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ESP8266 SDK API Guide Version 1.3.0 Espressif Systems IOT Team Copyright (c) 2015 Disclaimer and Copyright Notice Information in this document, including URL references, is subject to change without notice. THIS DOCUMENT IS PROVIDED AS IS WITH NO WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR ANY PARTICULAR PURPOSE, OR ANY WARRANTY OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE. All liability, including liability for infringement of any proprietary rights, relating to u f information in this document is disclaimed. No licenses express or implied, by estoppel or otherwise, to any intellectual property rights are granted herein. The Wi-Fi Alliance Member Logo is a trademark of the Wi-Fi Alliance. All trade names, trademarks and registered trademarks mentioned in this document are property of their respective owners, and are hereby acknowledged. Copyright © 2015 Espressif Systems Inc. . Espressif Systems Confidential 2/162 Friday, Aug 7, 2015 Table of Content 1. Preambles 13 2. Overview 14 3. Application Programming Interface (APIs)15 3.1. Software Timer 15 1. os_timer_arm 15 2. os_timer_disarm 16 3. os_timer_setfn 16 4.