WINC3400 AWS RSA Example - SAMD21 XPlained Pro Documentation

Introduction

This example demonstrates the use of the Wi-Fi module with the SAMD21 Xplained Pro board to connect to AWS .
It uses the following hardware:

• the SAMD21 Xplained Pro.
• the WINC3400 on EXT1.

Main Files

• main.c : Initialize the Wi-Fi module and connect to server using SSL.

Usage

1. The connection parameters can be configured in main.h.

   *    #define MAIN_WLAN_SSID                  "DEMO_AP"
   *    #define MAIN_WLAN_AUTH                  M2M_WIFI_SEC_WPA_PSK
   *    #define MAIN_WLAN_PSK                   "12345678"
   * 

2. Build the program and download it into the board.
3. On the computer, open and configure a terminal application as the follows.

   *    Baud Rate : 115200
   *    Data : 8bit
   *    Parity bit : none
   *    Stop bit : 1bit
   *    Flow control : none
   * 

4. Start the application.
5. The application uses AWS_IOT_ALPN_ENABLED macro to enable ALPN connection on port 443 with an AWS IOT MQTT server
6. Disable AWS_IOT_ALPN_ENABLED macro in the properties to disable ALPN(Application Layer Protocol Negotiation)

   Warning

   * -- AWS IoT Demo --
   * -- SAMXXX_XPLAINED_PRO --
   * -- Compiled: Jun xx xxxx xx:xx:xx --
   * (APP)(INFO)Chip ID 3400d2
   * (APP)(INFO)Curr driver ver: x.x.x
   * (APP)(INFO)Curr driver HIF Level: (2) x.x
   * (APP)(INFO)Fw HIF: 8104
   * (APP)(INFO)Firmware HIF (2) : x.x
   * (APP)(INFO)Firmware ver   : x.x.x
   * (APP)(INFO)Firmware Build <Month> DD YYYY Time xx:xx:xx
   * (APP)(INFO)Ota HIF: 0000
   * (APP)(INFO)No valid Ota image
   * wifi_cb: M2M_WIFI_RESP_CON_STATE_CHANGED: CONNECTED
   * wifi_cb: M2M_WIFI_REQ_DHCP_CONF: IP is xxx.xxx.xxx.xxx
   * (APP)(ERR)[hif_isr][674]Socket callback is not registered
   * (APP)(ERR)[hif_isr][705](hif) host app didn't set RX Done <2><4A>
   * Received time
   * Connecting...Host IP is x.xx.xx.xxx
   * Host Name is xxxxxxxxxxxxx-xxx.xxx.xx-xxxx-x.amazonaws.com
   *
   * ALPN mode enabled
   * (APP)(INFO)Socket 0 session ID = 1
   * Successfully connected.
   * Negotiated Amazon MQTT.
   * Subscribing...Subscription success
   * Subscribe callback
   * WINC3400_IOT/sub
   * {
   *   "message": "Hello from AWS IoT console"
   * }
   * For using AWS connection, the AWS RSA certificate must be installed.
   * Download the RSA certificate using the firmware upgrade. (Refer to WINC3400 Software User Guide.)
   * 

Compilation Information

This software was written for the GNU GCC compiler using Atmel Studio 6.2 Other compilers are not guaranteed to work.

Contact Information

For further information, visit Microchip.