Bluetooth HC05 + KL25Z communicate with Bluetooth dongle in PC in both directions.

Dependencies:   mbed

Revision:
0:0e236e004748
Child:
1:e73a7c99f767
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Dec 02 13:21:04 2017 +0000
@@ -0,0 +1,59 @@
+/*
+ * Author: G. Pathuis
+ * Date: 02-12-17
+ * Notes: HC05 connected to a KL25Z
+ * Pair with PC use password 1234
+ *
+ * Four wire connection
+ * HC05 to KL25Z
+ * GND to GND
+ * +5V to 5V
+ * TX to pin PTE0
+ * RX to pin PTE1
+ *
+ * Open Tera Term session to connect to KL25Z
+ * and
+ * Open second Tera Term session to read the Bluetooth
+ * dongle in the PC
+ *
+ * Make sute Tera Term uses 9600 baud
+*/
+
+#include "mbed.h"
+
+
+Serial pc(USBTX, USBRX);
+Serial blue(PTE0, PTE1);          // TX, RX
+
+DigitalOut myled(LED1);
+DigitalOut myled2(LED2);
+
+
+int main()
+{
+    int i =0;
+    blue.baud(9600);               // Default Bluetooth Baudrate
+    pc.baud(9600);
+
+    pc.printf("Bluetooth Start\r\n");
+
+    // Write from Bluetooth to PC
+    for (i=0; i<10; i++) {
+        blue.printf("Hello PC this is the HC-05, %d\n\r", i);
+        myled = !myled;
+    }
+    wait(1);
+
+    // Echo back characters and toggle the LED
+    while (1) {
+        if (blue.readable()) {
+            pc.putc(blue.getc());
+            myled = !myled;
+        }
+        if (pc.readable()) {
+            blue.putc(pc.getc());
+            myled2 = !myled2;
+        }
+        wait_ms(10);
+    }
+}
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