Fabio Dal Forno / Mbed 2 deprecated BLE_GATT

Esempio Gatt Base

Dependencies:   BLE_API X_NUCLEO_IDB0XA1 mbed

Fork of BLE_HeartRate_IDB0XA1 by ST

main.cpp@22:f9fd5024f7ea, 2018-01-10 (annotated)

Committer:
fdalforno
Date:
Wed Jan 10 20:19:29 2018 +0000
Revision:
22:f9fd5024f7ea
Parent:
21:0e7c08f5386f 
Esempio GATT Base

Who changed what in which revision?

UserRevisionLine numberNew contents of line
screamer 0:eb7f02ad28a7 1 #include "mbed.h"
screamer 0:eb7f02ad28a7 2 #include "ble/BLE.h"
fdalforno 22:f9fd5024f7ea 3
fdalforno 22:f9fd5024f7ea 4 DigitalOut led(LED1, 1);
fdalforno 22:f9fd5024f7ea 5 uint16_t customServiceUUID = 0xA000;
fdalforno 22:f9fd5024f7ea 6 uint16_t readCharUUID = 0xA001;
fdalforno 22:f9fd5024f7ea 7 uint16_t writeCharUUID = 0xA002;
fdalforno 22:f9fd5024f7ea 8
fdalforno 22:f9fd5024f7ea 9 const static char DEVICE_NAME[] = "Pippo"; // change this
fdalforno 22:f9fd5024f7ea 10 static const uint16_t uuid16_list[] = {0xFFFF}; //Custom UUID, FFFF is reserved for development
fdalforno 22:f9fd5024f7ea 11
fdalforno 22:f9fd5024f7ea 12 /* Set Up custom Characteristics */
fdalforno 22:f9fd5024f7ea 13 static uint8_t readValue[10] = {0};
fdalforno 22:f9fd5024f7ea 14 ReadOnlyArrayGattCharacteristic<uint8_t, sizeof(readValue)> readChar(readCharUUID, readValue);
fdalforno 22:f9fd5024f7ea 15
fdalforno 22:f9fd5024f7ea 16 static uint8_t writeValue[10] = {0};
fdalforno 22:f9fd5024f7ea 17 WriteOnlyArrayGattCharacteristic<uint8_t, sizeof(writeValue)> writeChar(writeCharUUID, writeValue);
fdalforno 22:f9fd5024f7ea 18
fdalforno 22:f9fd5024f7ea 19 /* Set up custom service */
fdalforno 22:f9fd5024f7ea 20 GattCharacteristic *characteristics[] = {&readChar, &writeChar};
fdalforno 22:f9fd5024f7ea 21 GattService customService(customServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *));
fdalforno 22:f9fd5024f7ea 22
fdalforno 22:f9fd5024f7ea 23
fdalforno 22:f9fd5024f7ea 24 /*
fdalforno 22:f9fd5024f7ea 25 * Restart advertising when phone app disconnects
fdalforno 22:f9fd5024f7ea 26 */
fdalforno 22:f9fd5024f7ea 27 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *)
screamer 0:eb7f02ad28a7 28 {
fdalforno 22:f9fd5024f7ea 29 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising();
screamer 0:eb7f02ad28a7 30 }
fdalforno 22:f9fd5024f7ea 31
fdalforno 22:f9fd5024f7ea 32 /*
fdalforno 22:f9fd5024f7ea 33 * Handle writes to writeCharacteristic
fdalforno 22:f9fd5024f7ea 34 */
fdalforno 22:f9fd5024f7ea 35 void writeCharCallback(const GattWriteCallbackParams *params)
screamer 0:eb7f02ad28a7 36 {
fdalforno 22:f9fd5024f7ea 37 /* Check to see what characteristic was written, by handle */
fdalforno 22:f9fd5024f7ea 38 if(params->handle == writeChar.getValueHandle()) {
fdalforno 22:f9fd5024f7ea 39 /* toggle LED if only 1 byte is written */
fdalforno 22:f9fd5024f7ea 40 if(params->len == 1) {
fdalforno 22:f9fd5024f7ea 41 led = params->data[0];
fdalforno 22:f9fd5024f7ea 42 (params->data[0] == 0x00) ? printf("led on\n\r") : printf("led off\n\r"); // print led toggle
fdalforno 22:f9fd5024f7ea 43 }
fdalforno 22:f9fd5024f7ea 44 /* Print the data if more than 1 byte is written */
fdalforno 22:f9fd5024f7ea 45 else {
fdalforno 22:f9fd5024f7ea 46 printf("Data received: length = %d, data = 0x",params->len);
