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MUC Coursework ● Deadline: 16 April ● Add all files to a folder, and send a compressed version of the folder (.zip or.tar) to by 26.

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Presentation on theme: "MUC Coursework ● Deadline: 16 April ● Add all files to a folder, and send a compressed version of the folder (.zip or.tar) to by 26."— Presentation transcript:

1 MUC Coursework ● Deadline: 16 April ● Add all files to a folder, and send a compressed version of the folder (.zip or.tar) to by 26 March ● The compressed version should be named as follows: Name_Surname.zip or Name_Surname.tar ● Add any comments about your coursework (brief description of files, problems encountered, etc.) into a file called intro.txt

2 Coursework (1/2) ● Problem  2n+1 nodes, one gateway (with an ID of 0), n nodes with odd IDs, n nodes with even IDs  Nodes with odd IDs collect light readings, those with even IDs collect temperature readings  At every period ● the gateway asks the readings of the 2n nodes ● the nodes collect the readings and send them back to the gateway ● the gateway computes the average light and temperature

3 Coursework (2/2) ● The gateway  Computes the average light and temperature at the beginning of each period (of five seconds)  Sends the average light and temperature in a single packet to the UART ● The other nodes  Send their readings after a random interval, so that the messages from different nodes are not sent at the same time

4 Design ● The gateway  has a PeriodTimer  sends BroadcastMsg  receives LightMsg and TempMsg  sends UartMsg ● The other nodes  have a Light or Temp sensor  receive BroadcastMsg  have a DelayTimer  send LightMsg or TempMsg

5 Architecture CourseworkCCourseworkM StdControl TimerLeds SendMsg ADCReceiveMsgRandom LedsC TimerC Random LFSR DemoSensorCTempGenericComm Main Makefile

6 Hints (1/2) ● if (TOS_LOCAL_ADDRESS%2==0) { /* even node */ } else { /* odd node */ } ● You cannot pass parameters to tasks, you need to use global variables ● Write a specific task for each message to send ● You can send to the serial port using TOS_UART_ADDRESS (and you can see those messages using export DBG=uart )

7 Hints (2/2) ● The gateway needs four variables to compute the averages  sumLight  numberLight  sumTemp  numberTemp ● The nodes need only one variable  lightValue or tempValue


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