MT8870 DTMF Voice Decoding Module

The DTMF Decoder Module is the ultimate solution for projects requiring dual-tone multi-frequency decoding. Ideal for modem interfaces, mobile radios, and other DTMF applications, this module offers versatile compatibility and user-friendly design.

With onboard LEDs, low power consumption, and adjustable guard time, it ensures quality performance and easy integration into UNO/MEGA2560/DUE boards. The central office quality and internal gain-setting amplifier guarantee optimal signal reception, making it a reliable choice for diverse projects. Convenient input interfaces, multi-channel outputs, and complete functionality make this module a must-have for enthusiasts and professionals alike.

Purchase now and experience seamless DTMF decoding!

Features:

Onboard voice input interface
Low power consumption
Internal gain setting amplifier
Onboard LED, it is very convenient to check the output state.
Adjustable guard time
Central office quality
Onboard 3.5mm input interface
5 Channel interface
On-board MT8870 frequency decoder chip
Power-down mode
Inhibit mode
Onboard audio input interface
Onboard LED lights for output state indicationComplete DTMF Receiver.
Does not require external circuits or wiring, it can be inserted directly into the UNO/MEGA2560/DUE board to use.
12-Digital outputs decode mobile and fixed telephone keys (0-9, * #). Also, another 4 Digital outputs (ABCD) can use “DTMF Dial” for Software control.

MT8870 DTMF Decoder Circuit Diagram:

Applications:

Modems, mobile radios, call routing.
Mobile-controlled robots.
Home Automation.
Menu navigation via phone keypad.
Industrial Automation.
Education.
Prototyping

MT8870 DTMF Decoder Module - Arduino Test with PWM Audio Synth Tones

Package Includes:

1 x MT8870 DTMF Voice Decoding Module

Specifications:

Main Chip	MT8870DS
Working voltage	5V
Power Consumption	500mW (MAX)
Type	MT 8870 DTMF Tone Decoding Module
Operating Temperature	-40-+85 Â°C
Board Colour	Blue
Dimension (LxWxH)mm	27 x 25 x 10
Weight	5g