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proj_01.php   4088 Bytes    11-12-2014 12:37:35


EPROM WAVE PLAYER




Voice Output Device



As in our lab every device is equipped with a beeper, nobody really knows, what went wrong if you hear a beeper somewhere. So I decided to give the devices a 'voice', telling our students what is wrong.

This device uses simple parts which are available almost everywhere. The PCB measures 100x160 mm. The devices is powered by 9 ... 15 V.

You need an Eprom-writer to successfully build this project.







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t1 = 3844 d

t2 = 370 ms

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