40 Second Message Recorder Board (ISD1740) 40 Second Message Recorder Board (ISD1740) Quasar Electronics Feature packed non-volatile 40 second multi-message sound recorder module using a high quality ISD1740 by Winbond. Standalone operation six onboard buttons or onboard SPI interface. Record using built-in microphone or external line-in... Electronics > Circuit Components > Printed Circuit Boards > Development Boards quasar_diy_k188 3188KT 25.46 Quasar Electronics Limited https://www.quasarelectronics.co.uk/Item/3188-40-second-message-recorder-isd1740
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40 Second Message Recorder Board (ISD1740)

40 Second Message Recorder Board (ISD1740)
40 Second Message Recorder Board (ISD1740)
40 Second Message Recorder Board (ISD1740)
40 Second Message Recorder Board (ISD1740)
AS3188KT - 40 Second Message Recorder Board (ISD1740)
Ability Level 3: IntermediateProduct Formats Available: Pre-Assembled Module (AS) or
Self-Assembly Electronic Kit ( Soldering Required)

Feature packed non-volatile 40 second multi-message sound recorder module using a high quality ISD1740 byWinbond. Standalone operation using just six onboard buttons or the onboard SPI interface. Record using built-in microphone or external line in (best results). Speaker and analogue AUX outputs. Wide 8-24 V dc operating voltage. Adjustable sampling frequency.

These chips are designed for operation in either standalone or SPI (microcontroller) mode. This kit provides interfaces for both.

Onboard controls for RECORD, PLAY, VOLUME, ERASE, FORWARD, RESET and LINE/MIC input selection. Selecting a different message will override the currently playing message. Solder pads allow easy connection of your own external control buttons for RECORD, PLAY, VOLUME, ERASE & FORWARD if preferred.

If you press and hold the PLAY button it will play all messages sequentially. If you only record one message then it will be played over and over.

The sampling frequency (total record time) can be adjusted from 4 to 12 kHz (80 - 24 seconds) by changing one onboard resistor value, giving greater flexibility in duration versus recording quality.

Recordings are stored in on-chip Flash memory, providing non-volatile storage when power is removed. The audio data is stored directly without digital compression, which provides better quality voice and music reproduction. For practical purposes an unlimited quantity of messages can be stored (see ISD1700 series datasheet timing diagrams for specific details).

Specifications
Operating Voltage8 to 24Vdc
Sampling Frequency8 kHz default
Message Length40 seconds @ 8 kHz (see text)
Standalone ModeYes
SPI Mode interfaceYes
Input SourcesOnboard electret microphone or
Analogue Line In
Outputs1. Direct drive to an 8 Ohm speaker (~ 500mW)
2. Analogue Aux Output
Visual IndicatorOnboard LED:
Stays ON during recording
BLINKS during playback, etc.
Board Dimensions52 x 70mm
Board ConnectionsPower socket, 3.5mm mono audio jacks, screw terminal blocks and solder pads
Product FormatsSELF-ASSEMBLY Electronic Kit (KT) or
PRE-ASSEMBLED Electronic Module (AS) Product Formats Info
DocumentationUser Manual
ISD1700 Series Datasheet
Your Total:

AS3188KT - 40 Second Message Recorder Board (ISD1740) Selection

SELF-ASSEMBLY 40 Second Message Recorder Electronic KIT
Quasar 3188KT - SELF-ASSEMBLY 40 Second Message Recorder Electronic KIT
£24.96 £21.22 +VAT, £25.46 Inc | In Stock
PRE-ASSEMBLED 40 Second Message Recorder Module
Quasar AS3188 - PRE-ASSEMBLED 40 Second Message Recorder Module
£31.63 £26.89 +VAT, £32.27 Inc | In Stock

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