Turn Your Raspberry Pi Into a Wireless FM Microphone
Wireless microphones allow you to roam freely, amplifying your voice, but they can be incredibly expensive. With a Raspberry Pi, a few cheap components, and a radio, you can build one much cheaper.
This build bytaifur at Instructables transmits what you say to an impromptu lavalier microphone over FM radio. Once you’ve got your Pi set up, you can amplify your voice with any universal radio or radio. This can be useful for lectures or presentations where you may be hard to hear and there is no professional speakerphone. You can also use it in a van or other large vehicle to communicate through the car’s speakers. You can find a complete list of components, required code and step-by-step instructions at the link below.
Raspberry Pi Wireless Microphone | Instructables