- Additional information
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- Product Enquiry
DTMF signal is the telecommunication signal over the analog phone signal, this module can recognized the button pressed signal from the analog phone signal.
- Onboard DTMF chip MT8870
- Onboard voice input interface/jack
- Onboard five LED indicators for easy viewing output state
- Chips are pin all brought out
- PCB Size: 26.5 (mm) x24.5 (mm)
medvonok (verified owner) –
It is a wonderful idea for a GSM communication.