10pcs MT8870 DTMF Receiver Telephone Dial Tone Decoder Phone Voice Control Module

Product Name: 10pcs MT8870 DTMF Receiver Telephone Dial Tone Decoder Phone Voice Control Module Package:(Does not include UNO/MEGA2560):10 PCS MT8870 DTMF decoder module;10 PCS Male to Male audio wire (3.5mm jack ); 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 : 0-+85 °C IO Drive : Current Maximum 9mA. PCB Size : 25.4×25.4MM This decoding module is for mobile and fixed telephone voice dialing decoding functionDesigned specifically for ARDUIUO 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. uno/mega2560 Code fragment:After purchase, please contact me for complete code!//*******************************************//#include int STD = A0;int Q1 = A1;int Q2 = A2;int Q3 = A3;int Q4 = A4;….//Check once every 5 msvoid dtmf_decode(void){….}void setup(){…..}void loop(){//Complete the decodingif(Decod_finished){Decod_finished = 0;Serial.print(” Activate : ” );switch(Q_dat){case 1 : Serial.print(“1 n” ); break;case 2 : Serial.print(“2 n” ); break;case 3 : Serial.print(“3 n” ); break;case 4 : Serial.print(“4 n” ); break;case 5 : Serial.print(“5 n” ); break;case 6 : Serial.print(“6 n” ); break;case 7 : Serial.print(“7 n” ); break;case 8 : Serial.print(“8 n” ); break;case 9 : Serial.print(“9 n” ); break;case 10 : Serial.print(“0 n” ); break;case 11 : Serial.print(“* n” ); break;case 12 : Serial.print(“# n” ); break;case 13 : Serial.print(“A n” ); break;case 14 : Serial.print(“B n” ); break;case 15 : Serial.print(“C n” ); break;default : Serial.print(“D n” ); break;}….. //****************************************************************************// Typical application for Mobile phones((Does not include UNO/MEGA2560): Typical application for DTMF Dial Software: