129 lines
2.6 KiB
C++
Executable File
129 lines
2.6 KiB
C++
Executable File
/*
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Arduino Leonardo <--> ESP8266
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Eamil: earl@microcontrollerelectonics.com
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*/
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#define SSID "your_SSID"
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#define PASS "your_password"
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#define DST_IP "192.168.0.100"
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#define CONNECT_ATTEMPTS 5
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#define RST 8
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#define CHP 9
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#define LED 13
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void setup() {
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pinMode(RST, OUTPUT);
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pinMode(LED, OUTPUT);
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pinMode(CHP, OUTPUT);
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reset();
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Serial.begin(9600);
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Serial1.begin(115200);
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delay(5000);
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Serial1.println("AT+RST");
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delay(1000);
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if (Serial1.find("ready")) Serial.println("Module is ready");
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else {
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Serial.println("ESP8266 Module did not respond.");
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Serial.println("Enter Commands Manually.");
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while (1) chk_serial_io();
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}
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delay(1000);
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boolean connected = false;
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for (int i = 0; i < CONNECT_ATTEMPTS; i++) {
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if (connectWiFi()) {
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connected = true;
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break;
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}
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}
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if (!connected) {
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Serial.println("Enter Commands Manually.");
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while (1) chk_serial_io();
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}
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delay(5000);
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Serial1.println("AT+CIFSR");
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Serial.println("ip address:");
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while (Serial1.available()) Serial.write(Serial1.read());
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Serial1.println("AT+CIPMUX=0");
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}
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void reset() {
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digitalWrite(LED,HIGH);
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digitalWrite(CHP,HIGH);
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digitalWrite(RST,LOW);
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delay(100);
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digitalWrite(RST,HIGH);
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delay(1000);
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digitalWrite(LED,LOW);
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}
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void loop() {
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String cmd = "AT+CIPSTART=\"TCP\",\"";
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cmd += DST_IP;
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cmd += "\",80";
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Serial1.println(cmd);
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Serial.println(cmd);
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if (Serial1.find("Error")) return;
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cmd = "GET / HTTP/1.0\r\n\r\n";
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Serial1.print("AT+CIPSEND=");
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Serial1.println(cmd.length());
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if (Serial1.find(">")) {
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Serial.print(">");
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} else {
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Serial1.println("AT+CIPCLOSE");
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Serial.println("connect timeout");
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delay(1000);
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return;
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}
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Serial1.print(cmd);
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delay(2000);
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while (Serial1.available()) {
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char c = Serial1.read();
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Serial.write(c);
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if (c == '\r') Serial.print('\n');
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}
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Serial.println("====");
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delay(1000);
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}
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void chk_serial_io() {
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if (Serial1.available()) {
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// if (Serial1.find("busy")) {
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// Serial.println("Resetting...");
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// reset();
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// }
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int inByte = Serial1.read();
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Serial.write(inByte);
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}
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if (Serial.available()) {
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int inByte = Serial.read();
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Serial1.write(inByte);
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}
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}
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boolean connectWiFi() {
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Serial1.println("AT+CWMODE=1");
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String cmd = "AT+CWJAP=\"";
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cmd += SSID;
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cmd += "\",\"";
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cmd += PASS;
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cmd += "\"";
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Serial.println(cmd);
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Serial1.println(cmd);
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delay(2000);
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if (Serial1.find("OK")) {
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Serial.println("OK, WiFi Connected.");
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return true;
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} else {
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Serial.println("Can not connect to WiFi.");
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return false;
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}
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}
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