Voice Recording Module 8-20 seconds – ISD1820 – Microphone and Speaker

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Description

This sound/voice recorder module is based on the ISD1820 integrated circuit, which can record multiple sounds or voice messages through the on-board microphone. The audio is stored in nonvolatile memory.

The sample rate and recording length can be set up by changing a resistor. The resistor R4 on board has 100kOhm, setting the recording length to 10s with a sample rate of 6.4kHz. By replacing this resistor, sample rates from 3.2 to 8kHz can be selected, resulting in a recording time of 8 to 20 seconds (see the datasheet for details).

The on-board push buttons can control the ISD1820 module’s function, or through its control pins, connected to a microcontroller like Arduino, STM32 or PIC, for example.

Functions:

  • Automatic power-down mode
  • On-chip 8 speaker driver
  • 2.7-4.5V power supply
  • Manual or remote control (GPIO)
  • Adjustable sample rate
  • Recording of max. 20 seconds of audio
  • Dimensions: 39 x 42 mm
  • on-board microphone included
  • external speaker included

ISD1820 Voice Recording Module Data Sheet

Additional information

EAN

4260474032242

Manufacturer

UNIVERSAL-SOLDER

Brand

CANADUINO

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