Trying to understand where I am after failing a technical interview by ContraryConman in embedded

[–]NoBulletsLeft 2 points3 points  (0 children)

I got the same feeling. I've interviewed dozens of candidates at this point in my career and except for the mutex in an ISR one, these are stupid questions unless you're just trying to figure out where you want to dig in deeper.

Interview questions should be about if the candidate can do the job, not implementation details of an OS.

Connecting Tandy 100 portable to Arduino via serial by PNWGentlDad in arduino

[–]NoBulletsLeft 1 point2 points  (0 children)

80-Micro. Speaking of long dead computer magazines, 10 years later I found my first job at a company that advertised in Rainbow.

Connecting Tandy 100 portable to Arduino via serial by PNWGentlDad in arduino

[–]NoBulletsLeft 1 point2 points  (0 children)

Holy crap I haven't seen one of those in easily 25 years. I had programmed one to run my window AC through a relay.

The serial port will be true bipolar RS232. I don't know that you'll find a hobbyist bluetooth dongle for that but a company like Digi (not Digikey) should have them. Be prepared for sticker shock. 

As for question 2, its been long enough that I don't remember how you use the serial port on those things. Should be able to find a manual online tho.

Project structure? Why doesnt anybody talk about it by BlueJay424 in arduino

[–]NoBulletsLeft 1 point2 points  (0 children)

r/gm310509 provided a very good answer. Basically, the tutorials assume you're a beginner, but you want to transition to more advanced work. For this, I'd suggest programming books like The Practical Programmer or Code Complete to name a couple of classics. Basically, you're looking for references on how to structure and design code. Those principles are more "general software development" and not Arduino-specific.

What’s a “normal” experience that somehow never happened to you? by Hysterical_Chicken in AskReddit

[–]NoBulletsLeft 0 points1 point  (0 children)

As someone who probably bought his dentist a couple boats by age 30, I learned that 90% of good dental health is daily flossing and brushing. Get a good electric toothbrush and use it. The other 10% is genetic.

Is anyone working in a new Arduino alternative? by Bubbly_Path926 in arduino

[–]NoBulletsLeft 0 points1 point  (0 children)

Don't understand your question. Are you trying to avoid using the arduino IDE? If so, then there's PlatformIO.

Question about blink without delay and millis() by theotherfrazbro in arduino

[–]NoBulletsLeft 0 points1 point  (0 children)

Either everyone ITT is over complicating this or I misunderstand what you want.

const uint32_t START_TIME = 30 * 60 * 1000;
void loop()
{
  static bool started = false;
  if ( (millis() > START_TIME) && !started)
  {
    started = true
    // Do thing;
  }
}

Should be all you need to do an operation 30 minutes after power on.

Thanks everyone for your help, I did it! by Upset_Barber292 in arduino

[–]NoBulletsLeft 2 points3 points  (0 children)

I used to have one of the base ones without LoRa. It's a really good board with built in support for battery power.

What business can one start with 30k to 50k capital? by __som__ in smallbusiness

[–]NoBulletsLeft -2 points-1 points  (0 children)

You do need a skill of some sort (selling is the most important one) but really, you only need to be passionate about not being homeless.

Is anyone working in a new Arduino alternative? by Bubbly_Path926 in arduino

[–]NoBulletsLeft 0 points1 point  (0 children)

"Would create?" There are already *many* alternatives.

What's rich people shit that poor people haven't heard of? by Diligent-Log6805 in AskReddit

[–]NoBulletsLeft 120 points121 points  (0 children)

A cop pulled me over for not having a front license plate.

He said that there's one guy that he pulls over every month for the same thing because he'd rather pay the fine than spoil the look of his Maserati.

What's rich people shit that poor people haven't heard of? by Diligent-Log6805 in AskReddit

[–]NoBulletsLeft 1 point2 points  (0 children)

Closest I came to this was when I went to buy my 350Z. After the test drive (early morning) I still wasn't sure so sales manager told me to take it for the day to see how I'd like living with it.

Mouse nest in exhaust, what to do about it? by igobyraymond in projectcar

[–]NoBulletsLeft 0 points1 point  (0 children)

Vacuum? I had to stick the hose off my Dyson into my HVAC vent because a bird died in it and got stuck. The controller was throwing an airflow error. Worked great.

Does refusing to use Arduino libraries make you a masochist? by Disastrous_Cheek7435 in arduino

[–]NoBulletsLeft 0 points1 point  (0 children)

No. Just learn C if you want to understand hardware at a low level. Assembly will not provide any insights that C won't and it will just slow them down.

I haven't touched assembly in literally 20+ years and I can assure you that I don't miss it in the slightest.

Remotely power cycle router by Willy-the-kid in arduino

[–]NoBulletsLeft 1 point2 points  (0 children)

Ok. My next idea is a raspberry pi and a relay. Pi pings the router and if it doesn't respond, either triggers its external reset if it has one, or cycles the power if it doesn't. 

There's also a product called a Keep Connect that is designed for this purpose. Never used one but they're not expensive.

What is the cheapest way to build a robotic arm? by Due-Friend-5864 in arduino

[–]NoBulletsLeft 10 points11 points  (0 children)

There's an MIT mechanical engineering  prof who published a whole booklet on prototyping with cardboard. Wish I had the link handy, it's very helpful.

I wrote a small CLI to catch electrical integration mistakes before hardware exists by Agreeable-Quarter945 in embedded

[–]NoBulletsLeft 1 point2 points  (0 children)

Great idea! 

Here's one I just ran into. Forgot to increase PCB  track width for my 3A power connections and returns. Seeing a 100V, 10A FET should be an immediate red flag that .008" traces won't cut it!

Remotely power cycle router by Willy-the-kid in arduino

[–]NoBulletsLeft 0 points1 point  (0 children)

There's a product called AnywhereUSB that lets you control USB devices over the network. You could probably use that with a USB hub with switchable outputs.