MT8870 DTMF Decoder Module
A tiny module based on MT8870 DTMF decoder IC for decoding DTMF signals.
- Working voltage: 5V
- Power Consumption: 500mW (MAX)
- On-board voice input interface
- On-board LED: Convenient for checking output state
- Operating Temperature: -40-+85 °C
- IO Drive: Current Maximum 10mA
- PCB Size: 25.4x25.4MM
Top Features:
- Onboard 5 x LED indicators for easy viewing output state
- Designed specifically for ARDUINO Board
- Low power consumption
- Adjustable guard time
The MT8870 DTMF Decoder Module is perfect for modem interfaces, mobile radios, and other DTMF-related applications. It can be used in projects like mobile-controlled robots, home automation, and IVR applications.
This module decodes DTMF signals from an audio source and outputs the pressed key (0-9, *, #, A, B, C, or D). It is suitable for adding DTMF decoding to various microcontroller projects.
Connect a phone to the module via a 3.5mm audio connector to interpret tones and control different projects. The module's LEDs indicate the signal state, making it easy to use.
The MT8870 Tone Decoder is a widely used multi-frequency decode IC developed by MITEL. It receives DTMF signals, divides them into high and low-frequency groups, decodes the key value, and sends it as binary output.
With onboard features like LED indicators, voice input interface, and compatibility with various MCUs, this module offers a convenient solution for DTMF decoding applications.
**Images are for illustration only; actual product may vary.**