Practical - 9
Name : GOHIL AJAYKUMAR SHANKARBHAI
Roll No : 16BIT058
Subject & Course Code: IoT (CE671)
Aim: To Simulate CoAP protocol in Cooja Simulator
Methodology :
1. Start cooja simulator and Create new simulation.
2. Create new sky mote and browse c file for RPL Border Router implementation
/home/user/contiki-2.7/examples /IPV6/rpl-border-router
Open border-router.c file complie it and click create button and the mote will be added.
3. Create new sky mote and browse c file for CoAP server
/home/user/contiki-2.7/examples/er-rest-example/er-example-server.c
Open er-example-server.c file complie it and click create button and add two motes.
Figure 1
4. Arrange motes that 1 and 2 are in the range and 2 and 3 are in the range of each other
Figure 2
5. Start serial socket for mote 1
Figure 3
6. Type following commands in terminal
Figure 4
7. Then start simulation
Figure 5
8. Now to access the mote from internet open browser and type the mote address with
coap:// protocol (I have used 2nd mote with IP aaaa::212:7402:2:202) then click GET
button so it will display the mote information.
Figure 6
9. Now right click on the mote 2 and enable show LED option
10. Then go back to browser and post 1 in actuators>toggle
Figure 7
11. Go back to cooja simulator and open the LED window. There RED LED is on.
Figure 8
Conclusion :
After performing this practical I have learnt how to simulate CoAP protocol using Cooja simulator in
Contiki OS. I have also learnt configuration of motes like RPL router (Server mote) and CoAP (client
mote). Then how to control that virtual mote from the browser using CoAP protocols GET & POST
methods.