     radio.SendWait(); // wait for completion
     
     // wait for next send.
-    delay(sendInterval);
+ //   delay(sendInterval);
   }
 
   Serial << F("Packet sending complete at ") << millis() / 1000 << F(" sec.") << endl;

      doRx(); // receive radio traffic
      
      static boolean showAPA=true;
      static boolean showWS=true;
      doLeds(showAPA, showWS); // update the leds
      
      break;

#define N_PACKETS 100

// APA102 led strip.  Note, this is only used on the Rx side.
#define APA_NLED 200
#define APA_DATA_PIN 4 // DI. JeeNode DO on Port 1. at the end of JeeNode LN.
#define APA_CLOCK_PIN 7 // CI.  JeeNode DO on Port 4. mid-span of JeeNode LN.
Adafruit_DotStar APAleds = Adafruit_DotStar(APA_NLED, APA_DATA_PIN, APA_CLOCK_PIN);
