MAX4466 Microphone Kit

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A low-cost MAX4466 microphone with a built-in amplifier, wired straight to the Pico's ADC to show sound as an Audacity-style waveform.

Source book: Learning MicroPython
Kit page: https://dmccreary.github.io/learning-micropython/kits/microphone-max4466/
Printable one-pager: microphone-max4466-one-pager.html

Features

• Lab: Getting Started

Benefits

• Free, open lessons: the Learning MicroPython textbook has the kit page, wiring, and MicroPython code.
• Real-world data: students read sensors and turn measurements into decisions.
• Budget: about $10 (microphone module about \(1–\)2.70 on eBay; Pico $4, breadboard $2, wires $1, USB cable $2).

Parts

• Raspberry Pi Pico ($4) — Microcontroller
• MAX4466 Microphone — Sensor
• 830-Point Breadboard ($1.10) — Breadboard
• Micro-USB Data Cable ($2.50) — Power and programming cable