*The MT8870 module decodes DTMF signals from an audio source and it is suitable for remote monitoring applications, telephone answering machines and more.
*The IC is a low power device DTMF decoder chip. It is a complete DTMF receiver integrating both the band-split filter and digital decoding functions.
*This module is suitable for modem interfaces, mobile radios and other DTMF related applications.
Details: *On-board MT8870 frequency decoder chip.
*On-board audio input interface.
*On-board LED lights for output state indicatio.
*Main basic have lead to pin chip.
*PCB Size: 26.5 * 24.5 mm.
*Note: this version PCB design, row needle pin VCC &gnd printing engage in counter, please use caution and use it every time!
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