Voice Record Playback Module
This module is made using IC ISD1820, a single message record and playback device. It can record and play sound signals of 10 seconds duration. Recording is stored into on-chip non-volatile memory having data retention up to 100 years. It also have an internal audio amplifier which enables us to connect an 8Ω, 0.5W speaker without any additional components. This module can be easily interfaced with Raspberru Pi, Arduino Boards and Microcontrollers.