Hello.
I would like to send data from Processing to ESP32 ( a wifi module plugged in a Arduino)
The Processing program is
/**
* oscP5sendreceive by andreas schlegel
* example shows how to send and receive osc messages.
* oscP5 website at http://www.sojamo.de/oscP5
*/
import oscP5.*;
import netP5.*;
OscP5 oscP5;
NetAddress myRemoteLocation;
void setup() {
size(400,400);
frameRate(25);
/* start oscP5, listening for incoming messages at port 12000 */
oscP5 = new OscP5(this,12000);
/* myRemoteLocation is a NetAddress. a NetAddress takes 2 parameters,
* an ip address and a port number. myRemoteLocation is used as parameter in
* oscP5.send() when sending osc packets to another computer, device,
* application. usage see below. for testing purposes the listening port
* and the port of the remote location address are the same, hence you will
* send messages back to this sketch.
*/
myRemoteLocation = new NetAddress("127.0.0.1",12000);
}
void draw() {
background(0);
}
void mousePressed() {
/* in the following different ways of creating osc messages are shown by example */
OscMessage myMessage = new OscMessage("/test");
myMessage.add(123); /* add an int to the osc message */
/* send the message */
oscP5.send(myMessage, myRemoteLocation);
}
/* incoming osc message are forwarded to the oscEvent method. */
void oscEvent(OscMessage theOscMessage) {
/* print the address pattern and the typetag of the received OscMessage */
print("### received an osc message.");
print(" addrpattern: "+theOscMessage.addrPattern());
println(" typetag: "+theOscMessage.typetag());
}
The Arduino program to receive OSC data is this one, but I can’ t use it
#include "Arduino.h"
#include "WiFi.h"
#include <OSCMessage.h>
WiFiUDP Udp; // A UDP instance to let us send and receive packets over UDP
//int LED_BUILTIN = 2;
// Options
int update_rate = 16;
// Network settings
char ssid[] = "Iphone de ben"; // your network SSID (name)
char pass[] = "cacaprout"; // your network password
unsigned int localPort = 8001; // local port to listen for OSC packets
void setup() {
pinMode(LED_BUILTIN, OUTPUT);
/* setup wifi */
WiFi.begin(ssid, pass);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print ( " bad ");
}
Serial.print ( " good ");
Udp.begin(localPort);
}
void ledtoggle(OSCMessage & msg) {
switch (msg.getInt(0)) {
case 0:
digitalWrite(LED_BUILTIN, LOW);
break;
case 1:
digitalWrite(LED_BUILTIN, HIGH);
break;
}
}
void receiveMessage() {
OSCMessage inmsg;
int size = Udp.parsePacket();
if (size > 0) {
while (size--) {
inmsg.fill(Udp.read());
Serial.print ( " a ");
}
if (!inmsg.hasError()) {
inmsg.dispatch("/led", ledtoggle);
Serial.print ( " b ");
}
else
{ auto error = inmsg.getError();
Serial.print ( " c ");
}
}
}
void loop() {
receiveMessage();
// digitalWrite(LED_BUILTIN, HIGH);
delay(update_rate);
// digitalWrite(LED_BUILTIN, LOW);
}
Thank you 
.