MT8870 DTMF Voice Telephone Decoder Module

LKR 350

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The DTMF Shield for Arduino converts DTMF or Touch Tone signals into a format that microcontrollers (uC) or Arduino boards can understand. DTMF tones are analog signals that Arduino and most uC cannot read directly. This module converts those signals into a digital format that uC can easily read. 

  • Current 3mA
  • Length x Width 26.5mm x 24.5mm
  • Operating Voltage 5V
  • Special Features Onboard five LED indicators for easy viewing of output status
  • Support 3.5mm stereo audio jack

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