Board - ESP32 UNO D1
Controlling Dc motor via Alexa . Browser(wifi) , Bluetooth and using door sensors to stop at start/end
Pins -
Motor controller
D16-IM1
D17-IN2
Door sensors
Sensor 1 - 12
Sensor 2 - 25
Libraries used - AsyncTCP .fauxmoESP,BluetoothSerial,WiFi
#include <Arduino.h>
#include <WiFi.h>
#include "BluetoothSerial.h"
#define RELAY_PIN_1 16
#define RELAY_PIN_2 17
const int sensor1 = 12; // set the sensor1 pin mode
const int sensor2 = 25; // set the sensor2 pin mode
WiFiServer server(80);
int state;
#include "fauxmoESP.h"
#define SERIAL_BAUDRATE 115200
#define WIFI_SSID "WIFI_SSID"
#define WIFI_PASS "WIFI_PASS"
#define LAMP_1 "open door"
#define LAMP_2 "close door"
fauxmoESP fauxmo;
// Wi-Fi Connection
void wifiSetup() {
// Set WIFI module to STA mode
WiFi.mode(WIFI_STA);
// Connect
Serial.printf("[WIFI] Connecting to %s ", WIFI_SSID);
WiFi.begin(WIFI_SSID, WIFI_PASS);
// Wait
while (WiFi.status() != WL_CONNECTED) {
Serial.print(".");
delay(100);
}
Serial.println();
// Connected!
Serial.printf("[WIFI] STATION Mode, SSID: %s, IP address: %s\n", WiFi.SSID().c_str(), WiFi.localIP().toString().c_str());
server.begin();
}
BluetoothSerial SerialBT;
void setup()
{
SerialBT.begin("ESP32test"); //Bluetooth device name
pinMode(sensor1, INPUT_PULLUP); // set the sensor1
pinMode(sensor2, INPUT_PULLUP); // set the sensor2
Serial.begin(SERIAL_BAUDRATE);
Serial.println();
wifiSetup();
// LED
pinMode(RELAY_PIN_1, OUTPUT);
digitalWrite(RELAY_PIN_1, LOW);
pinMode(RELAY_PIN_2, OUTPUT);
digitalWrite(RELAY_PIN_2, LOW);
fauxmo.enable(true);
// Add virtual devices
fauxmo.addDevice(LAMP_1);
fauxmo.addDevice(LAMP_2);
fauxmo.onSetState([](unsigned char device_id, const char * device_name, bool state) {
Serial.printf("[MAIN] Device #%d (%s) state: %s\n", device_id, device_name, state ? "ON" : "OFF");
if ( (strcmp(device_name, LAMP_1) == 0) ) {
// this just sets a variable that the main loop() does something about
Serial.println("RELAY 1 switched by Alexa");
//digitalWrite(RELAY_PIN_1, !digitalRead(RELAY_PIN_1));
if (state) {
digitalWrite(RELAY_PIN_1, HIGH);
} else {
digitalWrite(RELAY_PIN_1, LOW);
}
}
if ( (strcmp(device_name, LAMP_2) == 0) ) {
Serial.println("RELAY 2 switched by Alexa");
if (state) {
digitalWrite(RELAY_PIN_2, HIGH);
} else {
digitalWrite(RELAY_PIN_2, LOW);
}
}
});
}
void loop() {
fauxmo.handle();
state = !digitalRead(sensor2);
if (state == HIGH){
digitalWrite(RELAY_PIN_1, HIGH);
}
state = !digitalRead(sensor1);
if (state == HIGH){
digitalWrite(RELAY_PIN_2, HIGH);
}
WiFiClient client = server.available(); // listen for incoming clients
if (client) {
Serial.println("New Client.");
String currentLine = "";
while (client.connected()) {
if (client.available()) {
char c = client.read();
Serial.write(c);
if (c == '\n') {
if (currentLine.length() == 0) {
// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
// and a content-type so the client knows what's coming, then a blank line:
client.println("HTTP/1.1 200 OK");
client.println("Content-type:text/html");
client.println();
// the content of the HTTP response follows the header:
client.print("Click <a href=\"/H1\">here</a> to open-16
");
client.print("Click <a href=\"/L1\">here</a> to turn motor off.
");
client.print("Click <a href=\"/H2\">here</a> to close-17
");
client.print("Click <a href=\"/L2\">here</a> to turn motor off.
");
client.println();
// break out of the while loop:
break;
} else { // if you got a newline, then clear currentLine:
currentLine = "";
}
} else if (c != '\r') { // if you got anything else but a carriage return character,
currentLine += c; // add it to the end of the currentLine
}
// Check to see if the client request was "GET /H" or "GET /L":
if (currentLine.endsWith("GET /H1")) {
digitalWrite(RELAY_PIN_1, LOW);
}
if (currentLine.endsWith("GET /L1")) {
digitalWrite(RELAY_PIN_1, HIGH);
}
if (currentLine.endsWith("GET /H2")) {
digitalWrite(RELAY_PIN_2, LOW);
}
if (currentLine.endsWith("GET /L2")) {
digitalWrite(RELAY_PIN_2, HIGH);
}
}
}
// close the connection:
client.stop();
Serial.println("Client Disconnected.");
if (SerialBT.available()) {
byte data;
data = SerialBT.read();
if (data == '1') //press '1' turns the LED on
{
digitalWrite(RELAY_PIN_1, HIGH);
}
else if (data == '2') //press '2' turns the LED off
{
digitalWrite(RELAY_PIN_1, LOW);
}
if (data == '11') //press '1' turns the LED on
{
digitalWrite(RELAY_PIN_2, HIGH);
}
else if (data == '22') //press '2' turns the LED off
{
digitalWrite(RELAY_PIN_2, LOW);
}
}
}
}
code became too big with libraries attached.
