Ben Zhang / Mbed 2 deprecated CC3000_demo

Simple Demo that gets a webpage

Dependencies:   HTTPClient cc3000_hostdriver_mbedsocket mbed

Fork of EECS149_email_notifier by Antonio Iannopollo

main.cpp@13:26905142e97b, 2014-10-19 (annotated)

Committer:
nebgnahz
Date:
Sun Oct 19 07:05:29 2014 +0000
Revision:
13:26905142e97b
Parent:
12:9e383f611c45
Child:
14:efd42910791b
a simple demo now

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nebgnahz 13:26905142e97b 1 /**
nebgnahz 13:26905142e97b 2 * \brief CS294-84 demo
nebgnahz 13:26905142e97b 3 * \author Ben Zhang, Antonio Iannopollo
nebgnahz 13:26905142e97b 4 *
nebgnahz 13:26905142e97b 5 * This sampel code illustrates how to connect the mbed KL25Z platform to internet
nebgnahz 13:26905142e97b 6 * thorugh the CC3000 wifi breakout board (http://www.adafruit.com/product/1469).
nebgnahz 13:26905142e97b 7 * Connections between the KL25Z and the CC3000 are made according to the
nebgnahz 13:26905142e97b 8 * guide at https://learn.adafruit.com/adafruit-cc3000-wifi -- KL25Z and arduino
nebgnahz 13:26905142e97b 9 * UNO are pin to pin compatible --
nebgnahz 13:26905142e97b 10 *
nebgnahz 13:26905142e97b 11 * This application uses the following libraries:
nebgnahz 13:26905142e97b 12 * - cc3000_hostdriver_mbedsocket
nebgnahz 13:26905142e97b 13 * (http://developer.mbed.org/users/Kojto/code/cc3000_hostdriver_mbedsocket/)
nebgnahz 13:26905142e97b 14 * - HTTPClient (http://developer.mbed.org/users/donatien/code/HTTPClient/)
nebgnahz 13:26905142e97b 15 */
nebgnahz 13:26905142e97b 16
Kojto 0:fe1445e57b7d 17 #include "mbed.h"
Kojto 0:fe1445e57b7d 18 #include "cc3000.h"
Kojto 0:fe1445e57b7d 19 #include "HTTPClient.h"
Kojto 0:fe1445e57b7d 20
nebgnahz 13:26905142e97b 21 // KL25Z wifi connection
nebgnahz 13:26905142e97b 22 // we need to define connection pins for:
nebgnahz 13:26905142e97b 23 // - IRQ => (pin D3)
nebgnahz 13:26905142e97b 24 // - Enable => (pin D5)
nebgnahz 13:26905142e97b 25 // - SPI CS => (pin D10)
nebgnahz 13:26905142e97b 26 // - SPI MOSI => (pin D11)
nebgnahz 13:26905142e97b 27 // - SPI MISO => (pin D12)
nebgnahz 13:26905142e97b 28 // - SPI CLK => (pin D13)
nebgnahz 13:26905142e97b 29 // plus wifi network SSID, password, security level and smart-configuration flag.
nebgnahz 13:26905142e97b 30 mbed_cc3000::cc3000 wifi(D3, D5, D10, SPI(D11, D12, D13), "SSID", "PASSWORD", WPA2, false);
antoni0 10:1804a9dbaee0 31
nebgnahz 13:26905142e97b 32 // create an http instance
nebgnahz 13:26905142e97b 33 HTTPClient http;
Kojto 0:fe1445e57b7d 34
nebgnahz 13:26905142e97b 35 // str is used to hold the response data
nebgnahz 13:26905142e97b 36 char str[512];
antoni0 7:47cd0d3d5e4d 37
nebgnahz 13:26905142e97b 38 // setup the serial connection, and LEDs
nebgnahz 13:26905142e97b 39 Serial pc(USBTX, USBRX);
antoni0 7:47cd0d3d5e4d 40 DigitalOut led_red(LED_RED);
nebgnahz 13:26905142e97b 41 DigitalOut led_green(LED_GREEN);
antoni0 7:47cd0d3d5e4d 42
nebgnahz 13:26905142e97b 43 int main()
nebgnahz 13:26905142e97b 44 {
nebgnahz 13:26905142e97b 45 // by default, it's red
nebgnahz 13:26905142e97b 46 led_red = 0;
antoni0 8:594cb3bc6f0f 47 led_green = 1;
Kojto 0:fe1445e57b7d 48
nebgnahz 13:26905142e97b 49 // print message to indicate the program has started
nebgnahz 13:26905142e97b 50 pc.printf("CC3000 Sample Program\r\n");
Kojto 4:b61a6b6190be 51 wifi.init();
nebgnahz 13:26905142e97b 52
antoni0 7:47cd0d3d5e4d 53 while(1) {
nebgnahz 13:26905142e97b 54 // continuosly check connection status
antoni0 7:47cd0d3d5e4d 55 if(wifi.is_connected() == false) {
nebgnahz 13:26905142e97b 56 // try to connect
antoni0 7:47cd0d3d5e4d 57 if (wifi.connect() == -1) {
antoni0 7:47cd0d3d5e4d 58 printf("Failed to connect. Please verify connection details and try again. \r\n");
antoni0 7:47cd0d3d5e4d 59 } else {
nebgnahz 13:26905142e97b 60 printf("IP address: %s \r\n", wifi.getIPAddress());
nebgnahz 13:26905142e97b 61
antoni0 10:1804a9dbaee0 62 //once connected, turn green LED on and red LED off
antoni0 8:594cb3bc6f0f 63 led_red = 1;
nebgnahz 13:26905142e97b 64 led_green = 0;
antoni0 7:47cd0d3d5e4d 65 }
antoni0 7:47cd0d3d5e4d 66 } else {
nebgnahz 13:26905142e97b 67 int ret = http.get("http://www.eecs.berkeley.edu/~benzh/hello.txt", str, 128);
antoni0 7:47cd0d3d5e4d 68 if (!ret) {
nebgnahz 13:26905142e97b 69 printf("Page fetched successfully - read %d characters\r\n", strlen(str));
nebgnahz 13:26905142e97b 70 printf("Result: %s\r\n", str);
antoni0 7:47cd0d3d5e4d 71 } else {
nebgnahz 13:26905142e97b 72 printf("Error - ret = %d - HTTP return code = %d\r\n", ret, http.getHTTPResponseCode());
antoni0 7:47cd0d3d5e4d 73 }
antoni0 7:47cd0d3d5e4d 74 }
nebgnahz 13:26905142e97b 75 // repeat after waiting for 1 sec
nebgnahz 13:26905142e97b 76 wait(1.0);
Kojto 0:fe1445e57b7d 77 }
nebgnahz 13:26905142e97b 78 }