Simple blink LED from a webservice/httprequest
Posted: Mon Aug 21, 2017 3:05 pmHi
So im very new to the arduino world, but the hardware are giving me some issue,
I got a Leonardo arduino and an ESP8266. My goal is to make a LED light up via webservice/API/httprequest, what ever works best. So if i call 166.10.10.10/?led=1 (or what ever IP it has), i want it to light up.
I found some code, and I managed to get an OK and connect via AT command. But know im stuck, i have no idea if its another libery I need to use, or just some more code. (and maybe this code is that the right for me
So im very new to the arduino world, but the hardware are giving me some issue,
I got a Leonardo arduino and an ESP8266. My goal is to make a LED light up via webservice/API/httprequest, what ever works best. So if i call 166.10.10.10/?led=1 (or what ever IP it has), i want it to light up.
I found some code, and I managed to get an OK and connect via AT command. But know im stuck, i have no idea if its another libery I need to use, or just some more code. (and maybe this code is that the right for me
Code: Select all
/*
Arduino Leonardo <--> ESP8266
*/
#define SSID "myRouter"
#define PASS "123456"
#define DST_IP "192.168.1.66"
#define CONNECT_ATTEMPTS 5
#define RST 13
#define CHP 12
#define LED 11
void setup() {
pinMode(RST, OUTPUT);
pinMode(LED, OUTPUT);
pinMode(CHP, OUTPUT);
reset();
Serial.begin(9600);
Serial1.begin(115200);
delay(5000);
Serial1.println("AT+RST");
delay(1000);
if (Serial1.find("ready")) Serial.println("Module is ready");
else {
Serial.println("ESP8266 Module did not respond.");
Serial.println("Enter Commands Manually.");
while (1) chk_serial_io();
}
delay(1000);
boolean connected = false;
for (int i = 0; i < CONNECT_ATTEMPTS; i++) {
if (connectWiFi()) {
connected = true;
break;
}
}
if (!connected) {
Serial.println("Enter Commands Manually.");
while (1) chk_serial_io();
}
delay(5000);
Serial1.println("AT+CIFSR");
Serial.println("ip address:");
while (Serial1.available()) Serial.write(Serial1.read());
Serial1.println("AT+CIPMUX=0");
}
void reset() {
digitalWrite(LED,HIGH);
digitalWrite(CHP,HIGH);
digitalWrite(RST,LOW);
delay(100);
digitalWrite(RST,HIGH);
delay(1000);
digitalWrite(LED,LOW);
}
void loop() {
String cmd = "AT+CIPSTART=\"TCP\",\"";
cmd += DST_IP;
cmd += "\",80";
Serial1.println(cmd);
Serial.println(cmd);
if (Serial1.find("Error")) return;
cmd = "GET / HTTP/1.0\r\n\r\n";
Serial1.print("AT+CIPSEND=");
Serial1.println(cmd.length());
if (Serial1.find(">")) {
Serial.print(">");
} else {
Serial1.println("AT+CIPCLOSE");
Serial.println("connect timeout");
delay(1000);
return;
}
Serial1.print(cmd);
delay(2000);
while (Serial1.available()) {
char c = Serial1.read();
Serial.write(c);
if (c == '\r') Serial.print('\n');
}
Serial.println("====");
delay(1000);
Serial.println("Test");
}
void chk_serial_io() {
if (Serial1.available()) {
// if (Serial1.find("busy")) {
// Serial.println("Resetting...");
// reset();
}
int inByte = Serial1.read();
Serial.write(inByte);
}
if (Serial.available()) {
int inByte = Serial.read();
Serial1.write(inByte);
}
}
boolean connectWiFi() {
Serial1.println("AT+CWMODE=1");
String cmd = "AT+CWJAP=\"";
cmd += SSID;
cmd += "\",\"";
cmd += PASS;
cmd += "\"";
Serial.println(cmd);
Serial1.println(cmd);
delay(2000);
if (Serial1.find("OK")) {
Serial.println("OK, WiFi Connected.");
return true;
} else {
Serial.println("Can not connect to WiFi.");
return false;
}
}
