mirror of
https://github.com/h2zero/esp-nimble-cpp.git
synced 2024-11-22 13:10:55 +01:00
38e764d157
* Adds parameters `asyncConnect` and `exchangeMTU` to `NimBLEClient::connect`, default values work as the original connect method. * * `asyncConnect`; if true, will send the connect command and return immediately with a true value for successfully sending the command, else false. * * `exchangeMTU`; if true will send the exchange MTU command upon connection, otherwise not and the application can choose to do this later via the `exchangeMTU` method. * Adds `onMTUChange` callback to `NimBLEClientCallbacks` * Add `NimBLEDevice::getConnectedClients()` which returns a vector of pointers to the currently connected client instances. * Calling `NimBLEClient::connect` will no longer cancel already in progress connections.
83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
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/**
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* NimBLE_Async_client Demo:
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*
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* Demonstrates asynchronous client operations.
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*
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* Created: on November 4, 2024
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* Author: H2zero
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*
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*/
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#include <NimBLEDevice.h>
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static constexpr uint32_t scanTimeMs = 5 * 1000;
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class ClientCallbacks : public NimBLEClientCallbacks {
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void onConnect(NimBLEClient* pClient) {
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printf("Connected to: %s\n", pClient->getPeerAddress().toString().c_str());
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}
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void onDisconnect(NimBLEClient* pClient, int reason) {
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printf("%s Disconnected, reason = %d - Starting scan\n", pClient->getPeerAddress().toString().c_str(), reason);
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NimBLEDevice::getScan()->start(scanTimeMs);
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}
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} clientCB;
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class scanCallbacks : public NimBLEScanCallbacks {
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void onResult(NimBLEAdvertisedDevice* advertisedDevice) {
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printf("Advertised Device found: %s\n", advertisedDevice->toString().c_str());
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if (advertisedDevice->haveName() && advertisedDevice->getName() == "NimBLE-Server") {
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printf("Found Our Device\n");
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auto pClient = NimBLEDevice::getDisconnectedClient();
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if (!pClient) {
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pClient = NimBLEDevice::createClient(advertisedDevice->getAddress());
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if (!pClient) {
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printf("Failed to create client\n");
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return;
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}
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}
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pClient->setClientCallbacks(&clientCB, false);
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if (!pClient->connect(true, true, false)) { // delete attributes, async connect, no MTU exchange
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NimBLEDevice::deleteClient(pClient);
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printf("Failed to connect\n");
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return;
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}
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}
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}
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void onScanEnd(NimBLEScanResults results) {
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printf("Scan Ended\n");
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NimBLEDevice::getScan()->start(scanTimeMs);
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}
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};
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extern "C" void app_main(void) {
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printf("Starting NimBLE Async Client\n");
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NimBLEDevice::init("");
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NimBLEDevice::setPower(3); /** +3db */
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NimBLEScan* pScan = NimBLEDevice::getScan();
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pScan->setScanCallbacks(new scanCallbacks());
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pScan->setInterval(45);
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pScan->setWindow(15);
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pScan->setActiveScan(true);
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pScan->start(scanTimeMs);
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for (;;) {
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vTaskDelay(pdMS_TO_TICKS(1000));
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auto pClients = NimBLEDevice::getConnectedClients();
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if (!pClients.size()) {
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continue;
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}
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for (auto& pClient : pClients) {
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printf("%s\n", pClient->toString().c_str());
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NimBLEDevice::deleteClient(pClient);
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}
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NimBLEDevice::getScan()->start(scanTimeMs);
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}
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}
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