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

Introducing the KOOBOOK 5Pcs MT8870 DTMF Voice Decoder Decoding Module, the perfect solution for applications such as paging systems, repeater systems, mobile radio, credit card systems, remote control, personal computers, and telephone answering machines. This module is designed to easily view the output status as it comes with an onboard 5 LED indicator. One of the key features of this module is that it is an integrated DTMF receiver which combines both the bandsplit filter and digital decoder functions into one module.

With this, the MT8870 solves a button value and outputs it to the outside, and then the button value of the phone is solved. The basic chip has been the main pin leads, and the PCB size is 26.5 (mm) x24.5 (mm), making it easy to incorporate into any project. Additionally, this module comes with an onboard voice input interface, making it a complete DTMF decoder. When the DTMF signal is received, it splits the signal into a high frequency band and a low frequency band and sends it to the digital decoder to decode the key value.

The key value is then output with four lines (Q1, Q2, Q3, Q4) in a binary manner to the external shared bus. Please ensure that you check the silk screen of the PCB design before use as the VCC and GND pins are anti-use. We highly value all customer opinions to improve our products, and we are always available to provide the best solution in case of any issues. Invest in the KOOBOOK MT8870 voice module, and get all the benefits of the DTMF decoder IC module, voice recognition module, and speech recognition module Arduino all in one package. Purchase this DTMF decoder circuit Arduino module today, and take your project to the next level.