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您现在的位置是:虫虫源码 > 其他 > 一个小的模块将自动播放音频文件。

一个小的模块将自动播放音频文件。

资 源 简 介

This project includes instructions to build a small module which will play back audio files autonomically. The field of application varies from music-greeting-cards to door-bells. Main parts of the circuit are the Atmel AVR ATmega48 microcontroller, an Atmel AT45DB161 dataflash for storage and a Philips TDA7052 as amplifier. To update the device simply convert your preferred audio data into an uncompressed raw audio file (8bit unsigned, mono samples) at a fixed frequency and upload it to the device via EIA-232 (115.2kbaud, 8N1) Z-Modem protocol (e.g. use TeraTerm). Once the device powers up it starts playing the data from it"s flash memory as an endless loop.

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