Voice Recorder Board

Voice Recorder Board
Product Code: SD1820-VB

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ID your repeater, build your own voice keyer or just annoy your family and friends. This is the voice recorder board used with the ID-O-Matic IV repeater controller. This board will record and play back a 10-second voice messsage. Simple to use; hold down the REC button to record the message, and press the PLAY button to play the message back. The on-board audio amplifier is enough to drive a small 8 Ohm speaker, and there is a microphone on board as well.

These boards have no header pins or speaker connectors, since they are not needed with the ID-O-Matic. Solder pads are provided for off-board connections.


  • Main chip: ISD1820
  • Operating voltage:3 - 5VDC
  • Recording time: 10 seconds
  • Can be used as a loudspeaker module
  • Loop or single-pass playback
  • Can be controlled with single-chip controller
  • Can directly drive 8 Ω 0.5W speakers
  • PCB Dimension: 38mm * 42.5mm
General Information
This product is fully assembled. No connectors are installed, making it easy to connect to your ID-O-Matic III or IV or your own project via wires.
Edge-triggered playback, level-triggered playback, record
Audio signal, single-ended or speaker drive available on board
Power requirements
DC 3-12 V

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