File content as of revision 0:3f38d4693786:

#include "mbed.h"
#include "rtos.h"
#include "EthernetInterface.h"

AnalogIn pot(A0);
PwmOut motor(D7);
PwmOut motor1(D6);
Serial pc(USBTX, USBRX);
EthernetInterface eth;

Thread pot;
Thread motor;
Thread rede;
Thread broadcast;  

const int ECHO_SERVER_PORT = 7;
const char* ECHO_SERVER_ADDRESS = "100.43.2.200";
const int BROADCAST_PORT = 58083;

bool conectado = false;

void pot_thread() {
    const int potenciometro;
    while (true) {
        potenciometro = pot.read();
        pc.printf("Pot Thread: %f \n", potenciometro);
        
        //Thread::wait(100);
    }
}
void pwm_thread() {
    motor.period(0.020);
    motor1.period(0.020);
    while (true) {        
        pc.printf("PWM Thread ");
        motor.pulsewidth(pot.read()); 
        motor1.pulsewidth(pot.read()); 
        //Thread::wait(100);
    }
}

void lan_thread() {
printf("\nServer IP Address is %s\n", eth.getIPAddress());

    TCPSocketServer server;
    server.bind(ECHO_SERVER_PORT);
    server.listen();

    while (true) {
        printf("\nWait for new connection...\n");
        TCPSocketConnection client;
        server.accept(client);
        client.set_blocking(false, 1500); // Timeout after (1.5)s

        conectado = true;
        printf("\nConnection from: %s\n", client.get_address());
        char buffer[256];
        while (true) {
            int n = client.receive(buffer, sizeof(buffer));
            if (n <= 0) break;

            // print received message to terminal
            buffer[n] = '\0';
            printf("Received message from Client :'%s'\n",buffer);

            int pos =  buffer[8] - '0';

            if(pos == 1)setpoint = 20;
            else if(pos == 2)setpoint = 35;
            else if(pos == 3)setpoint = 50;
            printf("Setpoint: %d\n", setpoint);

            m_ref.lock();
            // ref = atof(buffer);
            sprintf (buffer, "%s", client.get_address());
            m_ref.unlock();

            m_ref.lock();
            sprintf (buffer, "%s", client.get_address());
            m_ref.unlock();

            // print sending message to terminal
            printf("Sending message to Client: '%s'\n",buffer);

            // Echo received message back to client
            //client.send_all(buffer, n);
           // if (n <= 0) break;
           memset(buffer,0,256);
        }

        client.close();
    }
}

void udp_broadcast(){
    UDPSocket sock;
    sock.init();
    sock.set_broadcasting();

    Endpoint broadcast;
    broadcast.set_address("255.255.255.255", BROADCAST_PORT);

    char out_buffer[] = "diego";

    while (!conectado) {
        printf("Broadcasting...\n");
        sock.sendTo(broadcast, out_buffer, sizeof(out_buffer));
        Thread::wait(1000);
    }
    printf("Broadcast finalizado!\n");
    }

int main() {
    pc.baud(115200);
        //inicializa o módulo ethernet
    eth.init();
    eth.connect();
    
    pot.start(pot_thread);
    motor.start(pwm_thread);
    rede.start(lan_thread);
    broadcast.start(udp_broadcast);
    
    while (true) {
        //Thread::wait(500);
    }
}