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Everything posted by babadoctor
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Bending NEMA 5-15 wall plug for electric car charging
babadoctor replied to babadoctor's topic in Hobby Electronics
That makes sense -
Bending NEMA 5-15 wall plug for electric car charging
babadoctor replied to babadoctor's topic in Hobby Electronics
No it's not, but i guess the other part of the question was what makes the two plugs different physically, besides the sideways part? -
Bending NEMA 5-15 wall plug for electric car charging
babadoctor posted a topic in Hobby Electronics
https://shop.tesla.com/product/gen-2-nema-adapters The place I want to charge has a 5-15/20 passthrough outlet If I twisted the nema 5-15 hot plug so that it could fit in the 5-20 passthrough, could I charge my car at higher than 12 amps? I could purchase the correct adapter but it costs 40$ and I don't want to pay for another adapter lol How unsafe is this Also are there any adapters that are cheaper that accomplish the same thing -
Yes, that's true, there are many ways in which you can perform a denial of service through causing my server to run computationally intensive tasks, but for now I just want to worry about those attacks which require an attacker to send a massive amount of bandwidth. No, the DNS lookup doesnt show the IP address or anything like that. The way I went about blocking it was just setting UFW to only allow access to cloud flare's IP addresses.
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If I have a server which hosts a website, and then make the server only respond to connections from cloudflare, how is it possible that people find out the IP address of the server and attack it anyways? shouldn't this be foolproof? so then why is it that I constantly hear about websites being attacked and going offline for extended periods of time? I'm currently hosting a website this way, so I just wanted to see what mistakes were made or what I have not accounted for in protecting it. Thanks
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how do I use regex to replace a certain part of a string and nothing else? i want youtube.com links to get auto redirected to yewtu.be links. for example https://www.youtube.com/watch?v=R7CO9v9rpOk i want this link to redirect to https://www.yewtu.be/watch?v=R7CO9v9rpOk the only difference in the links is the domain name. How can I accomplish the replacement with regex? I tried this but it didn't work
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Computer randomly shut off, now wont turn back on?
babadoctor replied to babadoctor's topic in Troubleshooting
Are there any other tests i can do to confirm whether or not it is a dead motherboard, or power supply? If not, I will just take it to the shop. -
Computer randomly shut off, now wont turn back on?
babadoctor replied to babadoctor's topic in Troubleshooting
I don't know if it's fried, because the RGB ram and the webcam are powered on.. How do I do the paper clip test, and what would I look for to see if the psu is fried or not? -
Computer randomly shut off, now wont turn back on?
babadoctor replied to babadoctor's topic in Troubleshooting
Sorry, forgot to mention. It is a coolermaster MWE gold 750. -
Hello My PC randomly shut off while I was using it, and when I tried to turn it back on the CPU fan wouldn't turn on. The RGB ram I have is powered on, and the peripherals also get power. But for some reason, when I press the power the CPU fan and other fans move an inch and stop. And it does not boot. No beeps either..... Any ideas? CPU: Ryzen 2700x Ram: Corsair Vengeance RGB PRO 16GB (2x8GB) DDR4 Motherboard: Asus Prime X570-P GPU: Gigabyte RTX 2070
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Why does it need to be 1TB of ram? Can't I just have 256gb of ram and move the plot over to a mechanical drive after it's done generating the plot? or would it be too slow? Interesting So the power usage for powering the ram sticks / CPU is a lot more cost intensive than just powering an ssd? I thought the cpu would be doing the operations anyways since it needed to generate the plot anyways
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If I use a ram to create a plot, shouldn't I theoretically not have to worry about disk endurance? Or is the process of having the plot on a hard disk write intensive as well? I found some videos about it, but I couldn't find anything specific about it. I am thinking that it may be possible to mine chia on /dev/shm on linux, or something but I can't find any tutorials. Shouldn't mining chia on ram not have any of the endurance issues people are facing with buying traditional ssds? What is the best way to go about this?
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LiPo battery charging rate with desk bench power supply?
babadoctor replied to babadoctor's topic in Hobby Electronics
Do you have any recommendations for a motor? I might actually ditch the one I am attempting to use right now since it can't really perform all too well. -
LiPo battery charging rate with desk bench power supply?
babadoctor replied to babadoctor's topic in Hobby Electronics
Yeah, I was going to get a license to fly it because of it's weight I was going to try and use a lora module and an arduino, if that doesn't work I was planning on just purchasing a radio as well. -
LiPo battery charging rate with desk bench power supply?
babadoctor replied to babadoctor's topic in Hobby Electronics
I have a motor that can produce around 1kg of thrust, so I was hoping that with this battery and a frame made of cardboard it could possibly work. I would need to register with the FAA, yeah, i think they have a 5$ fee on their website for any over 550g. -
LiPo battery charging rate with desk bench power supply?
babadoctor replied to babadoctor's topic in Hobby Electronics
I was going to make an RC airplane with it is there really that much of a difference between charging with a lab bench power supply and a charger? -
LiPo battery charging rate with desk bench power supply?
babadoctor replied to babadoctor's topic in Hobby Electronics
This is what I was referring to, yes. I watched this video, and he uses the same 1c method which i was attempting to replicate. -
LiPo battery charging rate with desk bench power supply?
babadoctor replied to babadoctor's topic in Hobby Electronics
https://www.amazon.com/gp/product/B07T848BXN/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 I've seen bad reviews, so I might return it -
I've seen conflicting answers all over the internet I have a 3S 60c 5200mAH Li Po battery All of them say charge at 1c, but for some reason people have different opinions on what that means https://forums.traxxas.com/showthread.php?8941991-how-many-amps-should-i-charge-my-lipo-at This forum says that you should charge it at 1c, which would be the capacity divided by 10, so... 5.2 amps at 12.6v? This doesn't seem safe. I know how dangerous these batteries are, so what is the recommended charge rate? Other people suggest charging it lower. https://electronics.stackexchange.com/questions/182781/how-to-charge-lipo-with-a-laboratory-power-supply Stackexchange says charge it at 1/10th, so, 520 milliamps at 12.6v? I'm so confused.. Can anyone help me out?
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Hello, I want to make a website that only cloudflare can have access to. I don't want someone who browses to my local IP and does a port scan be able to see I have a web server running on a random port. Is there an easy way to do this? I was thinking maybe something with iptables whitelisting, but what do you guys suggest?
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Use LoRA module for audio transmission?
babadoctor replied to babadoctor's topic in Hobby Electronics
Oh, I see... I think I misunderstood what lorawan is, I thought it was a technique of using TCP/IP over Lora between two devices -
Is it possible to use LoRA for a live audio transmission? I know LoRA is half duplex, but so is WiFi, so shouldn't it technically be possible to do something like VOIP over LoRAWAN? I couldn't find any projects relating to the subject, so any advice is appreciated. The main project I wanted to do was build a doorbell with audio transmission capabilities. E.g user presses button on doorbell, an audio channel is opened, and I can speak to whoever is outside, and they can speak to me.
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