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ISD1820 Voice Recording Module With On Board Mic and Speaker

  • ₹ 149.00
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Description: 

ISD1820 Voice Recording module can be used for multi-segment recording. The mic is present on board and there are two pins (SP+ and SP-) present on board to connect speaker. Other than Speaker output pins there are 6 more pins on the
ISD1820 module i.e., Vcc, GND, FT, REC, PE and PL. Vcc and GND is used to power up the module by 3V-5V DC. FT pin is used to activate Feedthrough mode. In Feedthrough mode the input voice through the mic is played directly through the speaker. Whenever REC pin receives an active high signal module starts recording the voice. PE is an Edge activated pin and it remains activated until End of Message(EOM) or end of the memory space is reached. PL is a level-activated pin, when level changes from low to high it starts a play back cycle. There are three buttons on the ISD1820 voice recording module which are REC, PLAYE and PLAYL. REC button is red in colour unlike PLAYE and PLAYL which are black in colour. REC button as the name suggest is
used to initiate the voice recording. The voice is recorded for the duration of time the REC button is kept hold (the maximum length of audio which can be recorded by the module is 20 seconds). When the REC button is released the module stops recording
voice. By pressing PLAYE button whole speech can be played back. PLAYE button works on trigger mode. Whereas PLAYL button works on jog mode. Hence, the voice recording is played back for the duration of time PLAYL button is kept hold. As soon
as the PLAYL button is released playback stops. In ISD1820 module flash memory is embedded on board used to save voice recordings. As this is a non-volatile memory, it can keep data stored even without power input. There is an internal audio amplifier in the module which is used to drive speaker of up to 8 ohm 0.5W load.

This module feature two operating modes:

  1. Standalone Mode and
  2. Microcontroller Mode.

Specifications: 

Main Chip ISD1820
Dimension (mm) 43x43x11 (LxWxH)
Working Voltage 3-5 volts
Loudspeaker 8 ohm 0.5W
Voice Recording Time 10 seconds

 


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