Austin Blackstone / Mbed 2 deprecated murataTCPDemo

demo of Murata wifi chip as TCP client.

Dependencies:   SNICInterface mbed-rtos mbed

Fork of murataDemo by Austin Blackstone

Intro

this program demonstrates how to use TCP on the Murata Wifi chip. It will connect to a server and send a message, the server will then send a reply. The reply will be printed out to the terminal on the microcontroller.

Instructions

  1. Make sure you have both the wifi device and the computer running the server on the same network / wifi router.
  2. Change the hard coded IP in the microcontroller code to match that of the laptop running the python server.
  3. Run the python2 script below on the computer
  4. Have a console hooked up to the microcontroller and watch as messages are sent back and forth between the server (python) and the client (murata).
  5. Run the microcontroller code on the device.

For ease of use numbers have been appended to the end of the messages being sent back and forth.

Python Server

Please run this python2.7 code on your computer. Make sure to change the IP Address in the microcontroller code to match the IP of your computer.

import socket
 
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('', 7))
s.listen(1)
 
x = 0
while True:
    conn, addr = s.accept()
    print 'Connected b'TCP data from server: 'y', addr
    while True:
        # receive data from board
        data = conn.recv(1024)
        
        # check received data
        if not data: 
            break
        
        # print received data 
        print("TCP data from microcontroller: '"+data+"'")
        
        # send data to board with counter to differentiate messages
        conn.sendall("HelloFromPython!: "+str(x)+"\n\r")
        x+=1

    # close the port
    conn.close()

main.cpp

Committer:
kishino
Date:
2014-09-12
Revision:
24:3d150ff59276
Parent:
23:39cf9f03b076
Child:
25:39099b3b173f

File content as of revision 24:3d150ff59276:

/* Copyright (C) 2014 Murata Manufacturing Co.,Ltd., MIT License
 *  muRata, SWITCH SCIENCE Wi-FI module TypeYD SNIC-UART.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
 * and associated documentation files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or
 * substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
#include "mbed.h"
#include "SNIC_WifiInterface.h"

#define XI_FEED_ID 1056160623 // set Xively Feed ID (numerical, no quoutes)
#define XI_API_KEY "Wg7CfZDrj7VjIIpiYzdDrMow6wdENAOGjkIfQ0fUjJh6DAw2" // set Xively API key (double-quoted string)

#include "app_board_io.h"

#include "xively.h"
#include "xi_err.h"

#include "MMA7660.h"
#include "LM75B.h"
#include "C12832.h"

#if defined(TARGET_LPC1768)
#include "PowerControl/EthernetPowerControl.h"
C12832 lcd(p5, p7, p6, p8, p11);
MMA7660 axl(p28, p27);
LM75B tmp(p28, p27);
#elif defined(TARGET_LPC1549)
C12832 lcd(D11, D13, D12, D7, D10);
MMA7660 axl(SDA, SCL);
LM75B tmp(SDA, SCL);
#endif

#include "logo.h"

#define DEMO_AP_SSID                  "AP_SSID"
#define DEMO_AP_SECURITY_TYPE         e_SEC_WPA2_AES
#define DEMO_AP_SECUTIRY_KEY          "WPA2_PASSPHRASE"
#define DEMO_AP_SECUTIRY_KEY_LEN      15

/** Wi-Fi SNIC UART Interface*/
#if defined(TARGET_LPC1768)
C_SNIC_WifiInterface     mSNICwifi( p9, p10, NC, NC, p30 );
Serial pc(USBTX, USBRX);    /* for DEBUG_PRINT */
#elif defined(TARGET_LPC1549)
C_SNIC_WifiInterface     mSNICwifi( D0, D1, NC, NC, D3 );
Serial pc(P2_12, P2_11);    /* for DEBUG_PRINT */
#endif

int main() {
    
#if defined(TARGET_LPC1768)
    PHY_PowerDown();
#endif
    pc.baud( 115200 );
    DEBUG_PRINT("main\r\n");
    lcd_print_xively_logo();
    
    // Initialize Wi-Fi interface
    int s = mSNICwifi.init();
    
    lcd_printf("init();\r\n");
    
    if( s != 0 )
    {
        lcd_printf( "Could not initialise. Will halt!\n" );        
        return -1;
    }    
    wait(0.5);
    s = mSNICwifi.disconnect();
    lcd_printf("disconnect();\r\n");
    if( s != 0 )
    {
        printf( "disconnect failed\r\n" );        
        return -1;
    }    
    
    wait(0.3);
    // Connect AP
    mSNICwifi.connect( DEMO_AP_SSID
                        , strlen(DEMO_AP_SSID)
                        , DEMO_AP_SECURITY_TYPE
                        , DEMO_AP_SECUTIRY_KEY
                        , DEMO_AP_SECUTIRY_KEY_LEN );
    lcd_printf("connect();\r\n");
    wait(0.5);
    
    lcd_printf("IP Config();\r\n");
    mSNICwifi.setIPConfig( true );
    
    wait(0.5);

    xi_feed_t feed;
    memset( &feed, NULL, sizeof( xi_feed_t ) );
    
    feed.feed_id = XI_FEED_ID;
    feed.datastream_count = 3;
    
    feed.datastreams[0].datapoint_count = 1;
    xi_datastream_t* orientation_datastream = &feed.datastreams[0];
    strcpy( orientation_datastream->datastream_id, "orientation" );
    xi_datapoint_t* current_orientation = &orientation_datastream->datapoints[0];

    feed.datastreams[1].datapoint_count = 1;
    xi_datastream_t* side_rotation_datastream = &feed.datastreams[1];
    strcpy( side_rotation_datastream->datastream_id, "side_rotation" );
    xi_datapoint_t* current_side_rotation = &side_rotation_datastream->datapoints[0];
    
    feed.datastreams[2].datapoint_count = 1;
    xi_datastream_t* temperature_datastream = &feed.datastreams[2];
    strcpy( temperature_datastream->datastream_id, "temperature" );
    xi_datapoint_t* current_temperature = &temperature_datastream->datapoints[0];
    
    // create the cosm library context
    xi_context_t* xi_context
        = xi_create_context( XI_HTTP, XI_API_KEY, feed.feed_id );

    // check if everything works
    if( xi_context == NULL )
    {
        return -1;
    }

    while(1) {
      switch( axl.getSide() ) {
        case MMA7660::Front:
          xi_set_value_str( current_side_rotation, "front" );
          break;
        case MMA7660::Back:
          xi_set_value_str( current_side_rotation, "back" );
          break;
        default:
          xi_set_value_str( current_side_rotation, "unknown" );
          break;
      }
      
      switch( axl.getOrientation() ) {
        case MMA7660::Down:
          xi_set_value_str( current_orientation, "down" );
          break;
        case MMA7660::Up:
           xi_set_value_str( current_orientation, "up" );
           break;
        case MMA7660::Right:
          xi_set_value_str( current_orientation, "right" );
          break;
        case MMA7660::Left:
          xi_set_value_str( current_orientation, "left" );
          break;
        default: 
          xi_set_value_str( current_orientation, "unknown" );
          break;
      }
      
      xi_set_value_f32( current_temperature, tmp.read() );
        
      lcd_printf( "update...\n" );
      xi_feed_update( xi_context, &feed );
      lcd_printf( "done...\n" );
      
      wait( 1.0 );
    }
}