1. Prof. Kristofer S.J. Pister’s team Berkeley Sensor and Actuator Center University of California, Berkeley

2. Part VII Integrated Demonstrations Dr. Thomas Watteyne

3. 3 wsn.eecs.berkeley.edu

4. 4

5. 5 AppUdpGina wsn.eecs.berkeley.edu

6. 6 AppUdpGina wsn.eecs.berkeley.edu

7. 7 AppUdpGina wsn.eecs.berkeley.edu

8. 8 AppUdpGina wsn.eecs.berkeley.edu

9. 9 AppUdpGina wsn.eecs.berkeley.edu

10. 10 AppUdpGina request from port 8080 to port 2190 take one measurement wsn.eecs.berkeley.edu

11. 11 AppUdpGina reply (headers) from port 2190 to port 8080 wsn.eecs.berkeley.edu

12. 12 AppUdpGina reply (data) sensitive_accel_x sensitive_accel_y sensitive_accel_z3 sensitive_accel_z1 temperature magnetometer_x Magnetometer_y magnetometer_z large_range_accel_x large_range_accel_y gyro_temperature large_range_accel_z gyro_x gyro_y gyro_z

13. 13 AppUdpGina wsn.eecs.berkeley.edu

14. 14 wsn.eecs.berkeley.edu

15. 15 ICMPv6

16. 16 wsn.eecs.berkeley.edu

17. 17 AppUdpLed wsn.eecs.berkeley.edu

18. 18 AppUdpLed to port 2193 0x0e = 0b00001110 red on blue on green on red off wsn.eecs.berkeley.edu

19. 19 wsn.eecs.berkeley.edu

20. 20 TCP implementation [1/2] Stream-oriented transport protocol – No concept of “packets” – Session establishment between a client and a server – Once established, sessions is bidirectional – Sender has a stream of bytes to send (may be empty) – Receiver announces how many bytes are free in reception buffer – TCP Handles re-ordering/re-transmission if necessary – TCP session can be ended by any end in of the session Needed for HTTP support Corners cut in OpenWSN – Only a single session at a given time (all others refused) – Motes announces windows size depending on packet size, not buffer size: Layer violation But no 6LoWPAN fragmentation needed

21. 21 TCP implementation [2/2] wsn.eecs.berkeley.edu

22. 22 HTTP-to-the-mote Sits on top of TCP – RESTful architecture dlient/server model Server does not maintain any state Single request/response TCP sessions – Server listens for incoming TCP session requests – Client initiates the connection – Client sends request (text based) – Server sends reply (e.g. HTML page) – Server closes the connection Corners cut in OpenWSN – Server does not parse the GET request, just looks for \r\n\r\n – Server only returns a single static page – Extensions: Trivial if payload <48 bytes Modifying the TCP implementation if more 80 lines of C-code in Linux implements static HTML page server

23. 23 HTTP-to-the-mote

24. 24 HTTP-to-the-mote wsn.eecs.berkeley.edu

25. 25 HTTP-to-the-mote

26. 26 wsn.eecs.berkeley.edu

27. 27 AppUdpHeli Motor 1 Motor 2 wsn.eecs.berkeley.edu

28. 28 AppUdpHeli 100 100 tics @ 32kHz = 3ms 0 programmable threshold counter value time wsn.eecs.berkeley.edu

29. 29 AppUdpHeli to port 2192 0x001e=30% on motor 1 0x0029=41% on motor 2 wsn.eecs.berkeley.edu

30. 30 AppUdpHeli Preset take- off speed Stop both motors Click to set individual motor Click to set both motors wsn.eecs.berkeley.edu

31. 31 OpenHome wsn.eecs.berkeley.edu

32. 32

33. Prof. Kristofer S.J. Pister’s team Berkeley Sensor and Actuator Center University of California, Berkeley