Product Description: This voice record/playback device is based on ISD1820 chip, which can record/playback multiple-message. It can offer true single-chip voice recording, non-volatile storage, and playback capability for 8 to 20 seconds. For the sampling rate of 3.2KHz it can record for the total duration of 20 seconds. Feature: Push-button interface, playback can be edge or level activated Automatic power-down mode On-chip 8Ω speaker driver Can be controlled both manually or by the microcontroller Sample rate and duration changeable by replacing a single resistor Record up to 20 seconds of audio On board record/play button On board microphone Repeat/One Time mode select External connector for speaker The chip has the major pin leads, through which you can control the operation from the microcontroller High-quality, natural voice restored, used as a loudspeaker module 3-5V operating voltage Dimensions: 37 x 54 mm Weight approx 16g If you want change the record duration, an external resistor is necessary to select the record duration and sampling frequency, which can range from 8 – 20 seconds (4-12 kHz sampling frequency). This voice record module provides default connect to a 100k resistor through P2 by short cap. So the default record duration is 10s.
