Version 3.13 July 20, 2018 1. Change timer for defaulting WiFi to 1 hour 2. Force to use AP only mode if the WiFi module cannot join a valid WiFi network in STA only or AP-STA mode. Version 3.10 Oct 17, 2017 1. Fix a bug which prevents the build-in Wi-Fi module working in STA only mode. 2. If the access point for the STA mode is not valid, turn on build-in Wi-Fi's access point automatically.