I want to see the status of the port but the following code gives me error
int PIN25_state = digitalRead(25); //read PIN25
Serial.println("PIN25_state: ", PIN25_state);
The error I get is
no matching function for call to 'println(const char [14], int&)'
refer to Serial.print() docs , the parameters of the function print() is same as println()
where the first argument is what you want to send to through the serial , and the second argument is the format like HEX, BIN, DEC, etc...
so what you are doing is wrong.
you should do instead :
int PIN25_state = digitalRead(25); //read PIN25
Serial.print("PIN25_state: ");
Serial.println(PIN25_state);
where print() will put the value in the same line without new line and println() will make it print then go to new line
