视觉声音警报检测器 / 声音分析仪：Wi-Fi套件 32 V3 + Max9814电感 + 3个AAA电池座
Visual Sound Alert Detector / Sound Analyzer : Wifi Kit 32 V3 + Max9814 + 3xAAA holder
使用说明
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关于费用
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Summary
Gadget: Sound Alert System
Description: This gadget utilizes Arduino and various libraries to create a sound alert system. The main functionality of the code is to detect specific frequencies with certain intensities and display corresponding alerts on an OLED display.
The system continuously captures sound through the Max9814 microphone, performs fast Fourier transform (FFT) analysis on the sound data, and checks for specific frequencies and intensity thresholds. When a detection occurs, an alert is triggered, and the corresponding message is displayed on the OLED screen.
Github project: https://github.com/nadamas2000/soundAlert-soundAnalyzer-ESP32
Hardware:
- Microcontroller Board: Heltec Wifi Kit 32 V3 (ESP32)
- Microphone: Max9814
- Battery Holder: 3xAA Battery Holder / 1x18650 Battery Holder
References:
- Heltec Wifi Kit 32 V3 board: https://heltec.org/project/wifi-kit-32-v3/
- Microphone Max9814: https://www.analog.com/media/en/technical-documentation/data-sheets/max9814.pdf
Working wake up and frequency detection: https://www.youtube.com/watch?v=QawYXSqPsZ8
Working in case: https://www.youtube.com/watch?v=QHgimJAhCMs
Different sound analyzing modes (old release): https://www.youtube.com/watch?v=icu3Co2jCHw
Donate what you want in https://www.paypal.me/Nadamas
Tags
License
Visual Sound Alert Detector / Sound Analyzer : Wifi Kit 32 V3 (ESP32) + Max9814 + (3xAA or 18650 holder)
by Nadamas is licensed under the Creative Commons - Attribution license.
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