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Amazon.com: WM8960 Audio HAT Module for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/Zero W/Pi Zero WH,WM8960 Hi-Fi Sound Card HAT Stereo CODEC, Play/Record : Electronics
Chapter 3. Raspberry Pi and Arduino Prototype: Measuring and Displaying Noise Levels to Enhance User Experience in an Academic Library | Kung | Library Technology Reports
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Figure 7 from A raspberry Pi controlled cloud based air and sound pollution monitoring system with temperature and humidity sensing | Semantic Scholar
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