esp8266遥控车代码
时间: 2023-06-18 16:04:13 浏览: 192
以下是一个简单的基于ESP8266的遥控车代码示例:
```c
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <Servo.h>
// Replace with your network credentials
const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";
// Create an instance of the web server
ESP8266WebServer server(80);
// Create an instance of the Servo library
Servo servo;
// Define the pins for the motor control
const int motorPin1 = D1;
const int motorPin2 = D2;
void setup() {
// Start Serial communication
Serial.begin(115200);
// Connect to Wi-Fi network
WiFi.begin(ssid, password);
Serial.println("");
// Wait for connection
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}
Serial.println("Connected to WiFi");
// Start the motor control pins as output
pinMode(motorPin1, OUTPUT);
pinMode(motorPin2, OUTPUT);
// Start the Servo library
servo.attach(D3);
// Start the web server
server.begin();
Serial.println("Web server started");
}
void loop() {
// Handle incoming client requests
server.handleClient();
}
// Define the function to control the motor
void setMotor(int speed1, int speed2) {
if (speed1 < 0) {
digitalWrite(motorPin1, LOW);
digitalWrite(motorPin2, HIGH);
speed1 = -speed1;
} else if (speed1 > 0) {
digitalWrite(motorPin1, HIGH);
digitalWrite(motorPin2, LOW);
} else {
digitalWrite(motorPin1, LOW);
digitalWrite(motorPin2, LOW);
}
if (speed2 < 0) {
servo.write(0);
speed2 = -speed2;
} else if (speed2 > 0) {
servo.write(180);
}
// Map the speeds to the pulse widths for the Servo library
int pulseWidth = map(speed2, -100, 100, 500, 2500);
servo.writeMicroseconds(pulseWidth);
// Map the speeds to the PWM range for the motor control pins
int pwm1 = map(speed1, -100, 100, 0, 1023);
int pwm2 = map(speed2, -100, 100, 0, 1023);
// Set the PWM output for the motor control pins
analogWrite(motorPin1, pwm1);
analogWrite(motorPin2, pwm2);
}
// Define the web server routes to control the car
void handleRoot() {
String html = "<html><body>";
html += "<h1>ESP8266 Car Control</h1>";
html += "<p><a href=\"forward\">Forward</a></p>";
html += "<p><a href=\"backward\">Backward</a></p>";
html += "<p><a href=\"left\">Left</a></p>";
html += "<p><a href=\"right\">Right</a></p>";
html += "<p><a href=\"stop\">Stop</a></p>";
html += "</body></html>";
server.send(200, "text/html", html);
}
void handleForward() {
setMotor(100, 0);
server.send(200, "text/plain", "Forward");
}
void handleBackward() {
setMotor(-100, 0);
server.send(200, "text/plain", "Backward");
}
void handleLeft() {
setMotor(0, -100);
server.send(200, "text/plain", "Left");
}
void handleRight() {
setMotor(0, 100);
server.send(200, "text/plain", "Right");
}
void handleStop() {
setMotor(0, 0);
server.send(200, "text/plain", "Stop");
}
void setupRoutes() {
server.on("/", handleRoot);
server.on("/forward", handleForward);
server.on("/backward", handleBackward);
server.on("/left", handleLeft);
server.on("/right", handleRight);
server.on("/stop", handleStop);
}
```
在这个例子中,我们使用了ESP8266的WiFi库来连接到无线网络,并且创建了一个基于HTTP协议的Web服务器,用于控制遥控车的运动。我们还使用了Servo库来控制舵机,以及PWM输出来控制电机速度。
我们定义了一些Web服务器路由,例如“ /forward”、“ /backward”、“ /left”、“ /right”和“ /stop”,它们分别控制车的前进、后退、左转、右转和停止动作。当客户端访问这些路由时,服务器将调用相应的处理程序函数来控制车的运动。