1. INTRODUCTION 7 .....................................................................................................................................
1.1. GENERAL OVERVIEW 7 ...........................................................................................................................
1.1.1. Features 9
1.1.2. Specifications 9 .............................................................................................................................
1.1.3. Applications 11
1.2. HARDWARE OVERVIEW 12 .....................................................................................................................
1.2.1. Pin Definition 12 ...........................................................................................................................
1.2.2. Electrical Characteristics 14 ...........................................................................................................
1.2.3. Power Consumption 14 .................................................................................................................
1.2.4. Package Footprint 15 .....................................................................................................................
1.2.5. Hardware Development Kit 16 ......................................................................................................
1.2.6. ESP8266EX Modules (WROOM) 18 ..............................................................................................
1.3. APPLICATIONS USING ESP8266EX 20 ......................................................................................................
1.3.1. UART Connector (as in Fig. 4 Demo Board) 20 ............................................................................
1.3.2. Sensor Application (as in Fig. 5 USB Sensor Demo) 20 .................................................................
1.3.3. Smart Light Application (as in Fig. 6 Smart Light Demo) 21 ...........................................................
1.3.4. Wi-Fi Smart Plug Application 23 ....................................................................................................
2. SOFTWARE FEATURES 24 ............................................................................................................................
2.1. WIRELESS NETWORKING 24 ....................................................................................................................
2.1.1. SoftAP Mode 24
2.1.2. Station Mode 25
2.1.3. SoftAP + Station Mode 25 .............................................................................................................
2.2. PASS-THROUGH CONNECTION 26 ...........................................................................................................
2.3. UART FRAMES 26 .................................................................................................................................
2.4. ENCRYPTION 27 ....................................................................................................................................
2.5. LOW POWER OPERATION 28 ..................................................................................................................
2.6. FIRMWARE UPDATER 28 .........................................................................................................................
3. ESPRESSIF CLOUD SERVER 29 .....................................................................................................................
3.1. GUIDE TO USING ESPRESSIF CLOUD SERVER WEBSITE 29 ............................................................................
3.1.1. Device Development 31 ...............................................................................................................
3.1.2. Product Management 35 ...............................................................................................................
3.2. GUIDE TO USING ESP8266EX MODULES 36 ............................................................................................
3.2.1. Software Debugging Tools 36 .......................................................................................................
3.2.2. Network Connections 36 ..............................................................................................................
3.2.3. Default Connection Parameters 36 ................................................................................................
3.3. APPLICATION EXAMPLES 37 .....................................................................................................................
3.3.1. Wi-Fi Remote Control 37 ...............................................................................................................
3.3.2. Wi-Fi Remote Access 37 ................................................................................................................