ESP-IDF的例程我实在没琢磨透
我需要往FF10service的FF11写数据 从FF12读数据
最好不用event，不知道可不可行
一直scan 串口收到指令后开始连接 发数据 随后读数据返回串口
有没有同学可以不用回调读写呢 回调不是很懂 我也试过get不同的handle处理 失败了
参考：https://blog.csdn.net/weixin_41583631/article/details/108075961
参考这个：
https://github.com/espressif/arduino-esp32/blob/master/libraries/BLE/src/BLEClient.h
https://randomnerdtutorials.com/esp32-ble-server-client/
参考这个：
/*
* BLEDevice.h
*
* Created on: Mar 22, 2017
* Author: kolban
*/
#ifndef MAIN_BLEDEVICE_H_
#define MAIN_BLEDEVICE_H_
#include "sdkconfig.h"
#if defined(CONFIG_BLUEDROID_ENABLED)
#include <esp_gattc_api.h>
#include <string.h>
#include <map>
#include <string>
//#include "BLEExceptions.h"
#include "BLERemoteService.h"
#include "BLEService.h"
#include "BLEAddress.h"
#include "BLEAdvertisedDevice.h"
class BLERemoteService;
class BLEClientCallbacks;
class BLEAdvertisedDevice;
/**
* @brief A model of a %BLE client.
*/
class BLEClient {
public:
BLEClient();
~BLEClient();
bool connect(BLEAdvertisedDevice* device);
bool connect(BLEAddress address, esp_ble_addr_type_t type = BLE_ADDR_TYPE_PUBLIC); // Connect to the remote BLE Server
void disconnect(); // Disconnect from the remote BLE Server
BLEAddress getPeerAddress(); // Get the address of the remote BLE Server
int getRssi(); // Get the RSSI of the remote BLE Server
std::map<std::string, BLERemoteService*>* getServices(); // Get a map of the services offered by the remote BLE Server
BLERemoteService* getService(const char* uuid); // Get a reference to a specified service offered by the remote BLE server.
BLERemoteService* getService(BLEUUID uuid); // Get a reference to a specified service offered by the remote BLE server.
std::string getValue(BLEUUID serviceUUID, BLEUUID characteristicUUID); // Get the value of a given characteristic at a given service.
void handleGAPEvent(
esp_gap_ble_cb_event_t event,
esp_ble_gap_cb_param_t* param);
bool isConnected(); // Return true if we are connected.
void setClientCallbacks(BLEClientCallbacks *pClientCallbacks);
void setValue(BLEUUID serviceUUID, BLEUUID characteristicUUID, std::string value); // Set the value of a given characteristic at a given service.
std::string toString(); // Return a string representation of this client.
uint16_t getConnId();
esp_gatt_if_t getGattcIf();
uint16_t getMTU();
bool setMTU(uint16_t mtu);
uint16_t m_appId;
private:
friend class BLEDevice;
friend class BLERemoteService;
friend class BLERemoteCharacteristic;
friend class BLERemoteDescriptor;
void gattClientEventHandler(
esp_gattc_cb_event_t event,
esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t* param);
BLEAddress m_peerAddress = BLEAddress((uint8_t*)"\0\0\0\0\0\0"); // The BD address of the remote server.
uint16_t m_conn_id;
// int m_deviceType;
esp_gatt_if_t m_gattc_if;
bool m_haveServices = false; // Have we previously obtain the set of services from the remote server.
bool m_isConnected = false; // Are we currently connected.
BLEClientCallbacks* m_pClientCallbacks;
FreeRTOS::Semaphore m_semaphoreRegEvt = FreeRTOS::Semaphore("RegEvt");
FreeRTOS::Semaphore m_semaphoreOpenEvt = FreeRTOS::Semaphore("OpenEvt");
FreeRTOS::Semaphore m_semaphoreSearchCmplEvt = FreeRTOS::Semaphore("SearchCmplEvt");
FreeRTOS::Semaphore m_semaphoreRssiCmplEvt = FreeRTOS::Semaphore("RssiCmplEvt");
std::map<std::string, BLERemoteService*> m_servicesMap;
std::map<BLERemoteService*, uint16_t> m_servicesMapByInstID;
void clearServices(); // Clear any existing services.
uint16_t m_mtu = 23;
}; // class BLEDevice
/**
* @brief Callbacks associated with a %BLE client.
*/
class BLEClientCallbacks {
public:
virtual ~BLEClientCallbacks() {};
virtual void onConnect(BLEClient *pClient) = 0;
virtual void onDisconnect(BLEClient *pClient) = 0;
};
#endif // CONFIG_BLUEDROID_ENABLED
#endif /* MAIN_BLEDEVICE_H_ */
把问题描述一下，如果有日志贴出日志
可以具体点吗
感觉你没说明白
什么问题？
你现在的问题是什么？是整个项目都不会还是有哪里不通？或者是写不进去？？
参考这个：
https://github.com/espressif/arduino-esp32/blob/master/libraries/BLE/src/BLEClient.h