diff --git a/arduino/src/sketch.ino b/arduino/src/sketch.ino
index d6d129b..7772e56 100644
--- a/arduino/src/sketch.ino
+++ b/arduino/src/sketch.ino
@@ -128,8 +128,9 @@ void analogR(int pin) {
   if(pin == -1) { Serial.println("badpin"); return; }
   pinMode(pin, INPUT);
   int rval = analogRead(pin);
-  Serial.println(String(pin + "::" + rval));
-
+  Serial.print(pin);
+  Serial.print("::");
+  Serial.println(rval);
 }
 
 void handleRCDecimal(uint8_t val[], int pin) {