nanti tanda 4 aan kita kalibraskan untuk kontrol alat
1.Buat Initialisasi Timer (Misalkan)
unsigned long lastConnectionTime = 0;
const unsigned long postingInterval = 10*1000;
String gab="",perintah="";
boolean sudah=false;
2.Pada Loop:
void loop(){
while (client.available()) {
char c = client.read();
// Serial.write(c);
if(c=='!'){sudah=false;}
if(sudah==true){
gab=gab+String(c);
}
if(c=='@'){sudah=true;}
}
.
.
..
3.Buktikan jika data dari server diperoleh,,,,
if(gab.length()>0){
Serial.println("");
Serial.println("~~~~~~~~~~#"+gab+"#~~~~~~~~~~");
Serial.println("");
perintah=gab;
gab="";
}
if (millis() - lastConnectionTime > postingInterval) {
httpRequest();
}
btn1 = digitalRead(button1);
btn2 = digitalRead(button2);
btn3 = digitalRead(button3);
if (btn1 == HIGH || perintah=="4") {
servo.write(0);
stusia = 1;
perintah="";
}
else if (btn2 == HIGH || perintah=="2") {
servo.write(90);
stusia = 2;
perintah="";
}
else if (btn3 == HIGH || perintah=="3") {
servo.write(100);
stusia = 3;
perintah="";
}
void httpRequest() {
client.stop();
if (client.connect(server, 80)) {
//Serial.println("connecting...");
url = "/websaya/simpan.php?status=0&id_alat=" + String(IDALAT) + "&sisa_cairan=" + String(ML) + "&detak_jantung=" + String(sensorjantung_value) + "&laju_infus=" + String(TetesPerMenit) + "&catatan=1&ket=ok";
//Serial.println(url);
client.print(String ("GET " ) + url + " HTTP/1.1\r\n" + "Host: 192.168.0.107\r\n" + "Connection: close\r\n\r\n");
client.println("User-Agent: arduino-ethernet");
client.println("Connection: close");
client.println();
lastConnectionTime = millis();
}
}
}//loop
Atau mngkin butuh koding split untuk memilah data nanatinya
String value1 = splitString(gab, '@', 0);
String value2 = splitString(gab, '@', 1);
String value2 = splitString(gab, '@', 1);
String splitString(String str, char sep, int index){
int found = 0;
int strIdx[] = { 0, -1 };
int maxIdx = str.length() - 1;
for (int i = 0; i <= maxIdx && found <= index; i++)
{
if (str.charAt(i) == sep || i == maxIdx)
{
found++;
strIdx[0] = strIdx[1] + 1;
strIdx[1] = (i == maxIdx) ? i + 1 : i;
}
}
return found > index ? str.substring(strIdx[0], strIdx[1]) : "";
}
NB ini adalah pengembanga dari Contoh koding arduino bawaanyaa...
#include <SPI.h>
#include <Ethernet.h>
// assign a MAC address for the ethernet controller.
// fill in your address here:
byte mac[] = {
0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
};
// Set the static IP address to use if the DHCP fails to assign
IPAddress ip(192, 168, 0, 177);
IPAddress myDns(192, 168, 0, 1);
// initialize the library instance:
EthernetClient client;
char server[] = "www.arduino.cc"; // also change the Host line in httpRequest()
//IPAddress server(64,131,82,241);
unsigned long lastConnectionTime = 0; // last time you connected to the server, in milliseconds
const unsigned long postingInterval = 10*1000; // delay between updates, in milliseconds
void setup() {
// You can use Ethernet.init(pin) to configure the CS pin
//Ethernet.init(10); // Most Arduino shields
//Ethernet.init(5); // MKR ETH shield
//Ethernet.init(0); // Teensy 2.0
//Ethernet.init(20); // Teensy++ 2.0
//Ethernet.init(15); // ESP8266 with Adafruit Featherwing Ethernet
//Ethernet.init(33); // ESP32 with Adafruit Featherwing Ethernet
// start serial port:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
// start the Ethernet connection:
Serial.println("Initialize Ethernet with DHCP:");
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// Check for Ethernet hardware present
if (Ethernet.hardwareStatus() == EthernetNoHardware) {
Serial.println("Ethernet shield was not found. Sorry, can't run without hardware. :(");
while (true) {
delay(1); // do nothing, no point running without Ethernet hardware
}
}
if (Ethernet.linkStatus() == LinkOFF) {
Serial.println("Ethernet cable is not connected.");
}
// try to congifure using IP address instead of DHCP:
Ethernet.begin(mac, ip, myDns);
Serial.print("My IP address: ");
Serial.println(Ethernet.localIP());
} else {
Serial.print(" DHCP assigned IP ");
Serial.println(Ethernet.localIP());
}
// give the Ethernet shield a second to initialize:
delay(1000);
}
void loop() {
// if there's incoming data from the net connection.
// send it out the serial port. This is for debugging
// purposes only:
if (client.available()) {
char c = client.read();
Serial.write(c);
}
// if ten seconds have passed since your last connection,
// then connect again and send data:
if (millis() - lastConnectionTime > postingInterval) {
httpRequest();
}
}
// this method makes a HTTP connection to the server:
void httpRequest() {
// close any connection before send a new request.
// This will free the socket on the WiFi shield
client.stop();
// if there's a successful connection:
if (client.connect(server, 80)) {
Serial.println("connecting...");
// send the HTTP GET request:
client.println("GET /latest.txt HTTP/1.1");
client.println("Host: www.arduino.cc");
client.println("User-Agent: arduino-ethernet");
client.println("Connection: close");
client.println();
// note the time that the connection was made:
lastConnectionTime = millis();
} else {
// if you couldn't make a connection:
Serial.println("connection failed");
}
}
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