嗨，我正在使用arduino uno和wifi盾牌。我正在尝试使用wifi屏蔽通过网络服务器连接到伺服电机。说实话，我真的不知道我在做什么。该代码能够控制伺服电机一次，整个系统关闭。 有人可以查看我的代码，看看有什么问题吗？如果我能希望代码能够多次控制伺服而不停止。
#include <SPI.h>
#include <WiFi.h>
#include <Servo.h>
char ssid[] = "wifi"; // your network SSID (name)
char pass[] = "asdfghjkl"; // your network password
int keyIndex = 0;
// your network key Index number (needed only for WEP)
Servo myservo;
int status = WL_IDLE_STATUS;
WiFiServer server(80);
void setup() {
Serial.begin(9600); // initialize serial communication
myservo.attach(9);
// check for the presence of the shield:
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
while (true); // don't continue
}
String fv = WiFi.firmwareVersion();
if (fv != "1.1.0") {
Serial.println("Please upgrade the firmware");
}
// attempt to connect to Wifi network:
while (status != WL_CONNECTED) {
Serial.print("Attempting to connect to Network named: ");
Serial.println(ssid); // print the network name (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(1000);
}
server.begin(); // start the web server on port 80
printWifiStatus(); // you're connected now, so print out the status
}
void loop() {
WiFiClient client = server.available(); // listen for incoming clients
if (client) { // if you get a client,
Serial.println("new client"); // print a message out the serial port
String currentLine = ""; // make a String to hold incoming data from the client
while (client.connected()) { // loop while the client's connected
if (client.available()) { // if there's bytes to read from the client,
char c = client.read(); // read a byte, then
Serial.write(c); // print it out the serial monitor
if (c == '\n') { // if the byte is a newline character
// if the current line is blank, you got two newline characters in a row.
// that's the end of the client HTTP request, so send a response:
if (currentLine.length() == 0) {
// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
// and a content-type so the client knows what's coming, then a blank line:
client.println("HTTP/1.1 200 OK");
client.println("Content-type:text/html");
client.println();
// the content of the HTTP response follows the header:
client.print("Click <a href=\"/H\">here</a> turn the Open the door <br>");
client.print("Click <a href=\"/L\">here</a> turn the Close the door <br>");
// The HTTP response ends with another blank line:
client.println();
// break out of the while loop:
break;
} else { // if you got a newline, then clear currentLine:
currentLine = "";
}
} else if (c != '\r') { // if you got anything else but a carriage return character,
currentLine += c; // add it to the end of the currentLine
}
// Check to see if the client request was "GET /H" or "GET /L":
if (currentLine.endsWith("GET /H")) {
// scale it to use it with the servo (value between 0 and 180)
myservo.write(800); // sets the servo position according to the scaled value
delay(15); // GET /H turns the LED on
}
if (currentLine.endsWith("GET /L")) {
// scale it to use it with the servo (value between 0 and 180)
myservo.write(2500); // sets the servo position according to the scaled value
delay(15); // GET /L turns the LED off
}
}
}
}
}
void printWifiStatus() {
// print the SSID of the network you're attached to:
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your WiFi shield's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength:
long rssi = WiFi.RSSI();
Serial.print("signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
// print where to go in a browser:
Serial.print("To see this page in action, open a browser to http://");
Serial.println(ip);
}