Question

这是我可以控制伺服电机的项目代码。我曾尝试使用深度睡眠，因为我会使用电池。但是看着我的串口显示器，我收到了这条消息，我无法访问我的网络服务器。

ERR_CONNECTION_TIMED_OUT

连接路易斯

WiFi已连接   Web服务器已启动   您可以在此处连接到服务器：http://192.168.0.102   进入深度睡眠20秒   {1

WiFi已连接   Web服务器已启动   您可以在此处连接到服务器：http://192.168.0.102   进入深度睡眠20秒   {1

WiFi已连接   Web服务器已启动   您可以在此处连接到服务器：http://192.168.0.102   进入深度睡眠20秒   {1

我的代码出了什么问题？

#include "ESP8266WiFi.h" // WiFi Library
#include <Wire.h>
#include <Servo.h>  // Include the Servo library

const char* ssid = "Louise"; // Name of WiFi Network
const char* password = "passme"; // Password of WiFi Network
int firstrun = 0; // Check if system was just powered on
int buttonpressed = 5; // To hold which button was pressed on Web Page
int servoPin = 3;  // Declare the Servo pin
Servo Servo1;  // Create a servo object
WiFiServer server(80); // Define Web Server Port

void setup() {
  Serial.begin(115200);
  delay(10);
  Servo1.attach(servoPin);
  // We need to attach the servo to the used pin number
  // Connect to WiFi network
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  // Wait until connected to WiFi
  while (WiFi.status() != WL_CONNECTED) {
    delay(250);
    Serial.print(".");
  }
  // Confirmation that WiFi is connected
  Serial.println("");
  Serial.println("WiFi connected");
  // Start the Web Server
  server.begin();
  Serial.println("Web Server Started");
  // Display IP address
  Serial.print("You can connect to the Server here: ");
  Serial.print("http://");
  Serial.print(WiFi.localIP());
  Serial.println();
  Serial.println("Going into deep sleep for 20 seconds");
  ESP.deepSleep(20e6); // 20e6 is 20 microseconds
}

void loop() {
  // Check if someone is connected
  WiFiClient client = server.available();
  if (!client) {
    return;
  }
  // Read which button was pressed on the Web Page
  String request = client.readStringUntil('\r');
  // Light up LEDs based on the button pressed
  if (request.indexOf("/OFF=1") != -1) {
    Servo1.attach(servoPin);
    // attaches the servo on pin 9 to the servo object
    delay(100);
    Servo1.write(-90);
    // sets the servo position according to the scaled value
    delay(1000);
    // waits for it to get to the position
    Servo1.detach();
    delay(1000);
    buttonpressed = LOW;
    firstrun = 1;
  }
  if (request.indexOf("/ON=1") != -1) {
    Servo1.attach(servoPin);
    // attaches the servo on pin 9 to the servo object
    delay(100);
    Servo1.write(90);
    // sets the servo position according to the scaled value
    delay(1000);
    // waits for it to get to the position
    Servo1.detach();
    delay(1000);
    buttonpressed = HIGH;
    firstrun = 1;
  }
  // Display the HTML web page
  client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
  client.println("<link rel=\"icon\" href=\"data:,\">");
  // CSS to style the on/off buttons
  // Feel free to change the background-color and font-size attributes to fit your preferences
  client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
  client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
  // Web Page Heading
  client.println("<body><h1>Dog Feeder</h1>");
  // Create Web Page
  client.println("HTTP/1.1 200 OK"); // HTML Header
  client.println("Content-Type: text/html");
  client.println("");
  client.println("<!DOCTYPE HTML>");
  client.println("<meta charset=ISO-8859-15>");
  client.println("<html>"); // Start of HTML
  client.println("<style>");
  client.println("body {background-color: #ACAEAD;}"); // Set Background Color
  client.println("Button {background-color: #195B6A; border: none; color: white; padding: 16px 40px;"); // Set Background Color
  client.println("</style>");
  client.println("<h1>Dog Food Dispenser</h1>");
  if (buttonpressed == LOW) {
    client.print("OFF");
  }
  if (buttonpressed == HIGH) {
    client.print("ON");
  }
  client.println("<br><br>");
  client.println("<a href=\"/ON=1\"\"><button class=\"/Butme\">Liberar Ra&ccedil;&atilde;o</button></a><br />");
  client.println("<br><br>");
  client.println("<a href=\"/OFF=1\"\"><button class=\"/Butme\">Fechar</button></a>");
  client.println("<br><br>");
  client.println("</html>");
  delay(10);
}

Answer 1

loop()中的代码永远不会运行。 ESP8266上的深度睡眠（至少对于Arduino项目而言）实际上会在唤醒时重置处理器，除了RTC内存之外都会丢失所有内容。因此，当您调用ESP.deepSleep()时，在RTC内存中设置一个标志，处理器将在20秒后重置，下一次setup()被调用REASON_DEEP_SLEEP_AWAKE将被设置为重置原因

由于您正在尝试运行Web服务器，因此没有理想的睡眠模式可以使您的Web服务器保持活动状态。即使是调制解调器睡眠也需要您拆卸，并且每次都要重新启动Web服务器。这意味着您的浏览器连接会失败，除非您在清醒时抓住了芯片。

ESP8266不会从深度睡眠中醒来

1 个答案: