Difference between revisions of "Node Specifications"

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[[File:Node_electronics.png|300px|thumb|right|The electronics of the City of Things experiment nodes]]
 
There is currently only a single type of node available in the City of Things testbed. It consists of of an apu2c4 embedded pc with two WiFi interfaces and a number of additional radio modules that are connected through USB. It supports the following wireless technologies out of the box:
 
There is currently only a single type of node available in the City of Things testbed. It consists of of an apu2c4 embedded pc with two WiFi interfaces and a number of additional radio modules that are connected through USB. It supports the following wireless technologies out of the box:
  
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== Node Hardware ==
 
== Node Hardware ==
[[File:Node_electronics.png|300px|thumb|right|The electronics of the City of Things experiment nodes]]
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Each node uses a <b>[http://pcengines.ch/apu2c4.htm PCEngines apu2c4]</b> board as a central controller.
 
Each node uses a <b>[http://pcengines.ch/apu2c4.htm PCEngines apu2c4]</b> board as a central controller.

Revision as of 14:47, 30 January 2018

The electronics of the City of Things experiment nodes

There is currently only a single type of node available in the City of Things testbed. It consists of of an apu2c4 embedded pc with two WiFi interfaces and a number of additional radio modules that are connected through USB. It supports the following wireless technologies out of the box:

  • WiFi 802.11ac on 2.4 GHz and 5GHz
  • Bluetooth 4.0 (with full BLE support)
  • IEEE 802.15.4 on 2.4 GHz and 868MHz
  • Dash7 on 433MHz and 868MHz
  • LoRaWAN on 868MHz (client only)

All these components are housed in a waterproof metal box to protect them from the elements. The antenna's of the node are housed in a separate (plastic) enclosure and the two are connected by low-loss coax cables.


Node Hardware

Each node uses a PCEngines apu2c4 board as a central controller. This board is equipped with the following hardware:

  • CPU: AMD GX-412TC 1GHz Quad-core CPU (onboard)
  • Memory: 4GB DDR3-1333 MHz (onboard)
  • Storage: 240GB Samsung EVO 850 SSD (mSATA)

The apu2c4 is also equipped with the following WiFi cards:

Compex WLE900VX
  • Atheros (ath10k) QCA9880 Chipset
  • Supports IEEE 802.11 a/b/g/n/ac
  • Operates on both 2.4GHz and 5GHz
  • Connected to three dual-band antennas (3x3 MIMO is supported).
Intel 7260 WiFi-AC + Bluetooth
  • Intel 7260 Chipset
  • Supports WiFi a/b/g/n/ac and Bluetooth 4.0
  • Operates on both 2.4GHz and 5GHz (client mode only)
  • Connected to two dual-band antennas (2x2 MIMO is supported).

Connected USB Devices

OpenUSB

EZR USB

WFM32GG+RFM95W

Antennas