 
 void readActiveBus() {
   while(bus[activeBus]->available()) {
-    if(SERIAL_DEBUG) {
-      Serial.print("a");
-      Serial.println(activeBus);
-    }
     int message = int(bus[activeBus]->read());
+    // if(SERIAL_DEBUG) {
+    //   Serial.print("a");
+    //   Serial.println(activeBus);
+    // }
     if(message != 0) {
       if(SERIAL_DEBUG) {
         Serial.print(activeBus);

  if(SERIAL_DEBUG) {
    Serial.print("w");
    Serial.print(busIndex);
  }
  // begin with pulse so other side can start listening
  digitalWrite(TX[busIndex], LOW);

  }

  if(SERIAL_DEBUG) {
    Serial.println("dropping random connector");
  }

  // give communication a break and drop connector
