====== Gateway Node Hardware ======

Requirements for the gateway node hardware:

  * Run from wall power
  * Persistent state
  * Discover network link to the Internet
  * Internet connectivity via WiFi or cellular (through external modules if needed)
  * Receive system configuration data from the Internet and self configure (zero touch from fresh powerup)
  * I/O sufficient to allow for double duty as a data collection node
  * Linux OS to allow flexibility in feature set
  * Local storage sufficient to buffer data collection in the event of link outages

===== Hardware Comparison =====


^ Board ^ Cost ^ RAM ^ Flash ^ Net ^ IO ^ Dev Tools ^
| [[https://www.sparkfun.com/products/14643|Raspberry Pi 3 B+]] | $35.00 | 1GB | microSD | 802.11 | 4xUSBA \\ 27 GPIO \\ I2C \\ SPI \\ UART \\ | RPI Linux |