Hello ; I dont know english well :slight_smile: sorry I will make Cm8870 arduino project I m make code for test . const int Q[4]={ 6,5,4,3}; void setup() { Serial.begin(9600); for(int i=0;i<4;i++) pinMode(Q[i],INPUT); } void loop() { dtmf(); } void dtm…

CM8870 arduino problem

system June 22, 2013, 10:14pm 6

I will try another jack . How ? connect ?

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