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DTMF Shield
This DTMF Shield is a Dual-tone multi-frequency signaling module decoder for Arduino With it’s audio connector you can decode the crazy funny noises common phones make. If you are not sure what I’m talking about, imagine a home phone while pressing several of its keys. These Touch-Tones have a specific frequency or sound that this module can decode. This Shield is a Audio code system that will allow you to send commands to your Arduino via Audio signal.
Specifications:
Audio socket for application
37x37x9mm?1.46×1.46×0.35??
Speaker connector for audio sound checking.
Microphone connector for over the air remote control system( note, due to environmental noise, without any filtering system this method is not recommended)
This seller has been a member since: May. 12, 2015
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