added material for masterclass

README.md

@@ -22,4 +22,6 @@
 
 [intro to microbit](https://raw.githack.com/fbrusch/actam_2024/gh-pages/embeddedprogramming.html) ->[link alla registrazione](https://politecnicomilano.webex.com/webappng/sites/politecnicomilano/recording/bbb0bf42ff144bd6bd8956965029c1b2/playback)
 
-[intro to arduino](https://raw.githack.com/fbrusch/actam_2024/gh-pages/embeddedprogramming2.html) ->[link alla registrazione](https://politecnicomilano.webex.com/webappng/sites/politecnicomilano/recording/f866bfc1ee0a4686a11e0e38400d430b/playback)
+[intro to arduino](https://raw.githack.com/fbrusch/actam_2024/gh-pages/embeddedprogramming2.html) ->[link alla registrazione](https://politecnicomilano.webex.com/webappng/sites/politecnicomilano/recording/f866bfc1ee0a4686a11e0e38400d430b/playback)
+
+[masterclass slides](https://1drv.ms/p/c/4d280c2f32065447/EQVH2Ro1GI1JinkjamqhWU8B6HQJbALql3cM5MHNlziCzw?e=QSiFzy)

masterclass/arduino/pot_radar_ultrasound/pot_radar_ultrasound.ino

@@ -0,0 +1,48 @@
+
+
+// POT INPUT
+int potPin = A0; 
+int potVal = 0; 
+
+// RADAR
+int radarPin = 2; 
+int radarState = LOW;
+int radarVal = 0;
+
+// ULTRASONIC
+int trigPin = 9;
+int echoPin = 10;
+float duration, dist;
+
+void setup()
+{
+  pinMode(radarPin, INPUT);
+  pinMode(trigPin, OUTPUT);
+  pinMode(echoPin, INPUT);
+  Serial.begin(9600); 
+}
+
+
+void loop()
+{
+  potVal = analogRead(potPin);   // read the potentiometer value at the input pin
+  radarVal = digitalRead(radarPin);
+
+  digitalWrite(trigPin, LOW);
+  delayMicroseconds(2);
+  digitalWrite(trigPin, HIGH);
+  delayMicroseconds(10);
+  digitalWrite(trigPin, LOW);
+
+  duration = pulseIn(echoPin, HIGH);
+  dist = (duration*.0343)/2;
+
+  Serial.print(potVal);
+  Serial.print(" ");
+  Serial.print(radarVal);
+  Serial.print(" ");
+  Serial.print(dist);
+  Serial.println();
+
+  delay(50);
+}

masterclass/arduino/velostat_matrix_6x6/velostat_matrix_6x6.ino

@@ -0,0 +1,42 @@
+
+#define numRows 6
+#define numCols 6
+#define sensorPoints numRows*numCols
+
+int rows[] = {A0,A1,A2,A3,4,5};
+int cols[] = {2,3,4,5,6,7};
+int incomingValues[sensorPoints] = {};
+
+void setup() {
+// set all rows and columns to INPUT (high impedance):
+for (int i = 0; i < numRows; i++) { 
+  pinMode(rows[i], INPUT_PULLUP); 
+  }
+for (int i = 0; i < numCols; i++) { 
+  pinMode(cols[i], INPUT); 
+  } 
+  Serial.begin(115200); 
+  } 
+
+void loop() { 
+  for (int colCount = 0; colCount < numCols; colCount++) { 
+
+    pinMode(cols[colCount], OUTPUT); // set as OUTPUT 
+    digitalWrite(cols[colCount], LOW); // set LOW 
+    for (int rowCount = 0; rowCount < numRows; rowCount++) { 
+
+      incomingValues[colCount * numRows + rowCount] = analogRead(rows[rowCount]); // read INPUT 
+      }// end rowCount 
+
+      pinMode(cols[colCount], INPUT); // set back to INPUT! 
+    }// end colCount 
+
+    // Print the incoming values of the grid: 
+    for (int i = 0; i < sensorPoints; i++) { 
+      Serial.print(incomingValues[i]); 
+      if (i < sensorPoints - 1) 
+      Serial.print(" "); 
+      } 
+      Serial.println(); 
+      delay(10); 
+      }