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external audio relay - Raspberry Pi Forums

    https://forums.raspberrypi.com/viewtopic.php?t=309509
    Using the Raspberry Pi. Beginners. external audio relay. 1 post • Page 1 of 1. jokerswild97 Posts: 1 Joined: Tue Apr 13, 2021 11:40 pm. external audio relay. Tue Apr 13, 2021 11:49 pm . Thanks all for taking a sec to check my question. New to the messageboard, but been using RPI for a few years now with basic pi-hole, octopi, etc.

Audio Control » Raspberry Pi Geek

    https://www.raspberry-pi-geek.com/Archive/2016/15/Touchscreen-audio-controller-for-presentation-sound
    To control the audio during live presentations, I wrote an audio player that incorporates background and walk-in music, sound effects, and announcements. My custom audio player is controlled from the Raspberry Pi Foundation's new 7-inch touchscreen ( Figure 2 ). Figure 2: The audio mixer and Rasp Pi touchscreen.

How to Use a Relay with a Raspberry Pi - Howchoo

    https://howchoo.com/pi/how-to-use-a-relay-with-a-raspberry-pi
    20 minutes. A relay is an electrically-operated switch. These switches can be extremely useful for a variety of Raspberry Pi projects (think turning on a light or opening your garage door. Watch the video below to learn how to drive a relay using your Raspberry Pi. Raspberry Pi Garage Door Opener: Control Your Garage Door from Your Phone Using ...

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