موديول MT8870 لفك تشفير صوت DTMF

MT8870 DTMF Voice Decoding Module

The MT8870 DTMF Decoder Module is a specialized device used to translate Dual-Tone Multi-Frequency (DTMF) signals—the tones produced when pressing keys on a telephone keypad—into digital data. This allows you to control electronics, robots, or home appliances remotely using any mobile or landline phone as a wireless controller.

Key Features

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  Full DTMF Decoding: Accurately decodes all 16 standard DTMF tones, including numbers (0-9), letters (A-D), and symbols (*, #).

  
  


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  Audio-Ready Interface: Features an onboard 3.5mm audio jack, allowing you to plug it directly into a smartphone's headphone jack or any audio source.

  
  


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  Real-time Digital Output: Converts tones into a 4-bit binary code (Q1–Q4) that microcontrollers like Arduino or ESP32 can easily read.

  
  


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  Detection Indicator (StQ): Includes a "Status" pin that goes high whenever a valid tone is detected, serving as an interrupt for your code.

  
  


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  Onboard LEDs: Integrated LEDs provide immediate visual feedback for the digital output state, simplifying troubleshooting.

  
  


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  Wide Operating Range: Built to withstand temperatures from -40°C to +85°C, making it suitable for industrial environments.

  
  

Technical Specifications

Dimensions

Pinout Description

Connection

Applications

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  Phone-Controlled Robotics: Control a robot's movement from anywhere in the world by calling a phone attached to the robot.

  
  


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  Smart Home Automation: Toggle lights, fans, or security locks by entering a code on your phone’s keypad.

  
  


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  Remote Security Systems: Use your phone as a remote "keypad" to arm or disarm alarm systems.

  
  


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  Interactive Voice Response (IVR): Build simple systems that react to user keypad inputs for data entry or menu navigation.

  
  

Package Contents

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  1x MT8870 DTMF Voice Decoding Module