Can someone point me in the right direction? I am trying to insert variables, strings, chars and other data into my webclient get requests. Can someone tell me what I am doing wrong? I just can't quite figure out the coding format for this, thx
Specifically, I am trying to insert the MAC value into my GET request. I will use your supreme help to then insert temperature sensor values from code that is not present in this example.
I have tried:
client.print(mac);
client.print({mac});
client.print(mac, HEX);
client.print(mac, String);
client.print(HEX, mac);
client.print(mac, Byte);
and:
Ethernet.client(mac) = variable1;
client.print(variable1);
client(mac) = somevariable;
client.print(somevariable);
I am trying to end up with a GET request that sends essentially:
("GET /freezer/?time_stamp=2015-04-06%2023:12:01&device_id=0xDE, 0xB1, 0xBE, 0xEF, 0x23, 0xED&sensor_id=1&fahrenheit=120.01&celsius=12.1 HTTP/1.1");
or
/freezer/?time_stamp=2015-04-06%2023:12:01&device_id=0xDE, 0xB1, 0xBE, 0xEF, 0x23, 0xED&sensor_id=1&fahrenheit=120.01&celsius=12.1
#include <SPI.h>
#include <Ethernet.h>
// Enter a MAC address for your controller below.
// Newer Ethernet shields have a MAC address printed on a sticker on the shield
byte mac[] = { 0xDE, 0xB1, 0xBE, 0xEF, 0x23, 0xED };
// if you don't want to use DNS (and reduce your sketch size)
// use the numeric IP instead of the name for the server:
//IPAddress server(74,125,232,128); // numeric IP for Google (no DNS)
char server[] = "usav1svopsd1"; // name address for Google (using DNS)
// Set the static IP address to use if the DHCP fails to assign
IPAddress ip(10,1,132,199);
// Initialize the Ethernet client library
// with the IP address and port of the server
// that you want to connect to (port 80 is default for HTTP):
EthernetClient client;
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
// start the Ethernet connection:
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// no point in carrying on, so do nothing forevermore:
// try to congifure using IP address instead of DHCP:
Ethernet.begin(mac, ip);
}
// give the Ethernet shield a second to initialize:
delay(1000);
Serial.println("connecting...");
// if you get a connection, report back via serial:
if (client.connect(server, 80)) {
Serial.println("connected");
// Make a HTTP request:
client.print("GET /freezer/?time_stamp=2015-04-06%2023:12:01&device_id="); client.print("mac"); client.println("&sensor_id=1&fahrenheit=120.01&celsius=12.1 HTTP/1.1");
client.println("Host: usav1svopsd1");
client.println("Connection: close");
client.println();
}