bianchi77
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Friends,
Anyone knows on how to control relay using DTMF (MT8870) and AT89S52 ?
How can I make the circuit answer the call automatically and accept command from DTMF ?
The idea is, if there's a call, the circuit will auto pickup after 3 beep and ready for a command from a remote phone, for example, numeric "1" for turning on "relay 1"
Thanks for the info
Anyone knows on how to control relay using DTMF (MT8870) and AT89S52 ?
How can I make the circuit answer the call automatically and accept command from DTMF ?
The idea is, if there's a call, the circuit will auto pickup after 3 beep and ready for a command from a remote phone, for example, numeric "1" for turning on "relay 1"
Thanks for the info