Implementation of a joystick

joystick_control/joystick_control.ino

@@ -0,0 +1,44 @@
+//Constants
+#define NUM_JOY 2
+#define MIN_VAL 0
+#define MAX_VAL 1023
+
+//Parameters
+const int joyPin[2] = {A0, A1};
+const int joyOffset = 7; // from the calibration phase
+
+//Variables
+int joyVal [NUM_JOY] = {0, 0};
+
+void setup() {
+  //Init Serial USB
+  Serial.begin(9600);
+  Serial.println(F("Initialize System"));
+  //Init Joystick
+  for (int i = 0; i < NUM_JOY; i++)
+  {
+    pinMode(joyPin[i], INPUT);
+  }
+}
+
+void loop() {
+  readJoystick();
+  delay(500);
+}
+
+void readJoystick( ) { /* function readJoystick */
+  ////Test routine for Joystick
+  for (int i = 0; i < NUM_JOY; i++) {
+      joyVal[i] = analogRead(joyPin[i]);
+      Serial.print(F("joy")); Serial.print(i); Serial.print(F(" : ")); Serial.println(joyVal[i]);
+  }
+  for (int i = 0; i < NUM_JOY; i++) {
+      Serial.print(F("Conv")), Serial.print(i); Serial.print(F(" : ")); Serial.println(joyRawToPhys(joyVal[i]));
+  }
+}
+
+float joyRawToPhys(int raw) { /* function joyRawToPhys */
+  ////Joystick conversion rule
+  float phys = map(raw, MIN_VAL, MAX_VAL, -100, 100) + joyOffset;
+  return phys;
+}