WIFI

WiFi.softAP()

功能:

开启AP模式,开启成功返回真

函数原型:

bool softAP(const char* ssid, const char* passphrase = NULL, int channel = 1, int ssid_hidden = 0, int max_connection = 4)

参数	描述	类型
ssid	AP名称 0~32个字节	const char*
passphrase	密码 8~63个字节 或 NULL	const char*
channel	信道	int
ssid_hidden	是否隐藏SSID 1:隐藏 0:不隐藏	int
max_conncetion	最大连接数量1~4	int

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
}
void loop() {
    if (WiFi.softAP("M5Stack_AP", "12345678", 1, 0, 4)) {
        M5.Lcd.println("WiFi AP is set up");
        M5.Lcd.println(WiFi.softAPIP());
    } else {
        M5.Lcd.println("WiFi AP is down");
    }
    delay(1000);
}

WiFi.softAPConfig()

功能:

设置AP的IP地址

函数原型:

bool softAPConfig(IPAddress local_ip, IPAddress gateway, IPAddress subnet)

参数	描述	类型
local_ip	默认本地IP 192.168.4.1	IPAddress
gateway	默认网关 192.168.4.1	IPAddress
subnet	默认子网掩码 255.255.255.0	IPAddress

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

IPAddress local_IP(192, 168, 4,22);  // Manually set the ip address of the open network. 手动设置的开启的网络的ip地址
IPAddress gateway(192, 168, 4,9);  // Manually set gateway IP address. 手动设置的网关IP地址
IPAddress subnet(255, 255, 255,0);  // Manually set subnet mask. 手动设置的子网掩码

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
}
void loop() {
    if (WiFi.softAP("M5Stack_AP", "12345678", 1, 0, 4)) {
        M5.Lcd.println("WiFi AP is set up");
        M5.Lcd.println(WiFi.softAPIP());
        delay(300);
        WiFi.softAPConfig(local_IP, gateway, subnet);
    } else {
        M5.Lcd.println("WiFi AP is down");
    }
    delay(1000);
}

WiFi.softAPdisconnect()

功能:

关闭当前AP,wifioff设置为true则还原网络设置

函数原型:

bool softAPdisconnect(bool wifioff = false)

参数	描述	类型
wifioff	还原设置	bool

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
}
void loop() {
    if (WiFi.softAP("M5Stack_AP", "12345678", 1, 0, 4)) {
        M5.Lcd.println("WiFi AP is set up");
        M5.Lcd.println(WiFi.softAPIP());
        delay(1000);
        if (WiFi.softAPdisconnect()) {  //Turn off the current AP and restore the network settings.  关闭当前AP,并还原网络设置
            M5.Lcd.println("WiFi AP is closed");
            delay(5000);
        }
    } else {
        M5.Lcd.println("WiFi AP is down");
    }
    delay(1000);
}

WiFi.softAPgetStationNum()

功能:

返回连接到AP的客户端数量

函数原型:

uint8_t softAPgetStationNum()

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
}
void loop() {
    if (WiFi.softAP("M5Stack_AP", "12345678", 1, 0, 4)) {
        M5.Lcd.println("WiFi AP is set up");
        M5.Lcd.printf("Number of AP connections:%d",WiFi.softAPgetStationNum());
    } else {
        M5.Lcd.println("WiFi AP is down");
    }
    delay(1000);
}

WiFi.softAPIP()

功能:

返回当前AP的IP地址

函数原型:

IPAddress softAPIP()

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
}
void loop() {
    if (WiFi.softAP("M5Stack_AP", "12345678", 1, 0, 4)) {
        M5.Lcd.println("WiFi AP is set up");
        M5.Lcd.println(WiFi.softAPIP());
    } else {
        M5.Lcd.println("WiFi AP is down");
    }
    delay(1000);
}

WiFi.softAPsetHostname()

功能:

设置主机名称,成功返回真

函数原型:

bool softAPsetHostname(const char * hostname)

参数	描述	类型
hostname	主机名称	const char*

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
}
void loop() {
    if (WiFi.softAP("M5Stack_AP", "12345678", 1, 0, 4)) {
        M5.Lcd.println("WiFi AP is set up");
        M5.Lcd.printf("Host name:%s\n", WiFi.softAPgetHostname());
        delay(1000);
        WiFi.softAPsetHostname("M5_AP");
        M5.Lcd.printf("After Host name:%s\n", WiFi.softAPgetHostname());
    } else {
        M5.Lcd.println("WiFi AP is down");
    }
    delay(1000);
}

