简介

硬件连接

D1------------红色LED正极（负极串联电阻接地）

D2------------绿色LED正极（负极串联电阻接地）

D4------------外部输入按钮正极

D5------------蓝色LED正极（负极串联电阻接地）

3V------------电源正极

G-------------地线

arduino代码

#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <ArduinoJson.h> // 添加这个库用于解析JSON

const char* ssid = "{YOUR_WIFI_SSID}";
const char* password = "{YOUR_WIFI_PASSWORD}";
const int successPin = 4; // 发送成功信号的GPIO
const int failurePin = 5; // 发送失败信号的GPIO
const int buttonPin = 2;  // 连接外部按钮的GPIO
const int wifiPin = 14;  // 监控WiFi连接状态的GPIO
const unsigned long notificationDuration = 3000; // Duration of notification in milliseconds

volatile bool buttonPressed = false;
unsigned long notificationStartTime = 0;

ICACHE_RAM_ATTR void handleButtonInterrupt() {
  buttonPressed = true;
}

void setup() {
  Serial.begin(115200);
  pinMode(successPin, OUTPUT);
  pinMode(wifiPin, OUTPUT);
  pinMode(failurePin, OUTPUT);
  pinMode(buttonPin, INPUT_PULLUP);

  // Connect to WiFi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }

  Serial.println("Connected to WiFi");
  digitalWrite(wifiPin, HIGH);

  // Configure button interrupt
  attachInterrupt(digitalPinToInterrupt(buttonPin), handleButtonInterrupt, FALLING);
}


bool sendHttpPostRequest(String url, String formData, String checkField, String successValue) {
  Serial.println("Sending HTTP POST request...");

  // Send HTTP POST request
  WiFiClient client; // Declare WiFiClient object
  HTTPClient http;
  http.begin(client, url);
  http.addHeader("Content-Type", "application/x-www-form-urlencoded");
  int httpResponseCode = http.POST(formData);

  // Print HTTP response code and content
  Serial.print("HTTP Response code: ");
  Serial.println(httpResponseCode);

  if (httpResponseCode == 200) {
    // Parse JSON data
    DynamicJsonDocument jsonDoc(512); // Adjust the size based on your JSON data size
    DeserializationError jsonError = deserializeJson(jsonDoc, http.getString());

    // Check if parsing was successful
    if (jsonError) {
      Serial.print("JSON parsing failed! Error code: ");
      Serial.println(jsonError.c_str());
      http.end();
      return false;
    }

    // Check the value of the specified checkField
    String responseValue = jsonDoc[checkField].as<String>();
    Serial.print("Response Value: ");
    Serial.println(responseValue);

    // Check if the response value matches the specified successValue
    if (responseValue == successValue) {
      http.end();
      return true;
    }
  }

  http.end();
  return false;
}

void loop() {
  if (buttonPressed) {
    Serial.println("Button pressed!");

    // Check if HTTP POST request was successful
    bool postRequestSuccess = sendHttpPostRequest("EXAMPLTE.COM/API", "KEY=VALUE", "result", "success");

    // Set output pins based on the request result
    if (postRequestSuccess) {
      digitalWrite(successPin, HIGH);
      digitalWrite(failurePin, LOW);
    } else {
      digitalWrite(successPin, LOW);
      digitalWrite(failurePin, HIGH);
    }

    // Record the start time of the notification
    notificationStartTime = millis();

    buttonPressed = false; // Reset button state
  }

  // Check if the notification should be turned off
  if (millis() - notificationStartTime >= notificationDuration) {
    digitalWrite(successPin, LOW);
    digitalWrite(failurePin, LOW);
  }

  // 其他的循环代码...
}