       switch (ack_payload.key) {
         case 255:
           monitor.pps = ack_payload.val;
-          break;
-        case 253:
-          monitor.vcc_tx = ack_payload.val;
-          break;
-          
+          break;          
         case 0:
           monitor.vcc_rx = ack_payload.val;
           break;

          monitor.roll = ack_payload.val;
          break;
      }
      
    } else {
      ack_flag = 0; 

    
  }
  
  // Read the battery level
  if (now - vcc_last > 1000) {
    vcc = batteryVcc(); 
  }
  
  // Change the display if there is no serial data from the transmitter
  if (now - comms_last > 250) {
    memset(&monitor, 0, sizeof(monitor_t));
  }
