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I'm currently trying to connect a Honeywell DRM4000L to a GPS module. The DRM is a dead-reckoning device which takes a GPS input and outputs the location by serial. Currently, I have a GS407 GPS module connected to the DRM. Every time I try the GPS pass-through function on the DRM, I get gibberish output.
I also have an FTDI cable connected to the GPS and I'm getting the correct NMEA data. The data coming in from the GPS is all formatted correctly when connected directly to the computer. The DRM data is also coming in correctly, but it doesn't see an NMEA data stream and thus does not initialize with the GPS data. It only has track information based off of the inertial sensors.
The GPS is set to 9600 baud and the DRM host port is set to 9600, so the DRM should be seeing all the correct GPS data. The baud rate from the DRM to the computer is also 9600.
Is anyone seeing anything that I'm not seeing? Thanks!
Moved to Electronics StackExchange. The problem was that the DRM is using RS-232 while the GPS is using TTL, thus causing the incompatibility between the two modules. A MAX3232 or MAX232 is used to convert these voltages.
Link to complete post:
https://electronics.stackexchange.com/questions/95153/honeywell-dead-reckoning-module-gps-problems
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Closed 2 years ago.
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I have internet connection at my home using a 4G wifi USB dongle, providing the hotspot. Since the service is not always good, I also use a second 4G USB dongle (with sim of a different service provider), when the first connection is down.
I, ideally, want a wifi router, which would take two 4G USB sticks as input, and in turn provide one single wifi network, with the two 4G connections as the backend. The objective is to get seamless internet connectivity (without having to discover internet failure the hard way and without manually switching to the second network).
Are such dual WAN (or whatever they may be called) routers available in the market? Would a Cisco RV320 be a close match to my requirement? In case, there are dual WAN routers available, but with ethernet port instead of USB port, is there an easy way to convert 4G USB dongle to ethernet RJ45 and then use in the router? I am located in India and if the solution is available at Amazon, receiving such link would be great.
What you are referring to is usually termed 'bonding' of internet channels.
It is a common technique to either get higher bandwidth than is otherwise available or to counter availability issues on any one link.
If you search for 'Internet bonding' services or routers you will find examples - e.g.:
https://www.wiredbroadcast.com/products.html#card-mediaport
http://simplybonding.com/examples/mobile-video-streaming.html
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I am having problem connecting the camera module to my Raspberry Pi 4. The PI is working just fine, but when I attach the camera to the module, it just doesn't boot.
What might be causing this?
So you have a successfully booting system then after physically connecting the camera it will not boot?
First, double check the camera is connected properly. Meaning the blue side of the connections are facing the right way (i.e. blue side facing the USB ports on the RPi itself and facing the front of the camera on the camera module connection). A quick search found this post containing pictures, that is usually the issue. If that fails, consider options within the config.txt file on the /boot partition. Reference for config.txt.
One of the config options that gets added automatically when adding the camera interface via raspi-config is start_x=1 Camera entries within config.txt are described here. Be sure that you have enough memory configured (i.e. gpu_mem=128, though increasing that is probably a good idea if you're doing a lot with the GPU (motion detection, etc.). But the physical connection is most likely the culprit.
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Sorry if this is considered off-topic - not sure where else to ask this. I have a ASUS ROG GL552VW laptop and am trying to figure out whether the HDMI port on it supports HDMI 2.0. I wish to use it to output 4k content onto a TV. However, after reading the manual, and a few hours of searching online I simply cannot find this information. I also struggled to find it for other laptops too. Is there some driver I can look for on my laptop which would tell me if it does indeed support HDMI 2.0? Or something else?
TL;DR Does this laptop "ASUS ROG GL552VW" support HDMI 2.0?
I voted for a move to superuser.com since it might be better for this question. However... I think I can answer as well.
Your laptop appears to have a Nvidia GTX960M which apparently does not support HDMI 2.0: https://www.notebookcheck.net/NVIDIA-GeForce-GTX-960M.138006.0.html
You'll be able to run a 4k TV but only at 30 Hz, which is enough for most movies but can be limiting for some.
from Quora: https://www.quora.com/How-do-I-know-which-version-of-the-HDMI-port-I-have-on-my-laptop?share=1
"If you have any Intel Core-based laptop up to the 9th gen, you’ll be limited to HDMI 1.4a while the 10th gen Ice lake series support HDMI 2.0b. For AMD Ryzen APUs, they’re capped to HDMI 2.0b.
This is also applicable to laptops with dedicated graphics as all display output is still handled by the iGPU."
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Closed 7 years ago.
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I'd like to capture the traffic sent by a Sonos speaker (to troubleshoot streaming issues).
I've found one way to do this but it's a bit cumbersome: I plug the Sonos speaker via an ethernet to usb adapter to my PC, share the PC connection and then capture on that interface.
It's limited to one speaker and if the speaker has ever been configured to use the WiFi, it seems that it uses WiFi even plugged that way (and I don't capture anything).
What's the detailed setup to use port mirorring to do this? I'd like to compare the two solutions and don't know much about port mirorring setup.
Thanks!
I would recommend getting yourself a network hub to plug Sonos and the computer into and capture from that.
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Closed 9 years ago.
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is it possible to set 2 separate ip addresses on a laptop by adding a USB network adaptor?
And if so, which one would you recommend?
Thanks!
You can have as more as network interfaces you want, I don't understand which one would you recommend part, but if I understood correctly I mean, if I suggest USB network adapter at all or not.
USB network adapters are restricted to USB speed, so if you have high speed internet and you want to use it with USB network adapter, it's not possible. I'm talking about 1GB, I think maximum speed you can get from USB network adapter is 300 MBits.