Electrical Engineering

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Asmyldof

09:55

@Undo Find a board with the ATSAMD11C / ATSAMD11D / ATSAMD21

They are cheap and have built in USB, which means that if all else fails you can use Atmel Studio to hack together an ASF project with USB serial

octopart.com/search?q=ATSAMD11

In fact, if you were to want a 1000 I could clunk together a board design that ends somewhere in the $5 to $9 per piece in hardly any time at all

2 hours later…

abdullah kahraman

12:14

Look where the world has come to.. A great MCU with USB for under $1 even for 100pcs..

Asmyldof

@abdullahkahraman D09D was introduced nearly 2 years ago

abdullah kahraman

So, 16 kB is enough for a simple USB HID application?

I guess I will have some time in couple of months to play with these SAMD series. But my priority is with the EFM series from SiLabs, since I noticed that beforehand, she wins :)

Asmyldof

12:48

@abdullahkahraman USB stack need only take 4~5kB of Flash when taken from ASF and maybe 1/3rd the RAM in the D09D14

Regardless of what it does

abdullah kahraman

Wow, that stack is really small

Asmyldof

@abdullahkahraman No, you just choose one function

If you want a full stack you'll probably have too little space

abdullah kahraman

I think it is great.. Why would I need a full stack with such a simple micro anyways? Give me HID or CDC Serial and I'm done :)

Asmyldof

13:07

Exactly

abdullah kahraman

13:20

When is the next "episode" of Off the Clock ? :)

Asmyldof

13:31

Should have been posted two weeks ago, but I'm having serious troubles staying awake after the emotional drain that is day-time mo through thu

So, probably also not going to finish the robot in time. Very likely not to, in fact

But I will keep working on it whenever I can until it does something fun

PlasmaHH

13:59

anyone has a favorite way of holding (relatively) small pcbs in call kinds of angles to work on? I destroyed my flimsy plastic small pcb holder and the big one is, well, big...

Asmyldof

@PlasmaHH I have a rotatable/angle-able bench vice I use most commonly, since I kept the plastic protective covers for shipping it and use them to protect PCBs from clamping force

Pretty nice Stanley one

abdullah kahraman

14:27

I never use such a thing

@Asmyldof Waiting for that :)

PlasmaHH

@abdullahkahraman try it, its useful

abdullah kahraman

14:42

Like this?

Why is the angle important? I cannot imagine working with that

PlasmaHH

@abdullahkahraman what do you do if you have to measure something between two points that are on opposite sides? or (de)solder something that you have to hold on one side and (de)solder on the other?

abdullah kahraman

@PlasmaHH lol I have a hard time

However, when I am doing these stuff such as measuring-desoldering, I am repairing industrial electronics and they are hardly just a PCB :(

PlasmaHH

@abdullahkahraman I try to get the bare pcb out when doing any soldering, makes the washing step afterwards easier too

abdullah kahraman

Sometimes we have some devices that makes me, as a 27 years old young guy, say: "I'm too old for this shit"

PlasmaHH

smd isn't that new ;)

abdullah kahraman

14:51

Of course, afterwards I really eager to punch my desoldering station for not having enough thermal capacity :)

PlasmaHH

practice desoldering with desoldering gun in one hand and a soldering iron in another. works fine. 8 layer board with heavy power planes, all set to 450°C and boom ^^

Asmyldof

@PlasmaHH Or just get the Weller 120W one?

PlasmaHH

@Asmyldof if I would need that much heat often enough, sure, but for those few cases its not worth the effort. rarely it is an easy through hole part that fails on boards with many layers and planes

Asmyldof

@PlasmaHH I'm quite happy with my central-vacuum powered Weller Solder Sucker. Then, I did also buy the WD2 station that drives it a few years before

PlasmaHH

yeah, I have been quite happy with weller products int he past too, and should my budget ever allow it I will surely have a look there again

hm, now that I saved 300€ on this mixer....

Asmyldof

15:06

@PlasmaHH WXD81 is about the 300 euro range

Or was that WD81?

The full set of WD2 set-up I have still retails around 2500 I think. If you count my vacuum mod even more, since you'd need a WXD2 station for it without the mod

PlasmaHH

I think that before upgrading that I rather upgrade the basically nonexistent cheap chinese bare pcb function generator and counters...

and if I had 2 grand that I don't need I would buy a SA

or maybe before than a nice dslr but that would be mroe than 2k€

abdullah kahraman

I have this, and on the back of the station it says 212W

PlasmaHH

that looks pretty flimsy to me

abdullah kahraman

15:36

That is PACE!

ucha

Anybody knows a site to sketch arduino which i can show my work and let you understand what i did so that you could see where the error is

It may be simulation or just sketching site

ucha

15:57

i found at last... thank you

2 hours later…

Scott Seidman

17:54

My grades are all in!!

Asmyldof

I only have centi and tardi

Asmyldof

18:21

Gotta love an obviously hand-drawn schematic with a document-details box

4 hours later…

Asmyldof

22:01

Chasing chickens, y'all

Or to put it differently, I shot 5 minutes of attempts at video, spent 100 minutes editing and now have a 20 second general intro that's mediocre at best

Very clearly should not give up the day job

Well,

Eh, long story

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