ITEM NAME:1x MT8870 DTMF Voice Tone Audio Decoder Module Board for Arduino Phone GPRS Description : Onboard complex frequency decoder chip MT8870 Voice input interface board Onboard five LED indicators for easy viewing output state The chip have been drawn mainly basic pin 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 should be the VCC pin Material:Plastic Color: Blue and black Package Included: 1x Voice Decoder Module.Onboard complex frequency decoder chip MT8870. 1x Voice Decoder Module. Voice input interface board. Color: Blue and black. People always bought together with. Onboard five LED indicators for easy viewing output state.
