MT8870 DTMF Voice Decoder
R93,95
The MT8870 DTMF Module is an audio-frequency decoder that converts telephone-style keypad tones (Dual-Tone Multi-Frequency) into 4-bit digital outputs. It instantly identifies all 16 standard touch tones (0-9, *, #, A-D) via an onboard 3.5mm audio jack or microphone input.
Description
The MT8870 DTMF Module is an audio-frequency decoder that converts telephone-style keypad tones (Dual-Tone Multi-Frequency) into 4-bit digital outputs. It instantly identifies all 16 standard touch tones (0-9, *, #, A-D) via an onboard 3.5mm audio jack or microphone input. [1, 2, 3, 4, 5, 6, 7, 8]
Top Features:
- Instant Decoding: Onboard MT8870 IC translates analog tones into direct digital outputs.
- Visual Indicators: Features 5 onboard LEDs to display output status and signal detection.
- Wide Compatibility: Easily connects to microcontrollers like Arduino or Raspberry Pi for remote control projects. [1, 2, 3, 4, 5]
It is widely used in telephony systems, smart home automation, and mobile-controlled robotics to trigger commands over standard phone calls. [1, 2]
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