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DTMF Audio/Speech Decoding Telephone Module

(5.0) 779 Reviews 928 Orders 297 Wish listed
₹141.00 ₹120.00 (Excl. Tax)
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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. DTMF is commonly found in touch-tone devices such as a phone. The tone is a combination of two separate sine waves that produce a unique signal that can be transmitted or heard. When the module receives the signal it can decode it and produce a binary output that can be used in other devices. The module shows the state of the signal through onboard LEDs. Dialing 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. The pins are suited to standard sockets with a pin pitch of 2.54mm. The MT8870 Tone Decoder is a kind of commonly used multi-frequency decode IC product developed by the MITEL company. It is a complete DTMF receiver.

Features:
  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.  Central office quality
  7. Onboard 3.5mm input interface
  8. 5 Channel interface
  9. On-board MT8870 frequency decoder chip
  10. Power-down mode
  11. Inhibit mode
  12. Onboard audio input interface
  13. Onboard LED lights for output state indication Complete DTMF Receiver.
  14. Does not require external circuits or wiring, it can be inserted directly into the UNO/MEGA2560/DUE board.
  15. 12-Digital outputs decode mobile and fixed telephone keys (0-9, * #). Also, another 4 Digital outputs (ABCD) can use “DTMF Dial” for Software control.
Package Includes:
1 x DTMF Audio/Speech Decoding Telephone Module




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DTMF Audio/Speech Decoding Telephone Module
₹120.00₹141.00 ₹0.00
₹120.00₹141.00