Stemedu DC 0-25V Voltage Detection Sensor Voltage Terminal Measurement Module up to 25V, Test Electronic Bricks for Robot for Arduino Raspberry Pi (Pack of 5pcs): Amazon.com: Industrial & Scientific
Raspberry Pi SPL meter using Python - YouTube
DIY IoT Decibel Meter | Sound Level Meter - YouTube
Capacitive Soil Moisture Sensor with Raspberry Pi Pico
sound sensor with raspberry pi | Python Tutorial | Digital Value
sound sensor with raspberry pi | Python Tutorial | Digital Value
Collecting Sound Level Values with a Raspberry Pi
Voice Activated Light using Sound Sensor & Raspberry Pi Pico