DTMF MT8870 Audio Decoder Module for Voice Phone Control Smart Home Controller

Description

• Onboard Complex Frequency Decoder IC MT8870DS
• Onboard 5 LED indicators for easy viewing output state
• DC Power Supply Voltage：5V(4.5V-5.5V)
• Operating Temperature: -40- 85 °C
• IO Drive: Current Maximum 10mA
• PCB Size: 25.4×25.4mm
• This decoding module is for mobile and fixed telephone voice dialing decoding function
• Designed specifically for ARDUINO Board. Also use for other MCU (AVR PIC MSP430 STM32 ARM7/9/10/11 FPGA/CPLD)
• Does not require any wiring, can be inserted directly into the UNO/MEGA2560/DUE board to use
• 12 Digital outputs decode mobile and fixed telephone keys (0-9, * #). Another 4 Digital output(ABCD) can use “DTMF Dial” Software control