EEVblog #759 - Mailbag

A big mailbag episode, getting through lots of backlog.
P.S. Yes I failed to twig to the cordless ESD strap. Will have to do a video debunking this!

SPOILERS:
NicaDrone EPM688 OpenGrab Electro Permanent Magnet
For UAV/drone payload pickup

Fused USB to UART adapter (FTDI-Free)

A PCB designed in AutoCAD.
Freescale tower system modular development platform:

Perf prototype board:

Pulsed Light laser LIDAR module

A fun FAIL button, and a whole lot more.

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[dancoulson]

Seeing the ten year old with a lab has restored a bit of faith in humanity.

[GadgetAddict]

I'm pretty sure that esp8166 / esp8266 is for wifi, not bluetooth.

[martinda]

Great to see you giving your time to such a nice lad. Ignore any negative comments, such people really are incomprehensible to me. Well done Dave.

[Psychlist]

I prefer the format where you open an item and then inspect/teardown right then. I suppose it's more work for you, but it's much easier to watch.

[jwcottam]

Hello from Toronto! I love your videos. Half the time I am not sure what you're talking about, but you're so funny I keep listening. I've learned a lot and am ready to dig into this hobby a bit. Thanks so much for igniting the spark in me and my two kids. J

[ForViewingOnly]

It was fun having Ryan on these mailbag videos, he's a good kid. He's already learned one of the biggest lessons for YouTube and for life in general: Screw the haters! :)
Good on you Ryan, and good luck in whatever you choose to do in the future.
On an electronics note, that electro permanent magnet was like some kind of black magic... I had no idea you could create a permanent magnet with a brief pulse.

[brandonjackson]

Dave - I respect you for bringing the kid onboard. You're a good mentor.

[louisjacooper]

Love the new single take format please do all future episodes like this!

[TheEricBrian]

Really liked this format.

Ryan take care and hope to see some your projects in the future.

[Ashley]

Wish my work experience was so inspiring great show as always keep up
the great work :)

[The_Slippery_Slope_NZ]

"Your a great teacher....very hands on...." DODGY LOL!! jokes :)

[CH_Pechiar]

I liked this method of opening everything first and then taking a closer look to each item

[erick]

Ryan is hilarious. Cracks me up every time he is on the show/mailbag. Good luck in the future, Ryan!

[andreasjochum]

Hello, Andreas here from NicaDrone
You should be magnetizing while in contact with the ferrous target :D 
the entire resistance of the capacitor and thyristors is ~70mOhm the current really should be around 300A. But accounting for the shunt resistor's inductance while doing the current measurement is a bit problematic

[williamhayden]

EEVblog Dave I don't mind the format of this mailbag at all, but if I were to pick I'd pick the previous version.  It just seems to flow better.

[ABaumstumpf]

But that Ryan and a professional YT career?  
Can't imagine that, sorry.

[Psychlist]

I assume: Vienna Choir Boys: as in Vienna Austria, as in Australia, not Austria. :)

[SpeakerFreak]

Belle, West Virginia, just a few miles from me! Good to see some mail from our state in there!

[Psychlist]

If I ever mail you something, I'm totally saying it's from my 9yo son so it gets a good reception. :)

[levram]

The "bluetooth" adapter board is actually an esp8266 wifi board attached to the usb to serial.  You're right that the wifi board only costs $2-$3.  The brief view of the letter mentioned it.  Some very cool things going on with the esp8266.