Using STM32 and ESP8266 to control an elevator with an Android app and with natural speech via SpeechRecognitionAI.
Video: https://youtu.be/aTKumJoA4KU
Speech Recognition AI: https://github.com/viktorvano/SpeechRecognitionAI
Similar ESP8266 project (similar STM32 code): https://github.com/viktorvano/Remote-Robot
[STM32 C code] You have to change your WiFi SSID credentials:
#define WiFi_Credentials "AT+CWJAP=\"WiFiSSID\",\"WiFiPASSWORD\"\r\n"[Android Studio - Java]
public class MainActivity extends AppCompatActivity {
public static String elevatorIP = "192.168.2.172";//change this IP address according to your ESP8266
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
Button button = findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
sendDataToServer(elevatorIP, "elevator");
}
});
}
private void sendDataToServer(String IP, String message)
{
try
{
// need host and port, we want to connect to the ServerSocket at port 7777
Socket socket = new Socket();
socket.setSoTimeout(800);
socket.connect(new InetSocketAddress(IP, 80), 800);
System.out.println("Connected!");
// get the output stream from the socket.
OutputStream outputStream = socket.getOutputStream();
// create a data output stream from the output stream so we can send data through it
DataOutputStream dataOutputStream = new DataOutputStream(outputStream);
System.out.println("Sending string to the ServerSocket");
// write the message we want to send
dataOutputStream.writeUTF(message);
dataOutputStream.flush(); // send the message
dataOutputStream.close(); // close the output stream when we're done.
System.out.println("Closing socket.");
socket.close();
}catch (Exception e)
{
e.printStackTrace();
}
}
}
