DTMF Deocoder: Power Supply: 5V DC or 7 to 12V AC/DC Input AUX Cable Output: 4 Bit DTMF Logic TTL Output and LED Indication Decodes DTMF audio signal to 4 bit binary TTL level output with LED indication. Suitable for use with Arduino, 8051, PIC and any other microcontroller applications. Applications · Remote Control systems · Caller ID applications · FM receiver based remote control · Remote control using Mobile phone Connect regulated +5V DC supply for operation of board. Outputs D1-4 and DV are active high output at 5V level. If any LED is on means that output is at high level. VT LED blinks once a new DTMF tone is received. The binary data appears at D1 to D4. signal can be from an audio source like microphone amplifier, FM radio receiver, wired phone line. Please note when connecting land line phone signal, do not connect ground wire of board to phone line directly. Use a 100nF capacitor in series to phone line wires at ground.
- DTMF Decoder
- Phone Line DTMF Decoder
- Mobile DTMF Deocder
- Mobile Home Appliacnce Controller
- MT8870 based,3.5 mm auxillary cable included.
- 5v operated.
- Decode DTMF to 4 bit data.
- 3.5 mm Jack,3.5 mm auxillary cable included.