In one embodiment, a graphical user interface (GUI) is established for an Internet of Things (IoT) integrated developer environment (IDE) with one or more visual developer tools. Real and/or virtual nodes are provided within the IoT IDE having connectivity and functionality, and a plurality are connected as a logical and executable graph for a flow-based programming framework virtualized across one or more IoT layers. The nodes may then be programmed based on respective connectivity and functionality, such that the logical and executable graph has real and/or virtual inputs, real and/or virtual processing functions, and real and/or virtual actions. Upon deploying the node programming to one or more corresponding platform emulators configured to execute the node programming, the logical and executable graph may be simulated by executing the node programming to produce the one or more actions based on the one or more inputs and the one or more processing functions.