// send all AI

void setup() {
  Serial.begin(9600);
}

String readTime = "";
long acttime = 0;
long lasttime = 0;
long sendfrq = 5000; // millisec
int channels = 6;

//_____________________________________________________________
void maketime() {
     int days = 0;
     int hours = 0;
     int minutes = 0;
     int seconds = 0;
     long workm = acttime / 1000;
     days = workm/60/60/24;
     hours = (workm - days*60*60*24)/60/60;
     minutes = (workm - days*60*60*24 - hours*60*60)/60;
     seconds = workm - days*60*60*24 - hours*60*60 - minutes*60;
     readTime =  "2016-04-"; days += 15;   // kll dirty for test only later use RTC
     readTime += days;
     readTime += " ";
     readTime += hours;
     readTime += ":";
     readTime += minutes;
     readTime += ":";
     readTime += seconds;
               }
//_____________________________________________________________
void loop() {
    // form a JSON-formatted string like:
    // {"time":"10:30:00","A0":"669","A1":"0","A2":"1021","A3":"686","A4":"1018","A5":"1018"}
    acttime = millis();

    if ( acttime - lasttime > sendfrq ) {
      lasttime = acttime;
      maketime();
/* that is the named list style
String jsonString = "{\"time\":\"";
      jsonString += readTime;
      for ( int i=0; i<6; i++ ) {
         jsonString += "\",\"A";
         jsonString +=  i;
         jsonString +=  "\":\"";
         jsonString +=  analogRead(i);
                                }  // end loop over Ains
      jsonString +="\"}";
*/
String jsonString = "";                        
       jsonString += "{\"CHANNELS\":";
       jsonString += channels;
       jsonString += ",\"TIME\":\"";
       jsonString += readTime;       
       jsonString += "\",\"AIN\":[";
       for ( int i=0; i<channels; i++ ) {
         jsonString +=  analogRead(i);
         if ( i < channels-1 ) { jsonString += ","; }    // not do a trailing ,
                                }  // end loop over Ains
       jsonString +="],\"DESC\":[\"ain0\",\"ain1\",\"ain2\",\"ain3\",\"ain4\",\"ain5\"]}";
       // send to MEAN RPI
       Serial.println(jsonString);
    }  // end time to send
}  // end loop