Isd1820 Circuit Diagram. The isd1820 voice module board may be a good answer for an additional single sound effect to a project. Recordings are stored into on chip non volatile memory providing zero power message storage.
Via three digital i o communication pins. These boards can record a single audio sample of up to 10 seconds using a built in microphone and will play back the sample on demand with good fidelity. If they are powered separately make sure that the amp circuit and the isd1820 share a common ground.
The vcc and gnd pins of the isd1820 voice recorder and playback module are connected with the arduino s 5 volts and gnd.
The circuit diagram is very simple. I read quickly and thought you were using an lm386 module. Now let s write a simple arduino program to play a recorded voice message again and again. While the p e pin is connected with the arduino s pin number 5.