WiFi.softAPgetHostname()

功能:

获得主机名称

函数原型:

const char * softAPgetHostname()

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
}
void loop() {
    if (WiFi.softAP("M5Stack_AP", "12345678", 1, 0, 4)) {
        M5.Lcd.println("WiFi AP is set up");
        M5.Lcd.printf("Host name:%s", WiFi.softAPgetHostname());
    } else {
        M5.Lcd.println("WiFi AP is down");
    }
    delay(1000);
}

WiFi.softAPmacAddress()

功能:

返回主机 MAC 地址

函数原型:

String softAPmacAddress(void)

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
}
void loop() {
    if (WiFi.softAP("M5Stack_AP", "12345678", 1, 0, 4)) {
        M5.Lcd.println("WiFi AP is set up");
        M5.Lcd.print("MAC:");
        M5.Lcd.println(WiFi.softAPmacAddress());
    } else {
        M5.Lcd.println("WiFi AP is down");
    }
    delay(1000);
}

WiFi.begin()

功能:

接入指定网络(如果connect参数为真则接入网络;如果参数为假则只保存设置,返回wifi状态)

函数原型:

wl_status_t begin(const char* ssid, const char *passphrase = NULL, int32_t channel = 0, const uint8_t* bssid = NULL, bool connect = true)

参数	描述	类型
ssid	网络热点名称	const char*
passphrase	密码(可选)	const char*
channel	热点通道号(可选)	int32_t
bssid	热点的mac地址(可选)	const uint8_t*
connect	建立连接(可选)	bool

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

// Fill in the hotspot name and password you are connected to.
// 填写你所连接的热点名称和密码
const char *ssid     = "yourNetwork";
const char *password = "'secretPassword";

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        M5.Lcd.print(".");
    }
    M5.Lcd.println("\nWiFi connected");
}
void loop() {}

WiFi.config()

功能:

配置网络地址

函数原型:

bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = (uint32_t)0x00000000, IPAddress dns2 = (uint32_t)0x00000000)

参数	描述	类型
local_ip	设置IP	IPAddress
gateway	设置网关	IPAddress
subnet	设置子网掩码	IPAddress
dns1	设置DNS1	IPAddress
dns2	设置DNS2	IPAddress

WiFi.disconnect()

功能:

断开网络连接,若wifioff为true则还将还原网络设置,若eraseap为true则将清除保存于flash中的网络参数.

函数原型:

bool disconnect(bool wifioff = false, bool eraseap = false)

参数	描述	类型
wifioff	还原设置	bool
eraseap	flash清除AP设置	bool

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

// Fill in the hotspot name and password you are connected to.
// 填写你所连接的热点名称和密码
const char *ssid     = "yourNetwork";
const char *password = "'secretPassword";

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        M5.Lcd.print(".");
    }
    M5.Lcd.println("\nWiFi connected");
    if(WiFi.disconnect(true, true)) {
        M5.Lcd.println("WiFi disconnected");
    }
}
void loop() {}

WiFi.isConnected()

功能:

返回网络连接状态

函数原型:

bool isConnected()

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

// Fill in the hotspot name and password you are connected to.
// 填写你所连接的热点名称和密码
const char *ssid     = "yourNetwork";
const char *password = "'secretPassword";

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        M5.Lcd.print(".");
    }
    M5.Lcd.println("\nWiFi connected");
    M5.Lcd.print(WiFi.isConnected());
}
void loop() {}

WiFi.setAutoReconnect()

功能:

设置自动重连.

