WiFi.config() - 版本历史

2016年4月20日 (三) 00:55 Allblue

2016-04-20T00:55:43Z

2016年4月20日 (三) 00:55 Allblue

2016-04-20T00:55:11Z

Allblue：以“:WiFi {| border="0" cellpadding="20" width="100%" |- |width="100%" valign="top" align="left"| '''config()''' ...”为内容创建页面

2016-04-20T00:42:14Z

以“:WiFi {| border="0" cellpadding="20" width="100%" |- |width="100%" valign="top" align="left"| '''config()''' ...”为内容创建页面

新页面

:[[WiFi库|WiFi]]

{| border="0" cellpadding="20" width="100%"
|-
|width="100%" valign="top" align="left"|
'''config()'''

'''描述'''

WiFi.config() allows you to configure a static IP address as well as change the DNS, gateway, and subnet addresses on the WiFi shield.

Unlike WiFi.begin() which automatically configures the WiFi shield to use DHCP, WiFi.config() allows you to manually set the network address of the shield.

Calling WiFi.config() before WiFi.begin() forces begin() to configure the WiFi shield with the network addresses specified in config().

You can call WiFi.config() after WiFi.begin(), but the shield will initialize with begin() in the default DHCP mode. Once the config() method is called, it will change the network address as requested.

'''语法'''

WiFi.config(ip);

WiFi.config(ip, dns);

WiFi.config(ip, dns, gateway);

WiFi.config(ip, dns, gateway, subnet);

'''参数'''

ip: the IP address of the device (array of 4 bytes)

dns: the address for a DNS server.

gateway: the IP address of the network gateway (array of 4 bytes). optional: defaults to the device IP address with the last octet set to 1

subnet: the subnet mask of the network (array of 4 bytes). optional: defaults to 255.255.255.0

'''返回值'''

Nothing

'''示例'''

This example shows how to set the static IP address, 192.168.0.177, of the LAN network to the WiFi shield:

<pre style="color:dimgray">
#include <SPI.h>
#include <WiFi.h>

// the IP address for the shield:
IPAddress ip(192, 168, 0, 177);

char ssid[] = "yourNetwork"; // your network SSID (name)
char pass[] = "secretPassword"; // your network password (use for WPA, or use as key for WEP)

int status = WL_IDLE_STATUS;

void setup()
{
// Initialize serial and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}

// check for the presence of the shield:
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
while(true); // don't continue
}

WiFi.config(ip);

// attempt to connect to Wifi network:
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
status = WiFi.begin(ssid, pass);

// wait 10 seconds for connection:
delay(10000);
}

// print your WiFi shield's IP address:
Serial.print("IP Address: ");
Serial.println(WiFi.localIP());
}

void loop () {}
</pre>

|}

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@@ 第35行： / 第35行： @@
 <font color="orange" size="+1">'''参数'''</font>
-ip: the IP address of the device (array of 4 bytes)
+'''ip''': the IP address of the device (array of 4 bytes)
-dns: the address for a DNS server.
+'''dns''': the address for a DNS server.
-gateway: the IP address of the network gateway (array of 4 bytes). optional: defaults to the device IP address with the last octet set to 1
+'''gateway''': the IP address of the network gateway (array of 4 bytes). optional: defaults to the device IP address with the last octet set to 1
-subnet: the subnet mask of the network (array of 4 bytes). optional: defaults to 255.255.255.0
+'''subnet''': the subnet mask of the network (array of 4 bytes). optional: defaults to 255.255.255.0

@@ 第5行： / 第5行： @@
 |width="100%" valign="top" align="left"|
 <font color="olivedrab" size="+3">'''config()'''</font>
 <font color="orange" size="+1">'''描述'''</font>
-Unlike WiFi.begin() which automatically configures the WiFi shield to use DHCP, WiFi.config() allows you to manually set the network address of the shield.
+<span style="background:lightblue">WiFi.config()</span> allows you to configure a static IP address as well as change the DNS, gateway, and subnet addresses on the WiFi shield.
-Calling WiFi.config() before WiFi.begin() forces begin() to configure the WiFi shield with the network addresses specified in config().
+You can call <span style="background:lightblue">WiFi.config()</span> after <span style="background:lightblue">WiFi.begin()</span>, but the shield will initialize with <span style="background:lightblue">begin()</span> in the default DHCP mode. Once the <span style="background:lightblue">config()</span> method is called, it will change the network address as requested.
 <font color="orange" size="+1">'''语法'''</font>