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DTMF CONFIGURATION

CONTROL UP TO 5 REMOTE CONTROL ELECTRICAL SOCKETS USING OUR MODULE WITH A DTMF MODULE 

See video demonstration here.

In DTMF Mode you can connect a cheap DTMF module to our Module. You then connect a mobile/cell phone to the DTMF module with an audio cable. The phone you use must have automatic answering enabled. You then make a call to this phone from anywhere in the world. It will answer automatically. You can then key in the required number and hang up. There is a charge when using DTMF Mode because the call is answered.

You will of course have to pair the remote sockets to our Module before you can use our Module in DTMF Mode. See Modes of Operation in the menu bar to see how to accomplish this.

Dialling 1 turns ON Socket No. 1            Dialling 2 turns OFF Socket No. 1

Dialling 3 turns ON Socket No. 2            Dialling 4 turns OFF Socket No. 2

Dialling 5 turns ON Socket No. 3            Dialling 6 turns OFF Socket No. 3

Dialling 7 turns ON Socket No. 4            Dialling 8 turns OFF Socket No. 4

Dialling 9 turns ON Socket No. 5            Dialling 0 turns OFF Socket No. 5

 

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As you can see from the diagram there is a slightly different configuration required to operate this Mode. You need to connect the resistor from pin A1 to Ground pin and connect the 3.3V pin to A1 pin. This is done with power removed from both modules.

The DTMF module and audio cable are available very cheaply on eBay or Aliexpress very cheaply. At time of writing the DTMF module is available for €0.43 and the audio cable for €0.65.

One word of warning, a lot of these DTMF modules have mislabelled the Ground and Vcc pins. They show these pins reversed.

 

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