/* * Contol DC Motor over WiFi using ESP8266 * using 2 channel relay module. * * Watch Video instrution for this code:https://youtu.be/zyCdIlPsIXU * * Full explanation of this code and wiring diagram is available at * my Arduino Course at Udemy.com here: http://robojax.com/L/?id=62 * Written by Ahmad Shamshiri on Marc 03, 2020 * in Ajax, Ontario, Canada. www.robojax.com * * Get this code and other Arduino codes from Robojax.com Learn Arduino step by step in structured course with all material, wiring diagram and library all in once place. Purchase My course on Udemy.com http://robojax.com/L/?id=62 If you found this tutorial helpful, please support me so I can continue creating content like this. You can support me on Patreon http://robojax.com/L/?id=63 or make donation using PayPal http://robojax.com/L/?id=64 * * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.* * This code has been download from Robojax.com This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Copyright (c) 2015, Majenko Technologies All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * * Neither the name of Majenko Technologies nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ static const uint8_t D0 = 16; static const uint8_t D1 = 5; static const uint8_t D2 = 4; static const uint8_t D3 = 0; static const uint8_t D4 = 2; static const uint8_t D5 = 14; static const uint8_t D6 = 12; static const uint8_t D7 = 13; static const uint8_t D8 = 15; static const uint8_t D9 = 3; static const uint8_t D10 = 1; int relayON = LOW; int relayOFF = HIGH; const int relay1Pin =D1; const int relay2Pin =D2; int motorDirection = 0;//1=CCW 0=CW int motorState =0;//initial motor state 0=off, 1=on String buttonTitle1[] ={"CCW", "CW", "Motor ON"}; String buttonTitle2[] ={"CCW", "CW", "Motor OFF"}; String argId[] ={"ccw", "cw", "do"}; #include #include #include #include #ifndef STASSID #define STASSID "YOUR WIFI SSID" #define STAPSK "YOUR WIFI PASSWORD" #endif const char *ssid = STASSID; const char *password = STAPSK; ESP8266WebServer server(80); void handleRoot() { //Robojax.com ESP8266 Relay Motor Control String HTML ="\ \ \ \t\nRobojax ESP8266 Relay Motor Control\ \t\n\ \n\n\n\n\n\n

Robojax ESP8266 Relay Motor Control

\n"; if(motorDirection ==0 && motorState){ HTML +="\n\t

Motor Running in CCW

\n"; }else if(motorDirection ==1 && motorState){ HTML +="\n\t

Motor Running in CW

\n"; }else{ HTML +="\n\t

Motor OFF

\n"; } if(motorDirection ==0){ HTML +="\t
\n\t\t"; HTML +=buttonTitle1[0]; //relay ON title }else{ HTML +="\t\n\n"; if(motorDirection ==1){ HTML +="\t
\n\t\t"; HTML +=buttonTitle1[1]; //relay ON title }else{ HTML +="\t\n\n"; if(motorState ==0 ){ HTML +="\t
\n\t\t"; HTML +=buttonTitle1[2]; //relay ON title }else{ HTML +="\t\n\n"; HTML +="\t\n\n\n"; server.send(200, "text/html", HTML); }//handleRoot() void handleNotFound() { //Robojax.com ESP8266 Relay Control String message = "File Not Found\n\n"; message += "URI: "; message += server.uri(); message += "\nMethod: "; message += (server.method() == HTTP_GET) ? "GET" : "POST"; message += "\nArguments: "; message += server.args(); message += "\n"; for (uint8_t i = 0; i < server.args(); i++) { message += " " + server.argName(i) + ": " + server.arg(i) + "\n"; } server.send(404, "text/plain", message); //Robojax.com ESP8266 Relay Control }//end of handleNotFound() void setup(void) { //Robojax.com ESP8266 Relay Control pinMode(relay1Pin, OUTPUT);// define a pin as output for relay digitalWrite(relay1Pin, relayOFF);//initial state either ON or OFF pinMode(relay2Pin, OUTPUT);// define a pin as output for relay digitalWrite(relay2Pin, relayOFF);//initial state either ON or OFF Serial.begin(115200);//initialize the serial monitor Serial.println("Robojax ESP8266 Relay Control"); //Relay control ON OFF by Robojax.com WiFi.mode(WIFI_STA); WiFi.begin(ssid, password); Serial.println(""); // Wait for connection while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.print("Connected to "); Serial.println(ssid); Serial.print("IP address: http://"); Serial.println(WiFi.localIP()); //multicast DNS //Robojax.com ESP8266 Relay Control if (MDNS.begin("robojaxESP8266")) { Serial.println("MDNS responder started"); Serial.println("access via http://robojaxESP8266"); } server.on("/", handleRoot); server.on("/motor", HTTP_GET, relayControl); server.onNotFound(handleNotFound); server.begin(); Serial.println("HTTP server started"); }//end of setup void loop(void) { //Robojax ESP8266 Relay Control server.handleClient(); MDNS.update(); a if(motorState ==1) { controlMotor(); }else{ motorStop(); } delay(100); //Robojax ESP8266 Relay Control }//end of loop /* * relayControl() * updates the value of "relayState" varible to 1 or zero * returns nothing * written by Ahmad Shamshiri * on Wednesday Feb 22, 2020 at 16:20 in Ajax, Ontario, Canada * www.robojax.com */ void relayControl() { if(server.arg(argId[0]) == "on") { motorDirection = 0;// CCW }else if(server.arg(argId[1]) == "on"){ motorDirection = 1; // CW }else if(server.arg(argId[2]) == "on"){ motorState =1;; // turn the motor ON }else if(server.arg(argId[2]) == "off"){ motorState =0;; // turn the motor OFF } handleRoot(); }//relayControl() end /* * controlMotor() * controls the relay so the motor rotates in CCW/CW */ void controlMotor() { if(motorDirection == 1){ digitalWrite(relay1Pin, LOW);// turn relay 1 ON digitalWrite(relay2Pin, HIGH);// turn relay 2 OFF Serial.println("Rotating in CCW"); }else{ digitalWrite(relay1Pin, HIGH);// turn relay 1 OFF digitalWrite(relay2Pin, LOW);// turn relay 2 ON Serial.println("Rotating in CW"); } }// controlMotor() /* * motorStop() * controls the relay so the motor is stopped */ void motorStop() { digitalWrite(relay1Pin, relayOFF);// turn relay 1 OFF digitalWrite(relay2Pin, relayOFF);// turn relay 2 OFf Serial.println("Stopped"); }