各位大神，请帮忙看看这段程序是否有问题esp8266
#include <ESP8266WiFi.h>#include <ESP8266HTTPClient.h>
#include <DHT.h>
const char ssid[] = "";
const char password[] = "";
String url = "";
String temp;
#define DHTPIN 2
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);
void setup()
{
Serial.begin(115200);
initWifi();
dht.begin();
}
void loop()
{
delay(10000);
if (WiFi.status() == WL_CONNECTED)
{
temp = initDht11();
sendGet(temp);
}
else
{
initWifi();
}
}
void initWifi()
{
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
Serial.println(WiFi.localIP());
}
String initDht11()
{
float h = dht.readHumidity();
float t = dht.readTemperature();
float f = dht.readTemperature(true);
if (isnan(h) || isnan(t) || isnan(f))
{
Serial.println(F("Failed to read from DHT sensor!"));
return "";
}
float hif = dht.computeHeatIndex(f, h);
float hic = dht.computeHeatIndex(t, h, false);
Serial.print(F("Humidity: "));Serial.print(h);
Serial.print(F("%Temperature: "));Serial.print(t);
Serial.print(F("°C "));Serial.print(f);
Serial.print(F("°FHeat index: "));Serial.print(hic);
Serial.print(F("°C "));Serial.print(hif);
Serial.println(F("°F"));
return String(h) + "," + String(t) + "," + String(f) + "," + String(hic) + "," + String(hif);
}
void sendGet(String str)
{
HTTPClient http;
WiFiClient client;
if (http.begin(client, url + "&" + str))
{
int httpCode = http.GET();
if (httpCode > 0)
{
if (httpCode == HTTP_CODE_OK || httpCode == HTTP_CODE_MOVED_PERMANENTLY)
{
String payload = http.getString();
Serial.println(payload);
}
}
http.end();
}
}
1.emp8266使用dht11
功能是连接wifi以后，获取dht11的记录，然后把记录通过get请求传送到我个人的微信上。
谢谢各位大神指点
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