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AN5305

ATWINC15x0/ATWINC3400 Wi-Fi® Network Controller

Software Programming Guide

Introduction

This software programming guide describes the use of the ATWINC15x0/ATWINC3400 Wi-Fi Network Controller to

build state-of-the-art Internet of Things (IoT) applications.

The following topics will be covered:

• How examples are organized

• Target board information

• Instruction for each example

Note: All the listed examples and folder structure/files are similar for both WINC15x0 and ATWINC3400. The

diagrams and console logs in this document refer to ATWINC15x0.

Prerequisites

• Hardware Prerequisites:

– SAM D21 Xplained Pro Evaluation Kit

– ATWINC15x0 extension (For more details, refer to ATWINC15x0 user guide)

– ATWINC3400 extension (For more details, refer to ATWINC3400 user guide)

– IO1 extension

– Micro-USB Cable (Micro-A/Micro-B)

• Software Prerequisites:

– Atmel Studio 7.0 (For more details, refer to )user guide

– Wi-Fi IoT Examples (for more details, refer to )application notes

Figure 1. SAM D21 XSTK Board Demo Setup

Table of Contents

Introduction.....................................................................................................................................................1

Prerequisites.................................................................................................................................................. 1

1. How the Examples are Organized.......................................................................................................... 4

2. Source Organization............................................................................................................................... 5

3. Basic Operation Code............................................................................................................................. 6

3.1. Basic Examples............................................................................................................................6

4. Protocol Examples................................................................................................................................ 28

4.1. UDP Client..................................................................................................................................28

4.2. UDP Server................................................................................................................................ 29

4.3. TCP Client.................................................................................................................................. 31

4.4. TCP Server.................................................................................................................................32

4.5. NTP Time Client......................................................................................................................... 34

4.6. SMTP Send Email...................................................................................................................... 36

5. Advanced Examples............................................................................................................................. 39

5.1. Exosite Cloud............................................................................................................................. 39

5.2. Growl Notification....................................................................................................................... 43

5.3. HTTP File Downloader............................................................................................................... 45

5.4. IoT Temperature and Qtouch Sensor Demo.............................................................................. 47

5.5. MQTT Chat.................................................................................................................................49

5.6. OTA Firmware Upgrade............................................................................................................. 52

5.7. PubNub Cloud............................................................................................................................ 55

5.8. Serial Bridge...............................................................................................................................57

5.9. SSL Client Connection............................................................................................................... 57

5.10. Weather Client............................................................................................................................59

5.11. Wi-Fi Serial.................................................................................................................................61

5.12. ALPN Client Connection.............................................................................................................63

6. Reference Documentation.................................................................................................................... 66

7. Document Revision History...................................................................................................................67

The Microchip Website.................................................................................................................................68

Product Change Notification Service............................................................................................................68

Customer Support........................................................................................................................................ 68

Microchip Devices Code Protection Feature................................................................................................ 68

Legal Notice................................................................................................................................................. 69

Trademarks.................................................................................................................................................. 69

Quality Management System....................................................................................................................... 70

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