函数原型:

bool setAutoReconnect(bool autoReconnect)

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

// Fill in the hotspot name and password you are connected to.
// 填写你所连接的热点名称和密码
const char *ssid     = "yourNetwork";
const char *password = "'secretPassword";

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    if(WiFi.setAutoReconnect(true)) {
        M5.Lcd.println("Whether it has been set successfully to automatically reconnect");
    }
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        M5.Lcd.print(".");
    }
    M5.Lcd.println("\nWiFi connected");
}
void loop() {}

WiFi.getAutoReconnect()

功能:

返回是否重新连接

函数原型:

bool getAutoReconnect()

WiFi.localIP()

功能:

返回本地IP地址

函数原型:

IPAddress localIP()

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

// Fill in the hotspot name and password you are connected to.
// 填写你所连接的热点名称和密码
const char *ssid     = "yourNetwork";
const char *password = "'secretPassword";

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        M5.Lcd.print(".");
    }
    M5.Lcd.println("\nWiFi connected");
    M5.Lcd.print("IP:");
    M5.Lcd.print(WiFi.localIP());
}
void loop() {}

WiFi.subnetMask()

功能:

返回子网掩码

函数原型:

IPAddress subnetMask()

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

// Fill in the hotspot name and password you are connected to.
// 填写你所连接的热点名称和密码
const char *ssid     = "yourNetwork";
const char *password = "'secretPassword";

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        M5.Lcd.print(".");
    }
    M5.Lcd.println("\nWiFi connected");
    M5.Lcd.print("subnetMask:");
    M5.Lcd.print(WiFi.subnetMask());
}

void loop() {}

WiFi.gatewayIP()

功能:

返回网关地址

函数原型:

IPAddress gatewayIP()

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

// Fill in the hotspot name and password you are connected to.
// 填写你所连接的热点名称和密码
const char *ssid     = "yourNetwork";
const char *password = "'secretPassword";

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        M5.Lcd.print(".");
    }
    M5.Lcd.println("\nWiFi connected");
    M5.Lcd.print("gatewayIP:");
    M5.Lcd.print(WiFi.gatewayIP());
}

void loop() {}

WiFi.dnsIP()

功能:

返回DNS地址

函数原型:

IPAddress dnsIP(uint8_t dns_no = 0)

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

// Fill in the hotspot name and password you are connected to.
// 填写你所连接的热点名称和密码
const char *ssid     = "yourNetwork";
const char *password = "'secretPassword";

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        M5.Lcd.print(".");
    }
    M5.Lcd.println("\nWiFi connected");
    M5.Lcd.print("dnsIP:");
    M5.Lcd.print(WiFi.dnsIP());
}

void loop() {}

WiFi.macAddress()

功能:

返回mac地址

函数原型:

String macAddress()

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

// Fill in the hotspot name and password you are connected to.
// 填写你所连接的热点名称和密码
const char *ssid     = "yourNetwork";
const char *password = "'secretPassword";

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        M5.Lcd.print(".");
    }
    M5.Lcd.println("\nWiFi connected");
    M5.Lcd.print("macAddress:");
    M5.Lcd.print(WiFi.macAddress());
}

void loop() {}

WiFi.getHostname()

功能:

主机名称

函数原型:

const char * getHostname()

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

// Fill in the hotspot name and password you are connected to.
// 填写你所连接的热点名称和密码
const char *ssid     = "yourNetwork";
const char *password = "'secretPassword";

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        M5.Lcd.print(".");
    }
    M5.Lcd.println("\nWiFi connected");
    M5.Lcd.print("getHostname:");
    M5.Lcd.print(WiFi.getHostname());
}

void loop() {}

WiFi.status()

功能:

返回WiFi状态

函数原型:

wl_status_t status()

返回值

值	描述
255	WL_NO_SHIELD 检查WiFi Shield
0	WL_IDLE_STATUS 正在WiFi工作模式间切换
1	WL_NO_SSID_AVAIL 无法访问设置的SSID网络
2	WL_SCAN_COMPLETED 扫描完成
3	WL_CONNECTED 连接成功
4	WL_CONNECT_FAILED 连接失败
5	WL_CONNECTION_LOST 丢失连接
6	WL_DISCONNECTED 断开连接

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

// Fill in the hotspot name and password you are connected to.
// 填写你所连接的热点名称和密码
const char *ssid     = "yourNetwork";
const char *password = "'secretPassword";

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        M5.Lcd.print(".");
    }
    M5.Lcd.println("\nWiFi connected");
}
void loop() {}

WiFi.scanNetworks()

功能:

扫描WiFi网络(默认状态下为阻塞模式)

函数原型:

int16_t scanNetworks(bool async = false, bool show_hidden = false, bool passive = false, uint32_t max_ms_per_chan = 300)

参数	类型	描述
async	bool	异步扫描 Wifi数量(非阻塞),值为true时启动
show_hidden	bool	是否扫描隐藏网络
passive	bool	快速扫描
max_ms_per_chan	uint32_t	通道扫描时间

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    M5.Lcd.println("Scanning...");
    WiFi.scanNetworks();
    M5.Lcd.printf("wifi number:%d\n", WiFi.scanComplete());
}
void loop() {}

WiFi.scanComplete()

功能:

异步模式下获取扫描网络.返回值-1表示扫描未完成.返回值为-2表示扫描失败.

