Revision 2:ad4b181a6422, committed 2016-10-19

Comitter:

meikefrok

Date:

Wed Oct 19 11:03:34 2016 +0000

Parent:

1:1d2208dce484

Child:

3:3a671d01bcb8

Commit message:

Button for Base Cart Arm, with LED

Changed in this revision

--- a/main.cpp	Tue Sep 20 08:43:33 2016 +0000
+++ b/main.cpp	Wed Oct 19 11:03:34 2016 +0000
@@ -1,17 +1,3 @@
-/**
- * Minor BioRobotics 2016
- *
- * Programming Homework Set 2
- * Exercise 2, example solution.
- *
- * Note that this problem can be solved in *much* cleaner ways, using slightly 
- * more advanced C++ / programming techniques. However, this example shows that
- * even with very basic programming skills quite a lot can be achieved.
- *
- * M.E. Grootens [at] utwente.nl,
- * v0.1, 16.09.2016
- */
-
 #include "mbed.h"
 
 // = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = >
@@ -27,16 +13,15 @@
 
 // = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = >
 // constants
-const int kNumLeds = 3;             // three LEDs
 const int kLedOn = 0;               // LED on if 0
 
 // LEDs
-DigitalOut led_0(LED_RED);
-DigitalOut led_1(LED_GREEN);
-DigitalOut led_2(LED_BLUE);
+DigitalOut led_r(LED_RED);
+DigitalOut led_g(LED_GREEN);
+DigitalOut led_b(LED_BLUE);
 
 // ID of led that should blink; *volatile* because changed by interrupt
-volatile int led_blink_id = 0;
+volatile int part_id = 0;
 
 // counters
 int num_turned_on_0 = 0;            // count number of times red LED turned on
@@ -54,43 +39,43 @@
  */
 void ToggleLed()
 {
-    switch (led_blink_id) {
+    switch (part_id) {
         case 0: {
             // LED 0 to toggle and count:
-            led_0 = not led_0;
-            if (led_0 == kLedOn) {
+            led_r = kLedOn;
+            if (led_r == kLedOn) {
                 num_turned_on_0++;
             }
             
             // LEDs to turn off:
-            led_1 = not kLedOn;
-            led_2 = not kLedOn;
+            led_g = not kLedOn;
+            led_b = not kLedOn;
             
             break;
         }
         case 1: {
             // LED 1 to toggle and count:
-            led_1 = not led_1;
-            if (led_1 == kLedOn) {
+            led_g = kLedOn;
+            if (led_g == kLedOn) {
                 num_turned_on_1++;
             }
             
             // LEDs to turn off:
-            led_0 = not kLedOn;
-            led_2 = not kLedOn;
+            led_r = not kLedOn;
+            led_b = not kLedOn;
             
             break;
         }
         case 2: {
             // LED 2 to toggle and count:
-            led_2 = not led_2;
-            if (led_2 == kLedOn) {
+            led_b = kLedOn;
+            if (led_b == kLedOn) {
                 num_turned_on_2++;
             }
             
             // LEDs to turn off:
-            led_0 = not kLedOn;
-            led_1 = not kLedOn;
+            led_r = not kLedOn;
+            led_g = not kLedOn;
             
             break;
         }
@@ -111,14 +96,20 @@
  * led_blink_id goes from 0 -> 1 -> 2 -> 0 -> ...
  * @ensure led_blink_id = ++led_blink_id % kNumStates
  */
-void SwitchLedColor() {
-    led_blink_id++;
-    if (led_blink_id>=kNumLeds) {
-        // could also use modulo ('%') operator
-        led_blink_id = 0;
-    } 
+void SetValue2() {
+    part_id = 0;
+   }
+
+void SetValue3() {
+    part_id = 1;
+   }
+
+
+void SetValue4() {
+    part_id = 2;
 }
 
+
 /**
  * Main loop.
  */
@@ -129,9 +120,9 @@
     pc.printf("\r\n**RESET**\r\n");
     
     // Turn off all LEDs initially
-    led_0 = not kLedOn;
-    led_1 = not kLedOn;
-    led_2 = not kLedOn;
+    led_r = not kLedOn;
+    led_g = not kLedOn;
+    led_b = not kLedOn;
     
     // Create ticker and attach LED toggle function
     Ticker tick_toggle_led;
@@ -142,8 +133,17 @@
     tick_print_serial.attach(&PrintSerial,kTimePrintSerial);
     
     // Create interrupt and attach switch function
-    InterruptIn sw2(SW2);
-    sw2.fall(&SwitchLedColor);
+    InterruptIn btn_base(D2);
+    btn_base.fall(&SetValue2);
     
+    InterruptIn btn_cart(D3);
+    btn_cart.fall(&SetValue3);
+
+    InterruptIn btn_arm(D4);
+    btn_arm.fall(&SetValue4);
+
     while (true);
 }
+
+
+
\ No newline at end of file