Redbot pt 3

I did some more work. I found my second Pi 3, found (in literally the last place I could think of) my SD card to USB adapter, and then put on a small copy of Raspbian.  With only a minimal amount of dicking around, I get ssh’d in, and I’m in business. For future efforts, I need to find a replacement for ssh. I think I should setup either Static IP address for the home or something. Really, my home network is an effort in laziness, and it shows. I’m also thinking I might replace the OS for the Pi-Top, because I just really don’t like that flavor. In part I think it encourages me to be more inefficient.

Now then, it wasn’t all roses. First of all, and I was thinking this yesterday but forgot it until I want to bed last night, I should start documenting these projects like tutorials for others. While I assume my readership will always be slight, I need to be able to remind myself of what I did and why. Or… I could start a project on Hackaday’s project database. Maintain change logs and stuff. I should think about that.

That being said, there was a more real problem. I got ssh’d into the Pi. I opened a USB serial port to the RedBoard,  and balls. The best I got was a flashing status LED when sending data and a hung screen connection that received a line of text. I’ve got to nail that down. I think I’ll have to re-look at my serial settings, and maybe see if it’s not sending a newline maybe?

Redbot pt 2

Last night I downloaded a fresh copy of the Arduino IDE, as I think I corrupted the old install by going who knows what. Fired it up, grabbed the Sparkfun Redbot libraries, and got it blinking. I sent over a test of the wheels and nothing. Batteries must be dead, so I replaced the batteries. Nothing. Now this has been kicking down in the Den for quite a while now, but everything looks fine. Oh, but I did have the motor disable switch flipped. So that works now. Then, right before the kingdom of Nod attacked, I loaded the serial command setup and spun some tires.

So tonight, I should focus on the Raspberry Pi end, I’ll grab the one not in the Pi-Top,  and start loading softwa… nope. Tonight I’ll change the default user and password. Security! Then get an outbound serial terminal for driving the RedBot. Then I’ll look at chopping out the excess software and putting on what I need. Maybe I should look for an OpenCV crash course online.

Redbot

Grabbed that guy it of the scrap pile the other day. I think it’s time to make him earn his keep. First, get manually driving the wheels. Then get a RPi dying the wheels. Then add OpenCV to the RPi.

Well that’s a start at least.

I was doing my day job

And realized I have a problem with trying to multiplex the moisture sensors. Mainly, optimally you inert the current regularly to prevent electroplating them. The problem is trying to figure out how to multiplex them and invert the currents, seeing as how the traditional way to multiplex them is to use diodes. I’m thinking of an idea, but it might be more terrible than it’s worth.

I could try to find done cheap I2C or SPI chip things though. That’d be engineering right there. Like a boss.

How and why

So I’m still doubling around with that odd server issue. I’m getting closer, I know the symptoms, just not sure about the best solution. While doing other things tomorrow, I think I need to bounce it,  stator it up, and once it’s started throw one file at it while logging the output of netstat every 30 or so. I’m assuming I’m hitting the built in cap on open network ports with the large number of small files I poke at. Now JobFlow seems to limit 5 files being processed at once just for this reason, but for some reason, I’m still running afoul of ports cycling too fast. Of course, this is all conjecture, so we’ll see if I see the cursed number hit.

Assuming that my auditions are correct, which is often the case,odo I increase the connection limit, add a delay for every file processed, add a delay based on the number of connections used, or something else. Totes not meh job description.

Cooked dinner

Jasmine rice – boiled seperately

1/2 red onion, chopped loosely

3 celery stalks

2 100% cooked andulie sausages chopped like hotdogs in Mac and cheese

1 large garlic clove done on the garlic thing

2 tomatoes – sliced

fried up in the cast iron

Per the Wif, and I agree, I should add some more spices

It’s like I’m an old  timey doctor

I’m currently trying to diagnose a problem that I can’t touch. I can’t allow anyone else to look at it. The people who can let others look at it won’t. So here I am. It’s kind of a blind flailing situation.

So tomorrow, I’ll update JobFlow (which I elect to do jack shit all). I’ll check the logs to see why things petered off at 5:16pm. My assumption is still that we’re looking at an issue in Apache. That’d be my guess. My current methods involve going through and killing all SMB access. I think Apache is insisting on opening and closing every freaking port it can find too fast, which means it’s just running out of open ports. This gets worse when there’s a backlog of files to process as suddenly there’s a race to finish one a port does open up.

This is getting so annoying that I’m actually blogging about what I do at work. I’m still intentionally vague, but this is the closest I’d ever get to really discussing it. 

There had to be a something wrong. There has to be a reason why or install is such complete trouble. I wonder if it was that one patch I found for Apache. Or maybe it’s the number of  that  never freaking die! Whelp, that’s tomorrow (today). 

Totcho’s again

Same idea as last time, same failing to take pictures. The variations were:

  • Replaced the black beans, onion, and tomatoes with some of the Wif’s homemade chili
  • Tin foiled the sheet pan
  • Added a deseeded jalapeno and green onion under the cheese
  • Replaced the cheddar with shredded and chunked whatever cheese I had handy

Next time I should nonstick the foil and encourage the Wif to not use a metal spatula.

Oh yes, it was delicious. #blessed

Further ramblings

In the Den I have two recessed lights. This is another way to day I have two structurally sound, bear beams access points to mains voltage – with access to an emergency off button even. So if I replace one of those with an arm mount, the  ceiling  is the limit. Hahaha.

I’m thinking of going with a lazy Susan style mount, upside down of course, and then desk lamp style arm. I’ll probably go with bicycle brake lines

Bowden Cables. That’s what they’re called. Looking into efficiency of power transmission have me this.  Really cool article, not really what I’m doing, but it gives me an idea of what I’m looking at as well as a better understanding of waking kinematics.

So Bowden Cables are definitely in the running.