESP32 microcontroller to create an audio visualizer. This project involves designing the hardware and software to capture audio signals with an electret microphone, process them, and display the audio spectrum visually using an OLED display.
KiCad Component Models
This project uses several KiCad component models to design and layout the PCB. Below are the details of the main components used:
1. Electret Microphone Amplifier - MAX4466 with Adjustable Gain
- Symbol File: 1063.kicad_sym
- Footprint File: MODULE_1063.kicad_mod
- Manufacturer: Adafruit Industries
- Description: Electret Microphone Amplifier with adjustable gain.
2. 0.96” 128 X 64 Monochrome Graphic OLED Display Module - I2C
- Symbol File: DM-OLED096-636.kicad_sym
- Footprint File: MODULE_DM-OLED096-636.kicad_mod
- Manufacturer: Displaymodule
- Description: 0.96” 128 X 64 Monochrome Graphic OLED Display Module with I2C interface.
Video demo
https://github.com/user-attachments/assets/7c18a615-56e0-4a1f-8cac-e827901379dd
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | C | Capacitor_THT:C_Rect_L7.0mm_W4.5mm_P5.00mm | C1, C2, C3, C4, C6 |
| 4 | R | OptoDevice:R_LDR_4.9x4.2mm_P2.54mm_Vertical | R1, R2, R3, R4 |
| 4 | TestPoint | TestPoint:TestPoint_Pad_2.0x2.0mm | TP1, TP2, TP3, TP4 |
| 1 | 1063 | 1063:MODULE_1063 | U2 |
| 1 | Conn_01x16_Pin | Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Vertical | J2 |
| 1 | Conn_01x17_Pin | Connector_PinHeader_2.54mm:PinHeader_1x17_P2.54mm_Vertical | J1 |
| 1 | DM-OLED096-636 | OLED096:MODULE_DM-OLED096-636 | U3 |
| 1 | ESP32-DEVKITC-32D | ESP32-DEVKITC-32D:MODULE_ESP32-DEVKITC-32D | U1 |
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Questions
How big is the Audiospektrikytkenta PCB?
It measures 90 × 71.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Audiospektrikytkenta use?
18 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Audiospektrikytkenta KiCad files?
From the leeviekd/ESP32-audio-visualizer repository on GitHub, at the commit this page was made from: the board is KiCad_wiring/audiospektrikytkenta.kicad_pcb and its schematic KiCad_wiring/audiospektrikytkenta.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Audiospektrikytkenta design in my own project?
Its repository states no licence, so its author keeps all rights: ask leeviekd before reusing the design.