IOIO: added working analogInput example

- CPU usage seems excessive, requires profiling on the java side

Author: chrisws

ioio/samples/slider-pot.bas

@@ -0,0 +1,17 @@
+import ioio
+
+analogIn = ioio.openAnalogInput(46)
+
+print "wait for connect"
+ioio.waitForConnect()
+print "ready!!!"
+
+while 1
+  print analogIn.read()
+  delay 100
+wend
+
+print "done"
+
+
+

ioio/src/main/java/net/sourceforge/smallbasic/ioio/IOService.java

@@ -12,7 +12,7 @@
 
 public class IOService implements IOIOLooperProvider  {
   private static final String TAG = "IOService";
-  private static final int MAX_PINS = 43;
+  private static final int MAX_PINS = 46;
   private static IOService instance = null;
 
   private final ConnectionController connectionController;
@@ -24,7 +24,7 @@ private IOService() {
     connectionController = new ConnectionController(this);
     looper = new IOServiceLooper();
     ioTasks = new ArrayList<>();
-    usedPins = new Boolean[MAX_PINS];
+    usedPins = new Boolean[MAX_PINS + 1];
   }
 
   public static IOService getInstance() {
@@ -57,7 +57,7 @@ public void start() {
 
   private void registerPin(int pin) throws IOException {
     if (pin != -1) {
-      if (pin < 0 || pin >= MAX_PINS) {
+      if (pin < 0 || pin > MAX_PINS) {
         throw new IOException("invalid pin: " + pin);
       }
       if (usedPins[pin] != null && usedPins[pin]) {
@@ -88,6 +88,7 @@ public void incompatible(IOIO ioio) {
 
     @Override
     public void loop() throws ConnectionLostException, InterruptedException {
+      Thread.sleep(100);
       for (IOTask next: ioTasks) {
         next.loop();
       }