Freenove ESP32 User Manual

Need support?  support@freenove.com
126
Chapter 13 BLE
www.freenove.com █
BLE Bluetooth initialization function.
6
bleSetup();
BLE Bluetooth send data function.
11
bleSend(buf);
Bluetooth low energy data receiving function.
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
void onBleReceived(BLECharacteristic *pCharacteristic) {
std::string rxValue = pCharacteristic->getValue();
static String bleInputString = "";
Serial.print("onBleReceived: ");
if (rxValue.length() > 0) {
for (int i = 0; i < rxValue.length(); i++) {
bleInputString += rxValue[i];
if (rxValue[i] == '\n') {
Serial.println(bleInputString);
/*You can do something with the information you receive*/
bleInputString = ""; //Clear bleInputString.
}
}
}
}
BluetoothService.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
#ifndef __BLUETOOTHSERVICE_H
#define __BLUETOOTHSERVICE_H
#include "Arduino.h"
#include <BLEDevice.h>
#include <BLEServer.h>
#include <BLEUtils.h>
#include <BLE2902.h>
class BLEServer;
class BLECharacteristic;
class BLEServerCallbacks;
void bleSetup();
void bleStop();
void bleSend(std::string msg);
extern void onBleReceived(BLECharacteristic *pCharacteristic);
#endif

Freenove ESP32 Specifications

General

Brand	Freenove
Model	ESP32
Category	Computer Hardware
Language	English