I watched Ben Eater’s videos How do CRCs work? and Checksums and Hamming distance (the full course is Learn about error detection) then found the Wikipedia page: Cyclic redundancy check.
Also of interest:
CRC
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Category Archives: Notes
Keyspace on the back of an envelope
One question that always plagues me: should I use 32-bit or 64-bit keys. I can never make a firm decision on this point. But I’ve just done some back of the envelope calculations in thinking about it.
If you issued one identity per second, every second of every day, it would take 136 years to exhaust the keyspace.
If you issued one thousand identities per second, it would take 50 days to exhaust the keyspace.
BPS BB830
These BB830 breadboards are the ones Ben Eater uses in his videos.
HP-16C
I was watching Ben Eater’s video Build an 8-bit decimal display for our 8-bit computer and I was interested in what calculator he was using. Seems to be an HP-16C.
YouTube channel logo
I wanted a new logo to go with my YouTube channel to replace a very old photo of me. So I asked ChatGPT and it didn’t let me down!
Amphetamine
I wanted to know how to stop my MacBook Pro from going to sleep when I closed its lid, so I asked ChatGPT and discovered Amphetamine. Good work, Internet; you have come a long way since the nineties.
p.s. I always wanted to blog about amphetamines.
Keyrings
It is well known that I am a nerd. But if there were any doubt, this removes it. :)
Early Content #2: Scope Test | Learning Electronics In The Lab With Jay Jay
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
This video is just me testing the operation and recording of my MSO5074 scope and my signal generator.
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!
EXAR XR2206 Signal Generator notes |
Let’s go shopping!
Early Content #1: Hello, World | Learning Electronics In The Lab With Jay Jay
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
Just preparing my lab cameras. This video is a bit sketchy because I made some mistakes during recording. But it is what it is. Hi! :)
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!
Logitech Brio USB Camera |
Let’s go shopping!
Installing Vim on FreeBSD
I was fooling in my new OPNsense router and needed myself a copy of Vim. Learned I could install it on FreeBSD (on which OPNsense is based) using the `pkg` command:
# pkg install vim