Much like its predecessor the Hive Nano v2 is simple but sleek in design, its casing is slightly larger at 9.5 x 9.5 x 2.5cm. The hub has 3 LEDs on the front right above a Hive logo. Along the top side of the hub there is a RJ-45 Ethernet port, a 9v AC plug, a small reset button and a mystery unused USB socket covered by a small blanking plate.
Inside the Hub
The inside of the Nano v2 is slightly more complex than the v1 with a PCB hosting 2 smaller wireless daughter cards. There are again a couple of pin headers which may be used for console or debug connectivity. The following are a few photos of the inside of the hub:
List of Chips
While opened up I have also taken an inventory of the chips in the Nano v2. I have also attempted to look up the data sheets for each chip to see if I could work out any further information.
|Chip Model / Serial Numbers
|Samsung SDRAM (4Gb E-die DDR3L SDRAM)
|Texas Instruments (MPU ARM® Cortex®-A8 32‐Bit RISC Processor)
|ZigBee Sigma (Serial interface modem SoC)
|Wireless RFMD (Front End Module (FEM) for WiFi and ZigBee applications.
On the rear of the circuit board.
For the Nano v2 there appears again to be a spare 4 pin connector on the circuit board (which I have soldiered a header block onto), but by using the same cable and pin configuration as the Nano V1 above I have, as of yet, not been able to achieve any results. There is also another unused 10 pin header on the Nano 2’s circuit board (see photos above) but again I have not been able to work anything out.
Aside from the 4-pin header there is another, currently redundant, component of interest… a unused female USB-A port hidden by a small plastic cover, it is not mentioned in any of the Hive documentation but is presumedly there for possible future connectivity, data logging, debugging or firmware updates? I have tried plugging a cable into it and it does provide power which at the very least could be used to power or charge another USB device.