函数原型:

int16_t scanComplete()

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    WiFi.scanNetworks(true);
    M5.Lcd.printf("Scanning...");
    while (WiFi.scanComplete() == WIFI_SCAN_RUNNING ||
           WiFi.scanComplete() == WIFI_SCAN_FAILED) {
        M5.Lcd.printf(".");
        delay(500);
    }
    M5.Lcd.printf("\nWiFi number:%d\n", WiFi.scanComplete());
}
void loop() {}

WiFi.SSID()

功能:

返回扫描到的网络.

函数原型:

String SSID(uint8_t networkItem)

参数	类型	描述
networkItem	uint8_t	SSID名称

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    M5.Lcd.println("Scanning...");
    WiFi.scanNetworks();
    M5.Lcd.printf("wifi number:%d\n", WiFi.scanComplete());
    for (int i = 1; i < WiFi.scanComplete(); i++) {
        M5.Lcd.printf("%d:%s\n", i, WiFi.SSID(i).c_str());
    }
}
void loop() {}

WiFi.scanDelete()

功能:

从内存中删除扫描结果

函数原型:

void scanDelete()

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    M5.Lcd.println("Scanning...");
    WiFi.scanNetworks();
    M5.Lcd.println("Scan complete");
    WiFi.scanDelete();
    M5.Lcd.println("Scan result deleted from memory");
}
void loop() {}

WiFi.encryptionType()

功能:

返回扫描到的加密网络

函数原型:

wifi_auth_mode_t encryptionType(uint8_t networkItem)

函数参数	类型	描述
networkItem	uint8_t	SSID名称

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    M5.Lcd.println("Scanning...");
    WiFi.scanNetworks();
    M5.Lcd.printf("wifi number:%d\n", WiFi.scanComplete());
    for (int i = 1; i < WiFi.scanComplete(); i++) {  //开始逐个打印扫描到的
        M5.Lcd.printf("%d:", i);
        M5.Lcd.print(WiFi.SSID(i));
        M5.Lcd.print(",\t");
        M5.Lcd.println(
            (WiFi.encryptionType(i) == WIFI_AUTH_OPEN) ? "open" : "encryption");
        delay(10);
    }
}

void loop() {}

WiFi.RSSI()

功能:

返回扫描到的RSSI强度

函数原型:

int32_t RSSI(uint8_t networkItem)

参数	类型	描述
networkItem	uint8_t	RSSI item

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    M5.Lcd.println("Scanning...");
    WiFi.scanNetworks();
    M5.Lcd.printf("wifi number:%d\n", WiFi.scanComplete());
    for (int i = 1; i < WiFi.scanComplete(); i++) {
        M5.Lcd.printf("%d:%s", i, WiFi.SSID(i).c_str());
        M5.Lcd.printf(" , %d\n", WiFi.RSSI(i));
    }
}
void loop() {}

WiFi.channel()

功能:

返回扫描到的网络通道号

函数原型:

int32_t channel(uint8_t networkItem)

参数	类型	描述
networkItem	uint8_t	channel item

使用示例:

#include <M5Stack.h>
#include <WIFI.h>

void setup() {
    M5.begin();
    M5.Power.begin();
    M5.Lcd.setTextSize(2);
    M5.Lcd.println("Scanning...");
    WiFi.scanNetworks();
    M5.Lcd.printf("wifi number:%d\n", WiFi.scanComplete());
    for (int i = 1; i < WiFi.scanComplete(); i++) {
        M5.Lcd.printf("%d:%s", i, WiFi.SSID(i).c_str());
        M5.Lcd.printf(" , %d\n", WiFi.channel(i));
    }
}
void loop() {}