KOOBOOK 5Pcs MT8870 DTMF Voice Decoder Decoding Module Telephone/Audio Decoder Speech Module for Arduino

BE SAFE

WE ONLY SOURCE

FROM OFFICIAL SUPPLIERS

From United States

To International

In 5-10 Days

US$19.99 Shipping Fees for any Order

GRAND SELECTION

Think of it and most probably we have it among our grand selection of products!

AMAZING PRICES

Get ready for the amazing and best Supps prices ever!

FIXED RATE DELIVERY

Get your order anywhere on this planet within 5-10 days with a fixed rate of $19.99 (no matter the size of your order)

+1 (844)-467 8777

PHONE:

+1 (844)-467 8777

KOOBOOK 5Pcs MT8870 DTMF Voice Decoder Decoding Module Telephone/Audio Decoder Speech Module for Arduino

Regular Price: US$29.99

Special Price US$24.99

Availability: In stock

Supplier: KOOBOOK

Category: Electronics Computers & Accessories Computer Components Single Board Computers

Qty:

Applications: Paging systems Repeater systems/mobile radio Credit card systems Remote control Personal computers Telephone answering machine Note: Part of the PCB design, pin-pin VCC and GND of the silk screen to engage in anti-use, please check before use, thank you! We highly appreciate all customers opinions to improve the selling, also if anything you unsatisfied, please contact us for probable best solution. Package Includes: 5Pcs

The basic chip has been the main pin leads.PCB size: 26.5 (mm) x24.5 (mm). When the MT8870 solves a button value and outputs it to the outside, its STD pin will rise from a low state to a high state, and then drop to a low state after a period of time. With this feature, when the signal is detected by this pin, , the value generated by the Q1-Q4 pin is immediately read into the CPU, and then the button value of the phone is solved. After receiving the DTMF signal, it splits the signal into a high frequency band and a low frequency band, and sends the signal to the digital decoder to decode the key value, and then the solved key value is in a binary manner with four lines (Q1, Q2, Q3, Q4) output to the external shared Bus. It is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions. Onboard MT8870 complex frequency decoding chip,onboard voice input interface,onboard 5 LED indicator, easy to view the output status.