Arduino ESP32 WIFI &蓝牙模式触控按键切换_arduino esp32 ble stop

Arduino ESP32 WIFI &蓝牙模式触控按键切换

• 相关篇《Arduino ESP32自带触摸传感器功能测试》
• 《ESP32电容式触摸传感器引脚实例》
  

ESP32触摸通道

**
 * 功能：使用ESP32的触摸按键中断
 * 触摸传感器通道 管脚
          T0  GPIO4
          T1  GPIO0
          T2  GPIO2
          T3  MTDO
          T4  MTCK
          T5  MTDI
          T6  MTMS
          T7  GPIO27
          T8  32K_XN
          T9  32K_XP
 */
1
2
3
4
5
6
7
8
9
10
11
12
13
14

实例代码

// 演示如何在wifi和蓝牙模式之间切换，或者同时使用
// 触摸按键设置的引脚GPIO 4-->D4 

#include "WiFi.h"
#define STA_SSID "MERCURY_D268G"
#define STA_PASS "pba5ayzk"
#define AP_SSID  "Esp32"
const int touchPin = 4; 
const int ledPin = 2;
const uint8_t threshold = 20;
enum { STEP_BTON, STEP_BTOFF, STEP_STA, STEP_AP, STEP_AP_STA, STEP_OFF, STEP_BT_STA, STEP_END };  //枚举，即别名   
//没有指定值的枚举元素，其值为前一元素加 1。也就说 STEP_BTON 的值为 0，STEP_BTOFF 的值为 1...
void setup() {
    Serial.begin(115200);
  //  pinMode(touchPin, INPUT_PULLUP);  //触摸引脚4，输入模式
    pinMode (ledPin, OUTPUT);
    WiFi.onEvent(WiFiEvent);
    Serial.print("ESP32 SDK: ");
    Serial.println(ESP.getSdkVersion());
    Serial.println("按下按键切换至下一模式");
}

void loop() {
 
    uint8_t touchValue =  touchRead(touchPin);    //unsigned char
    if(touchValue < threshold){       //如果感应值大于阈值，就触发
        onButton();
    }
}

void onButton(){
  static uint32_t step = STEP_BTON;
  switch(step){
    case STEP_BTON://BT only
      Serial.println("** 启动蓝牙");
      btStart();
      digitalWrite(ledPin,!digitalRead(ledPin));
    break;
    
    case STEP_BTOFF://ALL Off
      Serial.println("** 关闭蓝牙");
      btStop();
      digitalWrite(ledPin,!digitalRead(ledPin));
    break;
    
    case STEP_STA://STA Only
      Serial.println("** 启动wifi站点模式");
      WiFi.begin(STA_SSID, STA_PASS);       //连接wifi
      digitalWrite(ledPin,!digitalRead(ledPin));
    break;
    
    case STEP_AP://AP Only
      Serial.println("** 关闭wifi站点模式");
      WiFi.mode(WIFI_AP);
      Serial.println("** 开启AP模式");
      WiFi.softAP(AP_SSID);                 //初始化AP，wifi名字为AP_SSID
      digitalWrite(ledPin,!digitalRead(ledPin));
    break;
    
    case STEP_AP_STA://AP+STA
      Serial.println("** 启动wifi站点模式");
      WiFi.begin(STA_SSID, STA_PASS);
      digitalWrite(ledPin,!digitalRead(ledPin));
    break;
    
    case STEP_OFF://All Off
      Serial.println("** wifi关闭");
      WiFi.mode(WIFI_OFF);
      digitalWrite(ledPin,!digitalRead(ledPin));
    break;
    
    case STEP_BT_STA://BT+STA
      Serial.println("** 启动 wifi站点模式+蓝牙");
      WiFi.begin(STA_SSID, STA_PASS);
      btStart();
      digitalWrite(ledPin,!digitalRead(ledPin));
    break;
    
    case STEP_END://All Off
      Serial.println("** 关闭 wifi站点模式+蓝牙");
      WiFi.mode(WIFI_OFF);
      btStop();
      digitalWrite(ledPin,!digitalRead(ledPin));
    break;
    
    default:
    break;
  }
  if(step == STEP_END){
    step = STEP_BTON;
  } else {
    step++;
  }
  
  //抖动消除
  delay(100);
}

void WiFiEvent(WiFiEvent_t event){
    switch(event) {
        case SYSTEM_EVENT_AP_START:
            Serial.println("AP Started");
            WiFi.softAPsetHostname(AP_SSID);
            break;
        case SYSTEM_EVENT_AP_STOP:
            Serial.println("AP Stopped");
            break;
        case SYSTEM_EVENT_STA_START:
            Serial.println("STA Started");
            WiFi.setHostname(AP_SSID);
            break;
        case SYSTEM_EVENT_STA_CONNECTED:
            Serial.println("STA Connected");
            WiFi.enableIpV6();
            break;
        case SYSTEM_EVENT_AP_STA_GOT_IP6:
            Serial.print("STA IPv6: ");
            Serial.println(WiFi.localIPv6());
            break;
        case SYSTEM_EVENT_STA_GOT_IP:
            Serial.print("STA IPv4: ");
            Serial.println(WiFi.localIP());
            break;
        case SYSTEM_EVENT_STA_DISCONNECTED:
            Serial.println("STA Disconnected");
            break;
        case SYSTEM_EVENT_STA_STOP:
            Serial.println("STA Stopped");
            break;
        default:
            break;
    }
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133

• 串口信息