我有一个使用Arduino Uno和以太网盾的草图 - 它工作正常。现在我已经掌握了一些Arduino Uno WiFi,我想将草图从以太网移植到wifi - 但我现在已经碰壁了。我找到的大多数指南/常见问题/帮助都是针对WiFi Shield,而不是WiFi Arduino,所以我被困在这里。
以下是我的(原始以太网)代码。我可以发布我修改过的Wifi代码,但我甚至无法编译它而没有错误。
// Hartmann fugtighedsmåler v 0.1
// Lavet af Jan Andreasen
// Skriver til DB på FDKTO517
#include <Ethernet.h>
#include <SPI.h>
#include <DHT.h>
#define DHTPIN 2 // Siger sig selv
#define DHTTYPE DHT11 // Typen af sensor.
float h = 0;
float t = 0;
byte mac[] = {0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02}; // Macadresse på kortet
IPAddress server(10,16,9,229); // Server adressen på SQL'en
EthernetClient client;
DHT dht(DHTPIN, DHTTYPE);
void setup() {
Serial.begin(9600);
Serial.println("Starting...");
Ethernet.begin(mac);
dht.begin();
}
void loop() {
readTempHum();
delay(300000); // Loop timer i millis - 5 minutter
}
void get_request(float t, float h) {
Serial.println("Connecting to Client...");
if (client.connect(server, 10080)) {
Serial.println("--> connection ok\n");
client.print("GET /test.php?");
// Placering af PHP script til upload til DB
client.print("t="); // Temp
client.print(t);
client.print("&h="); // Fugtighed
client.print(h);
client.println(" HTTP/1.1");
client.print( "Host: " );
client.println(server);
client.println("Connection: close");
client.println();
client.println();
client.stop();
Serial.println("--> finished transmission\n");
} else {
Serial.println("--> connection failed\n");
}
}
void readTempHum() {
h = dht.readHumidity();
t = dht.readTemperature();
{
Serial.print("Humidity: ");
Serial.print(h);
Serial.print("%\t");
Serial.print("Temperature:");
Serial.print(t);
Serial.println("*C");
get_request(t,h);
}
}
我还发布了此on the Arduino Forum。对不起,如果你看到我的双重帖子,我也会在这里发布解决方案。
新草图:
#include <Wire.h>
#include <UnoWiFiDevEd.h>
#include <DHT.h>
#define DHTPIN 4
#define DHTTYPE DHT11
float h = 0;
float t = 0;
DHT dht(DHTPIN, DHTTYPE);
void setup() {
const char* connector = "rest";
const char* server = "10.16.9.229";
const char* method = "GET";
const char* resource = "/test.php?t=";
Serial.begin(9600);
Ciao.begin();
dht.begin();
pinMode(2, INPUT);
delay(10000);
}
void loop() {
readTempHum();
// doRequest(connector, server, resource, method);
delay(300000);
}
void doRequest(const char* conn, const char* server, const char* command, const char* method, float t, float h){
CiaoData data = Ciao.write(conn, server, command, method);
}
void readTempHum() {
h = dht.readHumidity();
t = dht.readTemperature();
const char* connector = "rest";
const char* server = "10.16.9.229";
const char* method = "GET";
const char* resource = "/test.php?t=";
{
doRequest(connector, server, resource, method,t,h);
}
}
现在,我遇到了一个新问题。来自传感器(t和h)的值应该在HTTP / GET命令中输出,如下所示: test.php的T = 1&安培; H = 2 但我似乎无法做到这一点。如果我尝试将资源定义为此 const char * resource =&#34; /test.php?t =&#34; + t +&#34;&amp; h =&#34; + h; 我得到一个错误(很明显),但如果我尝试将其声明为字符串,我又会出现同样的错误。
错误:
HumidSQL3_Wifi_master:24: error: invalid operands of types 'const char [13]' and 'float' to binary 'operator+'
const char* resource = "/test.php?t="+t+"&h="+h;
现在,我希望你们中的一些人可以在这里帮助我:/
答案 0 :(得分:1)
如果是Arduino.org Arduino UNO WiFi Developer Edition,请使用WiFi链接UNO WiFi Serial1 library
答案 1 :(得分:0)
好的 - 所以我让它成功了。我不得不从头开始,在Juraj的帮助下(我也会接受你的回答)它现在有效。
以下是最终草图(“最终”,因为DHT11传感器仅用于测试目的,作为概念验证)
// Hartmann fugtighedsmåler v 0.2.2
// Lavet af Jan Andreasen
// Skriver til DB på FDKTO517
// WiFi udgave, testversion
#include <Wire.h>
#include <UnoWiFiDevEd.h>
#include <DHT.h>
#define DHTPIN 4
#define DHTTYPE DHT11
#define CONNECTOR "rest"
#define SERVER_ADDR "10.16.9.229"
float h = 0;
float t = 0;
DHT dht(DHTPIN, DHTTYPE);
void setup() {
Serial.begin(9600);
Ciao.begin();
dht.begin();
pinMode(2, INPUT); // I'm not sure if this is required, just saw it now
delay(10000); // A 10 second delay from start to initialization
}
void loop() {
readTempHum();
delay(300000); // A 5 minute delay between measurements
}
void readTempHum() {
h = dht.readHumidity(); // Reads the humidity from sensor
t = dht.readTemperature(); // Reads the temperature from sensor
String uri = "/test.php?t="; // URL to the PHP-file
uri += t; // Insert the T-value
uri +="&h=";
uri += h; // Insert the H-value
CiaoData data = Ciao.write(CONNECTOR, SERVER_ADDR, uri); // Make a basic HTTP request to the specified server using REST and the URL specified above
}
也许不是你见过的最漂亮的代码,但它现在有效。感谢您的所有投入:)