fdalforno 22:f9fd5024f7ea 47 for(int x=0; x < params->len; x++) {
fdalforno 22:f9fd5024f7ea 48 printf("%x", params->data[x]);
fdalforno 22:f9fd5024f7ea 49 }
fdalforno 22:f9fd5024f7ea 50 printf("\n\r");
fdalforno 22:f9fd5024f7ea 51 }
fdalforno 22:f9fd5024f7ea 52 /* Update the readChar with the value of writeChar */
fdalforno 22:f9fd5024f7ea 53 BLE::Instance(BLE::DEFAULT_INSTANCE).gattServer().write(readChar.getValueHandle(), params->data, params->len);
fdalforno 22:f9fd5024f7ea 54 }
screamer 0:eb7f02ad28a7 55 }
fdalforno 22:f9fd5024f7ea 56 /*
fdalforno 22:f9fd5024f7ea 57 * Initialization callback
fdalforno 22:f9fd5024f7ea 58 */
apalmieri 13:227a0149b677 59 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
screamer 0:eb7f02ad28a7 60 {
fdalforno 22:f9fd5024f7ea 61 BLE &ble = params->ble;
apalmieri 13:227a0149b677 62 ble_error_t error = params->error;
fdalforno 22:f9fd5024f7ea 63
apalmieri 13:227a0149b677 64 if (error != BLE_ERROR_NONE) {
apalmieri 13:227a0149b677 65 return;
apalmieri 13:227a0149b677 66 }
fdalforno 22:f9fd5024f7ea 67
screamer 0:eb7f02ad28a7 68 ble.gap().onDisconnection(disconnectionCallback);
fdalforno 22:f9fd5024f7ea 69 ble.gattServer().onDataWritten(writeCharCallback);
fdalforno 22:f9fd5024f7ea 70
fdalforno 22:f9fd5024f7ea 71 /* Setup advertising */
fdalforno 22:f9fd5024f7ea 72 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); // BLE only, no classic BT
fdalforno 22:f9fd5024f7ea 73 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); // advertising type
fdalforno 22:f9fd5024f7ea 74 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); // add name
fdalforno 22:f9fd5024f7ea 75 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); // UUID's broadcast in advertising packet
fdalforno 22:f9fd5024f7ea 76 ble.gap().setAdvertisingInterval(100); // 100ms.
fdalforno 22:f9fd5024f7ea 77
fdalforno 22:f9fd5024f7ea 78 /* Add our custom service */
fdalforno 22:f9fd5024f7ea 79 ble.addService(customService);
fdalforno 22:f9fd5024f7ea 80
fdalforno 22:f9fd5024f7ea 81 /* Start advertising */
screamer 0:eb7f02ad28a7 82 ble.gap().startAdvertising();
screamer 0:eb7f02ad28a7 83 }
fdalforno 22:f9fd5024f7ea 84
fdalforno 22:f9fd5024f7ea 85 /*
fdalforno 22:f9fd5024f7ea 86 * Main loop
fdalforno 22:f9fd5024f7ea 87 */
apalmieri 13:227a0149b677 88 int main(void)
apalmieri 13:227a0149b677 89 {
fdalforno 22:f9fd5024f7ea 90 /* initialize stuff */
fdalforno 22:f9fd5024f7ea 91 printf("\n\r********* Starting Main Loop *********\n\r");
fdalforno 22:f9fd5024f7ea 92
fdalforno 22:f9fd5024f7ea 93 BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE);
fdalforno 22:f9fd5024f7ea 94 ble.init(bleInitComplete);
fdalforno 22:f9fd5024f7ea 95
fdalforno 22:f9fd5024f7ea 96 /* SpinWait for initialization to complete. This is necessary because the
fdalforno 22:f9fd5024f7ea 97 * BLE object is used in the main loop below. */
fdalforno 22:f9fd5024f7ea 98 while (ble.hasInitialized() == false) { /* spin loop */ }
fdalforno 22:f9fd5024f7ea 99
fdalforno 22:f9fd5024f7ea 100 /* Infinite loop waiting for BLE interrupt events */
fdalforno 22:f9fd5024f7ea 101 while (true) {
fdalforno 22:f9fd5024f7ea 102 ble.waitForEvent(); /* Save power */
fdalforno 22:f9fd5024f7ea 103 }
fdalforno 22:f9fd5024f7ea 104 }