[英]how to send sensor data from arduino as a server to a jsp on tomcat?
[英]Send sensor data from Nodmcu to labview
我想將傳感器數據(如 DHT)從 NODEMCU 發送到 LABVIEW。 有沒有圖書館或草圖可以做到這一點? NODEMCU 以站點模式連接到網絡。 在labview中,我必須使用哪個庫來做到這一點?
已解決: 1. 在 Arduino IDE 中試試這個庫:ESP8266WiFi.h
主機是你的電腦,比如 192.168.1.11
端口:550(例如)
#include <ESP8266WiFi.h>
const char* ssid = "xxxx"; // SSID
const char* password = "xxxx"; // Password
const char* host = "xxx.xxx.xxx.xxx"; // Server IP
const int port = 550; // Server Port
const int watchdog = 5000; // Watchdog frequency
unsigned long previousMillis = millis();
void setup() {
Serial.begin(115200);
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
void loop() {
unsigned long currentMillis = millis();
if ( currentMillis - previousMillis > watchdog ) {
previousMillis = currentMillis;
WiFiClient client;
if (!client.connect(host, port)) {
Serial.println("connection failed");
return;
}
String url = "/watchdog?command=watchdog&uptime=";
url += String(millis());
url += "&ip=";
url += WiFi.localIP().toString();
// Envoi la requete au serveur - This will send the request to the server
client.print(String("GET ") + url + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"Connection: close\r\n\r\n");
unsigned long timeout = millis();
while (client.available() == 0) {
if (millis() - timeout > 5000) {
Serial.println(">>> Client Timeout !");
client.stop();
return;
}
}
// Read all the lines of the reply from server and print them to Serial
while(client.available()){
String line = client.readStringUntil('\r');
Serial.print(line);
}
}
}
2. labview :你需要2個塊來做到這一點:
TCP監聽
TCP讀
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