Voice Decoder DTMF Module MT8870
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Category: Other Accessories
SKU: 1977
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(13 customer reviews)
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1) Onboard voice input interface.
2) Low power consumption.
3) Internal gain setting amplifier.
4) Onboard LED, it is very convenient to check the output state.
5) Adjustable guard time.
6) Onboard 3.5mm input interface.
7) 5 Channel interface.
Description:
This component is ideally suited to adding dual tone multi frequency (DTMF) decoding to your project. This detection module interprets the incoming tone and produces a coded output that can be connected to all manner of microcontrollers.
As an idea you can connect up a mobile phone via 3.5mm to 3.5mm cable to the module. Dialling into the phone from a second mobile and then using the keypad will produce the tones on the original phone. The tones in the call can then be interpreted by the module, allowing you to control all manner of projects.
Specifications:
Operating voltage: 3V – 5V DC
Dimensions: 26.5 x 24.5mm
on board MT8870 complex frequency decoder chip
on board voice input interface
on board 5 led indicator
Main pin lead out already
PCB size:26.5(mm)x24.5(mm)
Features:
MT8870 module decodes DTMF signals from an audio source and it is suitable for remote monitoring applications, telephone answering machines and more
A low power device DTMF decoder chip. It is a complete DTMF receiver integrating both the band-split filter and digital decoding functions
On-board MT8870 frequency decoder chip
On-board audio input interface
On-board LED lights for output status indicator
Package Include:
1 X Voice Decoder DTMF Module MT8870.
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Voice Decoder DTMF Module MT8870
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