Tanotis MT8870 DTMF Voice Decoder Module Telephone/ audio Decoder Speech decoding module Transformers A 100mm diameter (outside diameter)

A 100mm diameter (outside diameter) dome illuminated push button comes with an LED

Drivers are currently available for most platforms including:

Alarm Output : Buzzer

eliminating the need to stack multiple shields

Rated Voltage : 12V

Tanotis MT8870 DTMF Voice Decoder Module Telephone/ audio Decoder Speech decoding module Transformers A 100mm diameter (outside diameter)MT8870 DTMF Voice Decoder Module Telephone audio Decoder Speech decoding module Features: 1, onboard complex frequency decoder chip MT8870 2, voice input interface board 3, onboard five LED indicators for easy viewing output state 4, the chip have been drawn mainly basic pin 5, PCB size: 26. 5 (mm) x24. 5 (mm) Note: PCB design, VCC pin and GND pin are in the opposite position, please be caution! The VCC pin should be the GND pin , and the GND pin