Austin Blackstone
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
- Make sure you have both the wifi device and the computer running the server on the same network / wifi router.
- Change the hard coded IP in the microcontroller code to match that of the laptop running the python server.
- Run the python2 script below on the computer
- 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).
- 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()
Revision 14:6d58d3855feb, committed 2014-05-26
- Comitter:
- kishino
- Date:
- Mon May 26 06:28:29 2014 +0000
- Parent:
- 13:d4a21765a203
- Child:
- 15:abc12b228291
- Commit message:
- Created demo application for Xively using the SNIC with TypeYD.
Changed in this revision
--- a/EthernetInterface.lib Fri Nov 08 16:57:17 2013 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/mbed_official/code/EthernetInterface/#cba86db5ab96
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SNICInterface.lib Mon May 26 06:28:29 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/teams/murata/code/SNICInterface/#6a0ba999597d
--- a/libxively.lib Fri Nov 08 16:57:17 2013 +0000 +++ b/libxively.lib Mon May 26 06:28:29 2014 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/xively/code/libxively/#4ce6299f7535 +http://mbed.org/users/xively/code/libxively/#1208875310d3
--- a/main.cpp Fri Nov 08 16:57:17 2013 +0000
+++ b/main.cpp Mon May 26 06:28:29 2014 +0000
@@ -1,8 +1,8 @@
#include "mbed.h"
-#include "EthernetInterface.h"
+#include "SNIC_WifiInterface.h"
-#define XI_FEED_ID 128488 // set Xively Feed ID (numerical, no quoutes)
-#define XI_API_KEY "T4KXAH_dasgw1PWBPc3fdsfsdgsdy-dUc4ND0g" // set Xively API key (double-quoted string)
+#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"
@@ -19,30 +19,61 @@
#include "logo.h"
+#if 0
+#define DEMO_AP_SSID "HWD11_E8088BD5E3A8"
+#define DEMO_AP_SECURITY_TYPE e_SEC_WPA2_AES
+#define DEMO_AP_SECUTIRY_KEY "aArGrg303DG5HA9"
+#define DEMO_AP_SECUTIRY_KEY_LEN 15
+#else
+//#define DEMO_AP_SSID "muRata1"
+//#define DEMO_AP_SECURITY_TYPE e_SEC_WPA2_AES
+//#define DEMO_AP_SECUTIRY_KEY "12345678"
+//#define DEMO_AP_SECUTIRY_KEY_LEN 8
+
+#define DEMO_AP_SSID "Test"
+#define DEMO_AP_SECURITY_TYPE e_SEC_WPA2_AES
+#define DEMO_AP_SECUTIRY_KEY "eightspot"
+#define DEMO_AP_SECUTIRY_KEY_LEN 9
+#endif
+/** Wi-Fi SNIC UART Interface*/
+C_SNIC_WifiInterface mSNICwifi( p9, p10, NC, NC, p30 );
+Serial pc(USBTX, USBRX);
+
int main() {
+ pc.baud( 115200 );
+ printf("main\r\n");
lcd_print_xively_logo();
- EthernetInterface eth;
- int s = eth.init(); //Use DHCP
+ // Initialize Wi-Fi interface
+ int s = mSNICwifi.init();
- if( s != NULL )
+ lcd_printf("init();\r\n");
+
+ if( s != 0 )
{
lcd_printf( "Could not initialise. Will halt!\n" );
- exit( 0 );
+ return -1;
}
- s = eth.connect();
+ wait(0.5);
+ mSNICwifi.disconnect();
+ lcd_printf("disconnect();\r\n");
- if( s != NULL )
+ wait(0.5);
+ // Connect AP
+ s = 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");
+ if( s != 0 )
{
lcd_printf( "Could not connect. Will halt!\n" );
- exit( 0 );
+ return -1;
}
- else
- {
- lcd_printf( "IP: %s\n", eth.getIPAddress() );
- }
-
+ wait(0.5);
+
xi_feed_t feed;
memset( &feed, NULL, sizeof( xi_feed_t ) );
@@ -112,6 +143,6 @@
xi_feed_update( xi_context, &feed );
lcd_printf( "done...\n" );
- wait( 15.0 );
+ wait( 1.0 );
}
}
--- a/mbed-rtos.lib Fri Nov 08 16:57:17 2013 +0000 +++ b/mbed-rtos.lib Mon May 26 06:28:29 2014 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/mbed_official/code/mbed-rtos/#ee87e782d34f +http://mbed.org/users/mbed_official/code/mbed-rtos/#5dfe422a963d
--- a/mbed.bld Fri Nov 08 16:57:17 2013 +0000 +++ b/mbed.bld Mon May 26 06:28:29 2014 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/mbed_official/code/mbed/builds/a9913a65894f \ No newline at end of file +http://mbed.org/users/mbed_official/code/mbed/builds/8a40adfe8776 \ No newline at end of file