Diff: main.cpp

Revision:

27:ed42554cf870

Parent:

26:b3e90d7672f8

Child:

28:382c630bae02

--- a/main.cpp	Sat Jun 10 00:51:10 2017 +0000
+++ b/main.cpp	Sat Jun 10 01:03:26 2017 +0000
@@ -1,13 +1,13 @@
 #include "mbed.h"
 #include "ble/BLE.h"
 
-DigitalOut led(LED1, 1);
+DigitalOut led(P0_19, 1);
 uint16_t customServiceUUID  = 0xA000;
 uint16_t readCharUUID       = 0xA001;
 uint16_t writeCharUUID      = 0xA002;
 
-const static char     DEVICE_NAME[]        = "timesync1"; // change this
-static const uint16_t uuid16_list[]        = {0xA000}; //Custom UUID, FFFF is reserved for development
+const static char     DEVICE_NAME[]        = "ChangeMe!!"; // change this
+static const uint16_t uuid16_list[]        = {0xFFFF}; //Custom UUID, FFFF is reserved for development
 
 /* Set Up custom Characteristics */
 static uint8_t readValue[10] = {0};
@@ -20,23 +20,27 @@
 GattCharacteristic *characteristics[] = {&readChar, &writeChar};
 GattService        customService(customServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *));
 
+
+/*
+ *  Restart advertising when phone app disconnects
+*/
 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *)
 {
+    led = 1;    // just in case
     BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising();
 }
 
+/*
+ *  Handle writes to writeCharacteristic
+*/
 void writeCharCallback(const GattWriteCallbackParams *params)
 {
     /* Check to see what characteristic was written, by handle */
     if(params->handle == writeChar.getValueHandle()) {
-        /* toggle LED if only 1 byte is written */
-        if(params->len == 1) {
-            led = 1;
-            wait(0.5);
-            led = 0;
-        }
-        /* Update the readChar with the value of writeChar */
-        BLE::Instance(BLE::DEFAULT_INSTANCE).gattServer().write(readChar.getValueHandle(), params->data, params->len);
+        // since LED is pullup mode
+        led = 0;
+        wait(1.0);
+        led = 1;
     }
 }
 /*