Below item is powered by Canton-electronics Ltd .Product Name:Arduino MT8870 DTMF Receiver module audio Decoder Voice dialing controler RelayModule No.:CE005If you need more, purchase from here.We also have:\"16Ch MT8870 DTMF Audio Decoder\",click here\"12Ch MT8870 DTMF Audio Decoder\",click here Package ：(Does not include Arduino UNO/MEGA2560/Mobile phone):1 PCS MT8870 DTMF decoder module;1PCS Male to Male audio wire (3.5mm jack ) ;Description:Onboard Complex Frequency Decoder IC MT8870DSOnboard 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 : 25.4x25.4MM
This decoding module is for mobile and fixed telephone voice dialing decoding functionDesigned 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.Dial-up -> A4 A3 A2 A1Dial 1 -> 0 0 0 1dial 2 -> 0 0 1 0Dial 3 -> 0 0 1 1Dial 4 -> 0 1 0 0Dial 5 -> 0 1 0 1Dial 6 -> 0 1 1 0Dial 7 -> 0 1 1 1Dial 8 -> 1 0 0 0Dial 9 -> 1 0 0 1Dial 0 -> 1 0 1 0 Dial * -> 1 0 1 1 Dial # -> 1 1 0 0Dial A -> 1 1 0 1 Dial B -> 1 1 1 0 Dial C -> 1 1 1 1 Dial D -> 0 0 0 0 Arduino uno/mega2560 Code fragment:After purchase, please contact me for complete code!
#include <FlexiTimer2.h>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 decoding if(Decod_finished) { Decod_finished = 0; Serial.print(\" Activate : \" ); switch(Q_dat){ case 1 : Serial.print(\"1 \\" ); break; case 2 : Serial.print(\"2 \\" ); break; case 3 : Serial.print(\"3 \\" ); break; case 4 : Serial.print(\"4 \\" ); break; case 5 : Serial.print(\"5 \\" ); break; case 6 : Serial.print(\"6 \\" ); break; case 7 : Serial.print(\"7 \\" ); break; case 8 : Serial.print(\"8 \\" ); break; case 9 : Serial.print(\"9 \\" ); break; case 10 : Serial.print(\"0 \\" ); break; case 11 : Serial.print(\"* \\" ); break; case 12 : Serial.print(\"# \\" ); break; case 13 : Serial.print(\"A \\" ); break; case 14 : Serial.print(\"B \\" ); break; case 15 : Serial.print(\"C \\" ); break; default : Serial.print(\"D \\" ); break; } .....
Typical application for Mobile phones((Does not include Arduino UNO/MEGA2560):
Typical application for DTMF Dial Software:
★Introduction for Shenzhen Canton-electronics Trading Co.,Ltd :
We specialize in RF Wireless Radio Transmitting Units and Receiving Units, the product include transmitters with case, receivers with relay(s), transmittng modules and receiving modules, are widely applied in RC toy, remote sensing, telemetry, fireworks, industrial control, home&garden application.★Shipping:Normally shipping is by Airmail from China Post Air Mail or Hong Kong Post Air Mail ,15-60 days shipping time based on different country .Express is available, shipping time is 2-7 days all over the world, and telephone number is needed. Please contact us first for extra payment .★BenefitsThe Best Prices. By working with Canton-electronics Ltd, you can take advantage of the internet business, cut off the wholesalers cost and other costs, and import your products directly from the manufacturer at incredible prices.Prompt Delivery. Most units are in stock all the time, standard units will be completed within 1-3 days if they are sold out, it is great help for you if your project must be completed before deadline.Prompt Service. Mails will be replied within 24 hours We work 6 days a week. ★Return PolicyAll mails will be replied to within 24 hours except on weekend and holidays.Every item is manufactured under Strict Quality-Assurance Guidelines. If you are dissatisfied for any reason, please return the product to us, and we\'ll refund your money(not including shipping fees).Please ensure that return items are not used.Return items must be Posted within 7 days of receipt.Please inform us via email before posting your return package. ★PAYMENT•We accept PayPal only.•We only ship item to your PayPal verified address.•Payment must be received within 3 Days from the date of purchase.•Please leave note in PayPal when making the payment if you have any special request (colors/size).Orders will be processed instantly and dispatched in same day normally, so we do NOT accept any Email/Message note before or after you place orders.★Import tax :We will dispatch the item as SAMPLE or GIFT , label the total amount on the custom declare invoice .Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to buying.
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