S2__esp32_osc_send.cpp

// //////////////////////////////////////////////////////////////////////////
// this sketch reads out three sensors and sends out the reading of the first
// as an OSC message, as an exercise complete this sketch by sending out the
// readings of all three sensors, not just one.
// //////////////////////////////////////////////////////////////////////////

#include <Arduino.h>
#include <easywifi.h>
#include <WiFiUdp.h>
#include <OSCMessage.h>

// wifi credentials
#define WIFI_SSID "hslab_2.4GhHz"
#define WIFI_PASSWORD "enterenter"

int times_per_second = 200;
int refresh_rate = 1000 / times_per_second;

int threshold = 2000;

int reading1, reading2, reading3;

WiFiUDP Udp;                                // A UDP instance to let us send and receive packets over UDP
const IPAddress destination(192, 168, 50, 255);
const unsigned int rxport = 54321;          // remote port to receive OSC
const unsigned int txport = 12345;        // local port to listen for OSC packets (actually not used 

void setup() {
  // initialize serial communication 
  // over the USB wire back to our computer
  Serial.begin( 9600 );
  while(!Serial) ;

  // define which pins in our sketch 
  // will be used as inputs and which as outputs
  pinMode(A2, INPUT);
  pinMode(A3, INPUT);
  pinMode(A4, INPUT);

  // connect to existing wifi access point as client
  if( wifi_connect_as_client(WIFI_SSID, WIFI_PASSWORD) ) {
    // print debugging information
    wifi_print_mode();
    wifi_print_ip(); // print our known ip address
  } else {
    Serial.print("Failed to connect to wifi ");
    Serial.print( WIFI_SSID );
    Serial.println();
  }

  Udp.begin(rxport);
  Serial.print("Listening on port ");
  Serial.println(rxport);
}

void debug_sensor_readings() {
  Serial.print( reading1 );
  Serial.print(", ");
  Serial.print( reading2 );
  Serial.print(", ");
  Serial.print( reading3 );
  Serial.print(", ");
  Serial.print( threshold );
  Serial.println();
}

void loop() {
  // read the values of the three analog sensors
  reading1 = analogRead(A2);
  reading2 = analogRead(A3);
  reading3 = analogRead(A4);

  // these two lines craft the message (with an address and a parameter)
  OSCMessage out("/sensor/one/luis");
  out.add( reading1 );

  // these 4 lines that follow send out the message
  Udp.beginPacket(destination, txport);
  out.send(Udp);
  Udp.endPacket();
  out.empty();

  delay(refresh_rate); // this is our refresh rate is in milliseconds 1 sec = 1000 ms (1000 / 200 = 5)
}