You want to add voice, music, or sound effects to your project. What do you do? Sure, it is easy enough to plug a Raspberry Pi or some other tiny computer, but that’s not always desirable from a power, space, or cost point of view. [Mellow_Labs] shows a module that makes it simple to add sound to any project. The little board is just big enough to house a speaker and doesn’t cost much. Check it out in the video below.
The device allows you to preload tracks as MP3 files. There are two ways to control it: via a serial port, or using a single pin that can accept commands like you might expect from a MP3 player, like play and next track.
The module was loud, and the built-in speaker can be replaced. The module’s documentation doesn’t seem to include any example code, but [Mellow_Labs] has code for you on GitHub. It probably isn’t going to win any audiophile awards, but you don’t expect that from something just a little bigger than an inch across and not even a half-inch tall. Seems like a good thing for your Halloween props.
It isn’t that we haven’t seen MP3 modules before, but this one is nicely integrated and complete. We wondered if a 3D-printed cone might make this a nice custom bike horn or if it would need more amplification.
This articles is written by : Fady Askharoun Samy Askharoun
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