![]() In my case, this is the WiFi connection information:Ĭompare the screenshots in steps 7 and 8 with the networking diagram shown earlier to gain a better understanding of what is going on. Make sure you are connected to the WiFi router. I assume here that you have already configured your WiFi connection.The IPv4 address is automatically set to 10.42.0.1. To verify that you have followed the steps above correctly, show Connection Information (by clicking on it from the same drop-down menu shown in step 6).For the change in step 5 to take effect, click on Auto Ethernet (or whatever it is you called your ethernet connection) from the drop-down menu shown below:.Change Method from Automatic (DHCP) to Shared to other computers as shown below:.Go to the IPv4 Settings Tab (shown in picture below) After clicking Edit, a window appears.Select the Ethernet connection, and click Edit. Make sure paper is loaded in the main tray, and then turn on the printer. After clicking Edit Connections, the following screen appears. Connect the printer to the network (Ethernet) Connect the printer to your network router, switch, or hub with an Ethernet cable.Click on Networking Symbol, and click on Edit Connections:.The same procedure can be followed on other hardware to achieve the desired functionality. One more note: the networking procedure described here is not specific to the hardware used. This may not be the best approach, but this is what worked out for me. After a lot of trial and error, I am presenting one possible way of establishing this network. It is also required to be able to view ROS topics on the master (in my case, the Intel NUC) from the other PCs (Jetson TX2, and ground control station).Įstablishing the network described above seems like a straightforward task. ![]() It is desirable to be able to ping any of the devices from both networks to any other device from either network. In order to communicate with the onboard computers from the ground control station (laptop), a WiFi router is used. ![]() Note that these two computers are on the drone, so it makes sense to establish a wired network between them to ensure stability of the connection, and this is why an Ethernet cable is used. The idea is to have the best of both worlds by having them both on the drone. The other computer, the Intel NUC, had good integration with the RealSense camera which is the de facto officially supported camera for the PX4 obstacle avoidance ROS package. Why did I need two computers, you ask? One computer, the Jetson TX2, had good performance in object detection tasks because it had a GPU, and GPUs greatly enhance the speed of neural networks which are used in object detection. I wanted to have two computers on the drone connected via an Ethernet cable, and I wanted to be able to communicate with the onboard computers via WiFi. This situation arose during ERL 2019 competition. In some applications, it might be necessary to have, not one, but multiple computers connected via an Ethernet cable, and then the bunch of them connected to a remote WiFi router. Setting Up a ROS network: WiFi + Ethernet.I've looked into the ceiling cavity and the earths have been either bent back or twisted together. The lights are LV downlighters in most rooms and mains voltage downlighters in the hall, all double-insulated so not earthed. Do I just connect this directly to the new chrome switch or do I connect a new earth wire to these wires and then connect them all to some earth terminal somewhere? Some of them are the plastic hollow wall (non-metal) boxes, in which case the earths have been sleeved but not connected to anything. The EV chargepoint is also connected to this same point, using the same earth. This allows the mains supply to share a conductor for both earth and neutral entering the house. I have already checked and all the back boxes have earth wires. In a PME system, the home’s earth wiring all runs back to the main supply point where it connects to the neutral conductor coming into the home. Is there any particular type/thickness of wire I'm supposed to use? So I guess I need to buy some from somewhere. Now I know metal face plates are supposed to be earthed but I assumed they'd include a bit of yellow-green sheathed wire with the switches. I've just bought some flat plate chrome light switches. Just after a little advice so I know I'm safe and not gonna electrocute myself!
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