Quick Context: In this iteration of the phone line simulator project, now that the ESP8266 can generate call progress tones, I added a PCF8574 ... only Arduino Nano (ATmega328P alone), fun, neat and elegant no need MT8870 module.
How To Make Dtmf Decoder Using 8870 Ic Sdevelectronics -
In this iteration of the phone line simulator project, now that the ESP8266 can generate call progress tones, I added a PCF8574 ... only Arduino Nano (ATmega328P alone), fun, neat and elegant no need MT8870 module.
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- In this iteration of the phone line simulator project, now that the ESP8266 can generate call progress tones, I added a PCF8574 ...
- only Arduino Nano (ATmega328P alone), fun, neat and elegant no need MT8870 module.
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