Description:

This DTMF (Dual-Tone Multi-Frequency) decoding module is your gateway to adding sophisticated, touch-tone control to your projects. Imagine the possibilities: by interpreting incoming DTMF tones, this module generates a precise coded output, ready to interface seamlessly with a wide range of microcontrollers.

Commonly found in everyday touch-tone devices like telephones, DTMF relies on a unique system. Each tone is a combination of two distinct sine waves, producing a signal that can be transmitted wirelessly or heard audibly. When this module receives such a signal, it expertly decodes it, translating the tone into a binary output that your other devices can understand and act upon.

Specifications:

• Operating Voltage: 5VDC
• Chip: MT8870DS
• Power Consumption: 500mW (MAX)
• Operating Temperature: -40-+85 C
• Board Color: Blue

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.

Package Included:

1 x MT8870 Voice Decoding Module