1, The product features
And supports playback of WAV format files 4Bit ADCPM;
Supports automatic speech recognition folders and file playback;
You can play background music and commercials language;
Control methods are key control, second control and UART232 serial control;
WTV master chip has WTV020-16SOP and WTV020-20SOP two packages, both of which are compatible;
You can play any segment of speech;
Operating voltage: DC2.6 ~ 3.6V;
Classified by folder store content, easy to operate.
2 Product Overview
WTV020 plug-in SD card Voice module, the main chip selection WTV020-16S and WTV020-20S package chips. Voice updates directly through an SD card reader on a PC replacement. Control is also an SD card stored in TXT file changes. The module supports the FAT file system. Support and ADPCM WAV file playback. Supports two-wire serial control mode, key methods and UART232 serial manner. Automatic speech recognition and speech sample rate format.