'voice output in pic microcontroller
i am developing a basic calculator using pic16f877a microcontroller. I have already interfaced the keypad and lcd for displaying the output on proteus. I can successfully add 2 numbers from the keypad and display the result on the lcd. What i want now is in addition to displaying the output on lcd, i want to add voice i.e let the calculator read out the result so that blind people can hear it too. What are the major components/steps required. If someone could just guide me in the right direction.
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