Example of BLE scan/connect/service discovery
Fork of BLE_LEDBlinker by
Diff: main.cpp
- Revision:
- 1:1db45b17552e
- Parent:
- 0:415d7f24cb91
- Child:
- 2:3e1e967035cb
--- a/main.cpp Fri Jun 05 14:40:15 2015 +0000
+++ b/main.cpp Mon Jun 08 06:26:18 2015 +0000
@@ -22,7 +22,7 @@
BLEDevice ble;
DigitalOut led1(LED1);
-bool ledCharacteristicDiscovered = false;
+bool triggerLedCharacteristic = false;
DiscoveredCharacteristic ledCharacteristic;
void periodicCallback(void) {
@@ -55,9 +55,9 @@
void characteristicDiscoveryCallback(const DiscoveredCharacteristic *characteristicP) {
printf(" C UUID-%x valueAttr[%u] props[%x]\r\n", characteristicP->getShortUUID(), characteristicP->getValueHandle(), (uint8_t)characteristicP->getProperties().broadcast());
- if (characteristicP->getShortUUID() == 0xa001) {
- ledCharacteristic = *characteristicP;
- ledCharacteristicDiscovered = true;
+ if (characteristicP->getShortUUID() == 0xa001) { /* !ALERT! Alter this filter to suit your device. */
+ ledCharacteristic = *characteristicP;
+ triggerLedCharacteristic = true;
}
}
@@ -113,8 +113,8 @@
ble.startScan(advertisementCallback);
while (true) {
- if (ledCharacteristicDiscovered && !ble.isServiceDiscoveryActive()) {
- ledCharacteristicDiscovered = false;
+ if (triggerLedCharacteristic && !ble.isServiceDiscoveryActive()) {
+ triggerLedCharacteristic = false;
ledCharacteristic.read(); /* We could have issued this read just as easily from
* characteristicDiscoveryCallback(); but
* this demonstrates the use of
