MT8870 DTMF Voice Decoding Module
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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
- Onboard MT8870 DTMF decoder IC
- 12-key + 4 control tone decoding (A,B,C,D)
- 5V operation with low power consumption
- Direct plug-in for Arduino UNO/MEGA2560/DUE
- Built-in 3.5mm audio input and status LEDs
- Adjustable guard time and inhibit mode
- Complete DTMF receiver with no external components needed
- Onboard LEDs for real-time output status
- Central office-quality signal detection
- Plug-and-play integration with popular dev boards
- Ideal for robotics, automation, and telecom projects
| Main Chip | MT8870DS |
|---|---|
| Working voltage | 5V |
| Power Consumption | 500mW (MAX) |
| Type | MT 8870 DTMF Tone Decoding Module |
| Operating Temperature | -40-+85 °C |
| Board Colour | Blue |
| Dimension (LxWxH)mm | 27 x 25 x 10 |
| Weight | 5g |
Is the MT8870 module compatible with Arduino?
Yes, it is fully compatible with Arduino UNO, MEGA2560, and DUE boards.
What voltage does the MT8870 DTMF module require?
It operates at 5V DC and includes low power consumption design.
Can it decode all DTMF keys including A, B, C, D?
Yes, it decodes 12 standard keys (0-9, *, #) plus 4 control tones (A, B, C, D).
Do I need external components to use this module?
No, it has an internal amplifier and requires no external wiring.
What are common applications of this DTMF module?
Used in home automation, robotics, call routing, and industrial control systems.
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About MT8870 DTMF Voice Decoding Module by Iotcart
Shop MT8870 DTMF Voice Decoding Module compatible with Arduino/Raspberry Pi. Low power, 5V, 12-key decode. Best price in India.
Categorised under: Arduino