Onion IoT Hub community recommendations
I am building out an IoT Hub around the Onion. Right now it will have these components:
-POE + Data (Ethernet obviously)
-Omega Onion 2S+ (SMT Version)
-SD Card holder
-Temperature / Humidity / Accelerometer Sensors connected over i2C
-4 port USB Hub. 2 External USB connectors, 2 internal USB connectors
-Maybe header pin adapter for optional 3G modem SIM5320A.
Anything else I should add? Maybe placeholder for xBee on the serial line? I made my own FCC certified 915MHz radio so I may add that on there or keep a place holder there for future development but what would the community want in a small IoT Hub?