Example of BLE scan/connect/service discovery

Fork of BLE_LEDBlinker by Bluetooth Low Energy

Revision:
14:92bb9a8ccd0b
Parent:
13:75f95a5cf9c1
--- a/main.cpp	Fri Dec 09 10:10:14 2016 +0000
+++ b/main.cpp	Thu Apr 20 06:54:25 2017 +0000
@@ -21,12 +21,6 @@
 
 DigitalOut alivenessLED(LED1, 1);
 
-#if defined(TARGET_DELTA_DFCM_NNN40)
-Serial uart(p17, p16);//temp use for NNN50
-#else
-Serial uart(USBTX, USBRX);
-#endif
-
 bool                     triggerLedCharacteristic = false;
 DiscoveredCharacteristic ledCharacteristic;
 
@@ -40,7 +34,7 @@
     if (params->peerAddr[0] != 0xF9) { /* !ALERT! Alter this filter to suit your device. */
         return;
     }
-    uart.printf("adv peerAddr[%02x %02x %02x %02x %02x %02x] rssi %d, isScanResponse %u, AdvertisementType %u\r\n",
+    printf("adv peerAddr[%02x %02x %02x %02x %02x %02x] rssi %d, isScanResponse %u, AdvertisementType %u\r\n",
            params->peerAddr[5], params->peerAddr[4], params->peerAddr[3], params->peerAddr[2], params->peerAddr[1], params->peerAddr[0],
            params->rssi, params->isScanResponse, params->type);
 
@@ -48,43 +42,43 @@
 }
 
 void serviceDiscoveryCallback(const DiscoveredService *service) {
-    uart.printf("serviceDiscoveryCallback\n");
+    printf("serviceDiscoveryCallback\n");
     if (service->getUUID().shortOrLong() == UUID::UUID_TYPE_SHORT) {
-        uart.printf("S UUID-%x attrs[%u %u]\r\n", service->getUUID().getShortUUID(), service->getStartHandle(), service->getEndHandle());
+        printf("S UUID-%x attrs[%u %u]\r\n", service->getUUID().getShortUUID(), service->getStartHandle(), service->getEndHandle());
     } else {
-        uart.printf("S UUID-");
+        printf("S UUID-");
         const uint8_t *longUUIDBytes = service->getUUID().getBaseUUID();
         for (unsigned i = 0; i < UUID::LENGTH_OF_LONG_UUID; i++) {
-            uart.printf("%02x", longUUIDBytes[i]);
+            printf("%02x", longUUIDBytes[i]);
         }
-        uart.printf(" attrs[%u %u]\r\n", service->getStartHandle(), service->getEndHandle());
+        printf(" attrs[%u %u]\r\n", service->getStartHandle(), service->getEndHandle());
     }
 }
 
 void characteristicDiscoveryCallback(const DiscoveredCharacteristic *characteristicP) {
     if (characteristicP->getUUID().shortOrLong() == UUID::UUID_TYPE_SHORT) {
-        uart.printf("  C UUID-%x valueAttr[%u] props[%x]\r\n", characteristicP->getUUID().getShortUUID(), characteristicP->getValueHandle(), (uint8_t)characteristicP->getProperties().broadcast());
+        printf("  C UUID-%x valueAttr[%u] props[%x]\r\n", characteristicP->getUUID().getShortUUID(), characteristicP->getValueHandle(), (uint8_t)characteristicP->getProperties().broadcast());
         if (characteristicP->getUUID().getShortUUID() == 0x2a19) { /* !ALERT! Alter this filter to suit your device. */   
             ledCharacteristic        = *characteristicP;
             triggerLedCharacteristic = true;
         }
     }
     else {
-        uart.printf("  C UUID-");
+        printf("  C UUID-");
         const uint8_t *longUUIDBytes = characteristicP->getUUID().getBaseUUID();
         for (unsigned i = (UUID::LENGTH_OF_LONG_UUID) - 1; i < UUID::LENGTH_OF_LONG_UUID; i--) {
-            uart.printf("%02x ", longUUIDBytes[i]);
+            printf("%02x ", longUUIDBytes[i]);
         }
-        uart.printf(" valueAttr[%u] props[%x]\r\n", characteristicP->getValueHandle(), (uint8_t)characteristicP->getProperties().broadcast());
+        printf(" valueAttr[%u] props[%x]\r\n", characteristicP->getValueHandle(), (uint8_t)characteristicP->getProperties().broadcast());
     }
 }
 
 void discoveryTerminationCallback(Gap::Handle_t connectionHandle) {
-    uart.printf("terminated SD for handle %u\r\n", connectionHandle);
+    printf("terminated SD for handle %u\r\n", connectionHandle);
 }
 
 void connectionCallback(const Gap::ConnectionCallbackParams_t *params) {
-    uart.printf("connectionCallback\n");
+    printf("connectionCallback\n");
     if (params->role == Gap::CENTRAL) {
         BLE::Instance().gattClient().onServiceDiscoveryTermination(discoveryTerminationCallback);
         BLE::Instance().gattClient().launchServiceDiscovery(params->handle, serviceDiscoveryCallback, characteristicDiscoveryCallback);
@@ -94,11 +88,11 @@
 void triggerToggledWrite(const GattReadCallbackParams *response) {
     if (response->handle == ledCharacteristic.getValueHandle()) {
 #if DUMP_READ_DATA
-        uart.printf("triggerToggledWrite: handle %u, offset %u, len %u\r\n", response->handle, response->offset, response->len);
+        printf("triggerToggledWrite: handle %u, offset %u, len %u\r\n", response->handle, response->offset, response->len);
         for (unsigned index = 0; index < response->len; index++) {
-            uart.printf("%c[%02x]", response->data[index], response->data[index]);
+            printf("%c[%02x]", response->data[index], response->data[index]);
         }
-        uart.printf("\r\n");
+        printf("\r\n");
 #endif
 
         uint8_t toggledValue = response->data[0] ^ 0x1;
@@ -113,7 +107,7 @@
 }
 
 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) {
-    uart.printf("disconnected\r\n");
+    printf("disconnected\r\n");
 }
 
 /**
@@ -154,7 +148,7 @@
 }
 
 int main(void) {
-    uart.printf("APPLICATION START\r\n");
+    printf("APPLICATION START\r\n");
     ticker.attach(periodicCallback, 1);
 
     BLE &ble = BLE::Instance();
@@ -163,7 +157,7 @@
     /* SpinWait for initialization to complete. This is necessary because the
      * BLE object is used in the main loop below. */
     while (ble.hasInitialized()  == false) { /* spin loop */ }
-    uart.printf("init DONE\r\n");
+    printf("init DONE\r\n");
     while (true) {
         if (triggerLedCharacteristic && !ble.gattClient().isServiceDiscoveryActive()) {
             triggerLedCharacteristic = false;