Make a talking MSP430 microcontroller
- by Ian Lesnet on Apr 25th 2008 3:30PM
- Filed under audio and video, computers and internet, geek it yourself, electronics, GIY: Geek-it-yourself
This article continues a series about building a DIY digital audio recorder. Inspired by this microcontroller audio project [via], I set out to build a simple digital recording device. I chose Texas Instrument's MSP430 microcontroller for this project because it's fast (16 MHz), it's cheap ($1), and it's very low power. Read the first part, and the second part.This week we'll progress towards a digital audio recorder by playing audio files from a SD memory card. First, we'll convert an audio file to a raw format and image it directly to a SD card. Then, we'll interface the SD card with the MSP430 and play an audio file. See it in the video:
Next time we'll extend this basic circuit to include a microphone and audio recording capabilities.
Read on to learn more about generating audio with a microcontroller.
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