1. IoT
   1. interconnection
      1. of
         1. Uniquely identifiable
            1. embedded-devices
            2. within
            3. the Internet
   2. objects
      1. will have to
         1. use
            1. IPv6
      2. sensors
      3. actuators
   3. will
      1. require
         1. low-power
            1. data
            2. radios
            3. for connection to
            4. the Internet
2. Oscillators
3. Ethernet
   1. Definitions
      1. MAC
         1. Media access control. This is the part of the system which converts a packet from the OS into a stream of bytes to be put on the wire (or fibre). Often interfaces to the host processor over something like PCI Express (for example).
      2. PHY
         1. physical layer - converts a stream of bytes from the MAC into signals on one or more wires or fibres.
      3. MII
         1. Media Independent Interface. Just a standard set of pins between the MAC and the PHY, so that the MAC doesn't have to know or care what the physical medium is, and the PHY doesn't have to know or care how the host processor interface looks.
         2. Management Signals
            1. MDIO
            2. Management data IO line (bi-directional)
            3. MDC
            4. Management data clock line (uni-directional for MII)
   2. Subtopic 2
4. GNSS
   1. Receiver
      1. messages
         1. types
            1. GGA
            2. GPS Fix data
            3. which provides
            4. 3D Location Data
            5. Accuracy Data
            6. GSA
            7. Nature of fix
            8. no fix
            9. 2D
            10. 3D
            11. PRNs of Sats (and hence their number) used in the current solution
            12. DOP
            13. Dilution of precision
            14. smaller the better
            15. 1.0 for 3D fix
            16. GSV
            17. Satellites in view
            18. PRNs of the Sats in view
            19. Eelevation angle of each sat
            20. Azimuth angle of each sat
            21. GGL
            22. Geographical Pos. Lat/Long
            23. RMC
            24. Recommended minimum specific GNSS data
            25. VTG
            26. Course over Ground and Ground Speed, horizontal course and horizontal velocity
            27. ZDA
            28. Time & Date
         2. standardized
            1. by
            2. NMEA
            3. for
            4. GNSS
            5. GPS
            6. LORAN
            7. Omega
            8. Transit
         3. 8-bit ASCII data
            1. 1 start bit
            2. 1 stop bit
            3. No parity
         4. max characters=79
            1. excluding
            2. $
            3. <CR>
            4. <LF>
      2. interface
         1. TTL
         2. RS232
      3. Baud-rate
         1. upto
            1. 115200 bps
   2. Spoofing
      1. A GPS spoofing attack attempts to deceive a GPS receiver by broadcasting counterfeit GPS signals, structured to resemble a set of normal GPS signals, or by rebroadcasting genuine signals captured elsewhere or at a different time. These spoofed signals may be modified in such a way as to cause the receiver to estimate its position to be somewhere other than where it actually is, or to be located where it is but at a different time, as determined by the attacker. One common form of a GPS spoofing attack, commonly termed a carry-off attack begins by broadcasting signals synchronized with the genuine signals observed by the target receiver. The power of the counterfeit signals is then gradually increased and drawn away from the genuine signals. It has been suggested that the capture of a Lockheed RQ-170 drone aircraft in northeastern Iran in December, 2011, was the result of such an attack.[3] GPS spoofing attacks had been predicted and discussed in the GPS community previously, but no known example of a malicious spoofing attack has yet been confirmed.[4][5][6]A "proof-of-concept" attack was successfully performed in June, 2013, when the luxury yacht "White Rose" was misdirected with spoofed GPS signals from Monaco to the island of Rhodes by a group of aerospace engineering students from the Cockrell School of Engineering at the University of Texas in Austin. The students were aboard the yacht, allowing their spoofing equipment to gradually overpower the signal strengths of the actual GPS constellation satellites, altering the course of the yacht.[7][8]
   3. Geo fencing
      1. Geo-fencing (geofencing) is a feature in a software program that uses the global positioning system (GPS) or radio frequency identification (RFID) to define geographical boundaries. A geofence is a virtual barrier. I don't think this is Spoofing as you're imagining it. The discussion regards an iPad, in this context "jailbroken" refers to breaking Apple's software lock that prevents you installing (potentially nefarious) third party applications. Several of these applications "GPSCheat, LocationFaker etc." are able to intercept the data from the internal GPS receiver (high level information like NMEA data, not raw satellites) and change the location to a user supplied one before passing it on to other applications. This doesn't affect how the GPS actually works, it's just a change in the API internally in software. This is normally forbidden by the software protection (for obvious reasons) which is why "jailbreaking" is necessary. The people in the discussion seem to be trying to get access to online TV streaming applications that aren't available in their area, like someone in France trying to watch BBC iPlayer, this is not allowed because of the way the TV programs are funded so the app asks the operating system where in the world it is before running. A process known as "geo-fencing". [cf]Geo-fencing (geofencing) is a feature in a software program that uses the global positioning system (GPS) or radio frequency identification (RFID) to define geographical boundaries. A geofence is a virtual barrier. The people in the discussion seem to be trying to get access to online TV streaming applications that aren't available in their area, like someone in France trying to watch BBC iPlayer, this is not allowed because of the way the TV programs are funded so the app asks the operating system where in the world it is before running. A process known as "geo-fencing".
5. BDD
   1. A specialised form of Hoare logic applied to TDD.
   2. Specifies that test of any unit of SW should be described in terms of the desired behaviour (i.e. requirements set by the business) of the unit.
   3. BDD is an “outside-in” methodology. It starts at the outside by identifying business outcomes, and then drills down into the feature set that will achieve those outcomes. Each feature is captured as a “story”, which defines the scope of the feature along with its acceptance criteria.
   4. Provides SW developers and management teams with shared tools and shared process to collaborate on SW development.
   5. Reference
      1. Hoare Logic
         1. Hoare triple
            1. {P} C {Q}
            2. When precondition P is met executing the command C establishes the postcondition P
      2. Useful link