A new project on Indiegogo aims to improve home security by turning old iPhones and Android devices into security cameras and adding extra home sensors that can monitor certain activities. DON’T MISS: Watch a crazy iOS bug cause iPhones to crash just by receiving a text message Presence Security, available for preorder starting at $179 on Indiegogo, comes with a variety of wireless sensors that can be managed directly from a mobile app, including two entry sensors, a motion sensor, a gateway sensor and a window sticker sensor. The number of sensors can be further increased by selecting a more expensive package that can include water, touch and temperature sensors, and extra sensors should be added to Presence systems in

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