Revision 0:d511d7e52cd8, committed 2017-09-18

Comitter:

dralisz82

Date:

Mon Sep 18 12:30:35 2017 +0000

Commit message:

Bluetooth serial communication example;

Changed in this revision

diff -r 000000000000 -r d511d7e52cd8 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Sep 18 12:30:35 2017 +0000
@@ -0,0 +1,54 @@
+#include "mbed.h"
+
+DigitalOut red(LED_RED);
+DigitalOut green(LED_GREEN);
+DigitalOut blue(LED_BLUE);
+
+Serial pc(USBTX, USBRX);  // USB serial via debugger
+Serial BT(PTC15, PTC14);  // Bluetooth module header
+
+char color;
+
+/**
+ * UART Interrupt handler
+ */
+void gotChar() {
+    char c = BT.getc(); // read incoming character
+    pc.putc(c); // forward to debug serial
+    
+    // interpret received character as a command to switch color
+    if(c == 'r' || c == 'g' || c == 'b')
+        color = c;
+}
+
+/**
+ * Main thread
+ */
+int main()
+{
+    red = 1; green = 1; blue = 1; // turn off all LEDs
+    color = 'r'; // red is initial
+    
+    // initialization
+    BT.baud(9600); // HC-05 module works at this rate by default
+    pc.printf("Hello World!\n");
+    BT.printf("Hello World!\n");
+    BT.attach(&gotChar); // register interrupt handler
+    
+    // main program loop
+    while (true) {
+        wait(0.5f); // wait half second
+        if(color == 'r') {
+            red = !red; // toggle red
+            green = 1; blue = 1; // turn off other 2 colors
+        }
+        if(color == 'g') {
+            green = !green; // toggle green
+            red = 1; blue = 1; // turn off other 2 colors
+        }
+        if(color == 'b') {
+            blue = !blue; // toggle blue
+            red = 1; green = 1; // turn off other 2 colors
+        }
+    }
+}

diff -r 000000000000 -r d511d7e52cd8 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Mon Sep 18 12:30:35 2017 +0000
@@ -0,0 +1,1 @@
+https://mbed.org/users/mbed_official/code/mbed/builds/a330f0fddbec
\ No newline at end of file