Add new file

arduino/sketchist-pserial.ino

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+#include "Ultrasonic.h"
+Ultrasonic ultrasonic(8,9); // Trig et Echo
+ 
+void setup() {
+  Serial.begin(9600);
+  pinMode (11, OUTPUT);
+  pinMode (12, OUTPUT);
+}
+
+void loop () {
+  int dist = ultrasonic.Ranging(CM);
+  Serial.print(dist);
+  Serial.println(" cm");
+
+  delay(100);
+}