I was watching Relational Theory for Computer Professionals – C.J. Date and he made this fun remark:
There’s only three databases in the world: there’s departments and employees, there’s courses and students, and there’s suppliers and parts.
ChatGPT explains a Complex Programmable Logic Device (CPLD):
A CPLD (Complex Programmable Logic Device) is a type of digital integrated circuit that is used for creating custom digital logic designs. It’s a step between simple PLDs (Programmable Logic Devices) and more complex FPGAs (Field-Programmable Gate Arrays).
Click through for further details.
Well. Turns out you can only chain up to five USB hubs. I know, because I tried to chain six. I feel like this is a life accomplishment, and it should unlock a secret level or something. After finding this limitation myself, ChatGPT confirmed it.
ChatGPT explains the golden ratio.
ChatGPT answers the question Is it artist then title or title then artist? Its answer: Artist – Title.
Ah, click bait. Sign of the times! MEGATHREAT: Why AI Is So Dangerous & How It Could Destroy Humanity | Mo Gawdat.
Mo Gawdat is an Egyptian entrepreneur and writer. He is the former chief business officer for Google X and author of the books Solve for Happy and Scary Smart.
Mo says there are some things we shouldn’t waste time talking about because they are going to happen, inevitably. These are:
…and the fourth inevitability? Utopia..?
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I was watching EEVblog #168 – How To Set Up An Electronics Lab and Dave suggested using chisel tips instead of conical tips, which inspired me to check what I was using and also to sort the tips I presently own into three categories:
If you’re interested in soldering temperatures I wrote a follow-up post on that topic: soldering iron temperature.
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Yum Cha 10pcs Magic Foam Sponge notes |
Let’s go shopping!
Well I figured out how to use my new my ZKE Tech EBD-A20H Battery Tester and Electronic Load. This video was really helpful: ZKETECH EBD-A20H first look . Also I managed to find the software mentioned in the comments for that video: ftp://randomdl:randomdl@oss.quindorian.org/Random/ZKE-EB_software_1.8.5-0320.zip
The reason I had trouble configuring this electronic load is that I thought the “cutoff voltage” was a maximum setting, but in fact it means cutoff if the voltage drops below this value. That makes sense of course, especially as the main use case for this device is testing batteries. Once the voltage drops below a certain level the battery is dead and you can stop testing.
The trick with the wiring is that you can just hook the voltage and current terminals up to the battery / power supply terminals. I think the idea is that you can put the voltage and current terminals in different parts of a circuit, but I don’t really understand that, and for simple battery or power supply testing it seems you can just connect them together.
There are two modes available: Constant Current (CC) and Constant Power (CP). I have managed to get the software working and connected so that should mean I can put this up the back of my bench and control it remotely, which will be handy.
My next video will be me making a cable to fix this mess. Once I have that cable I will make a video demoing the EBD-A20H.
This post is part of my video blog and you can find more information about this video on this show’s homepage which is here.
You can support this channel on Patreon: patreon.com/JohnElliotV
In this video I unbox my ZKE Tech EBD-A20H Battery Tester and Electronic Load. I don’t know how to actually use it yet, so once I’ve figured that out I will make another video to demo it in use.
Thanks very much for watching! And please remember to hit like and subscribe!
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
Yutiars Flat Paint Brushes notes |
Let’s go shopping!
This looks like fun: protohackers.com. If I had more time I would definitely do this. If… :P