Category Archives: Internet

Mail Call #29: Raspberry Pi Picos, 2.5V Lamps, and a Broken Bin | In The Lab With Jay Jay

Posted on by
Reply

This post is part of my video blog and you can find more information about this video over here.

You can support this channel on Patreon: patreon.com/JohnElliotV

Silly Job Title: Code Warrior.

Super big thanks to my new Patreon supporters Ali and Learning as a hobby, it’s really great to have your support, thank you!

In this video we have a look at what has arrived in the mail:

I mention about the ITL Wiki and my Learning the Art of Electronics project, the first lab should come out for that this coming Tuesday, fingers crossed!

Also I mention about the project from Willow Cunningham which is PentaPico: A Pi Pico Cluster For Image Convolution and is what I got my RPi Picos for!

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!

JST XH2.54 6pin Pre-crimped ConnectorThis is an image of the product.

Let’s go shopping!

Channel News #8: Update Regarding Upcoming Projects and Videos | In The Lab With Jay Jay

Posted on by
Reply

This post is part of my video blog and you can find more information about this video over here.

You can support this channel on Patreon: patreon.com/JohnElliotV

Silly Job Title: Capacitor Captain.

In this video I make excuses for why you haven’t had a video from me for two weeks. Excuses, excuses.

It is still my ambition to release three videos per week, on Tuesday, Thursday, and Saturday.

As I mention in the video I have been working away on the Learning the Art of Electronics project and making notes for all five of the referenced books but I still have a heap more work to do. Further, I’ve been working through the first edition of Learning the Art of Electronics because my second edition hasn’t arrived yet. So today I bit the bullet and canceled my order of the second edition from Amazon AU (I’ve been waiting since January) and placed a new order with Amazon US so my second edition should now be arriving by May 24, later this week.

I have ordered some bits and pieces for my Logitech BRIO web cam including this stand, so I should be able to start making maths videos on my channel soon. But it will be very basic high school maths. If you want more serious maths I would be happy to recommend my friend who makes advanced maths videos on his channel Learning as a hobby.

Speaking of my mate on the Learning as a hobby channel he recently scored a copy of the CDROM that comes with Principles of Electronic Circuits 2ed and is making preparations to send me a copy (either as an ISO or in the snail mail), so standby for more on that. This is a super exciting development because I had concluded that finding a copy of this CDROM was going to be impossible, but here it is!

The long projects that I’m working on which are presently brewing include:

  • Silicon Chip and Jaycar Mini Project JMP003
  • Demo of EEVblog BM2257 multimeter
  • Old book teardown of Electric Circuits
  • Project #1 from Maxitronix 30in1
  • Lab #1 from Learning the Art of Electronics

I have made a start on all of the above but it’s going to take me some time to finish them all. In the mean time I am going to try to get some smaller projects done so that I can hit my target of three videos per week.

And that brings you up to date with news from the channel.

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!

Yum Cha 395nm UV LampThis is an image of the product.notes

Let’s go shopping!

Statistician Answers Stats Questions From Twitter | Tech Support | WIRED

Posted on by
Reply

This was a good overview of what’s possible with statistics: Statistician Answers Stats Questions From Twitter | Tech Support | WIRED.

But I’m pretty sure that at t=11:23 he gets it wrong. The probability that three people in a family have the same birthday isn’t 1 * 1/365 * 1/365. but rather it depends on the number of people in the family (starting, I guess, at some epoch). This is known as the Birthday paradox.

To be clear: they’re not asking what is the probability of three people being born on January 10. They asked what are the odds of three people from an unspecified family size being born on the same day (could be any day of the year).

Chess strategy

Posted on by
Reply

I enjoyed this one: I wasted years losing at chess, until I learned this.

Focus on solid moves. Don’t attack, wait for opponent to blunder. Try to avoid pushing pawns unless you have to. You can develop C, D, E pawns. Open by putting a pawn in the center. Castle early.

After the castle we’re into the mid-game. Then every move we have to look for:

  • Checks
  • Captures
  • Threats

If there are no checks/captures/threats we go for Optimization. So develop any pieces still on the back rank or the C, D, E pawns.

So it’s Checks, Captures, Threats, Optimizations.

Note: just because you have a check or capture doesn’t necessarily mean you have to play it.

Bottom line: avoid blundering and wait for your opponent to blunder.