A system example demonstrating how to build a secure cloud-connected IoT gateway allowing access and control of the multiple wireless nodes. The reference design utilizes the TM4C12x: TM4C123x: TRF7970A and RF430CL330H: as well as the SimpleLink™ Wi-Fi® CC3100: Bluetooth® low energy CC2650 and Sub-1GHz CC1310 wireless microcontrollers (MCUs) development hardware and software suite for ease of development and quick time to market.