Show Posts
Pages: [1] 2 3 ... 121
1  Products / Arduino Yún / Re: New Yún image on: Today at 05:32:44 am
- Linux side ready visual notification: when linux boot completes, the usb led lights up (it's bright white)
It is really hard not to see it. Happy to know it is normal :-)

Best regards
Jantje
2  Products / Arduino Yún / Re: New Yún image on: April 23, 2014, 07:08:10 pm
pkill seems to be in the procps package.
Best regards
Jantje
3  Products / Arduino Yún / Re: New Yún image on: April 23, 2014, 06:55:55 pm
Btw: good to have you back here.. I missed you.
+1

I have upgraded a yun now. It went so smooth I doubth I upgraded at all.
When I started configuring  all went well (yun, cifs, tty, usb-acm,minicom...) except for

1) Yun didn't find my wifi access point (probably it found it but didn't list it due to to many access points).
But connected directly when name is provided (fortunately for me I know my protocol by heart)

2)
Code:
root@Marvin2:~# opkg install procps-pkill
Unknown package 'procps-pkill'.
Collected errors:
 * opkg_install_cmd: Cannot install package procps-pkill.
so pkill won't work (for now).

3)
The mega that was connected during the whole protocol now has a broken USB port. Better be safe than sorry: disconnect all peripheral before doing the upgrade.

Best regards
Jantje

4  Products / Arduino Yún / Re: Upgrading yun: What is the difference between the easy and advanced procedure? on: April 23, 2014, 04:04:24 pm
Isn't it dictated by law? In Europe it's at least two years.
I think 2 years is for consumer electronics. I don't think yun fits that.
5  International / Nederlands / Re: hulp gevraagd voor arduino regelunit voor distilleer apparaat on: April 23, 2014, 03:20:27 pm
meestal staat bij zo een tabel ook wat uitleg en een formule.
6  Products / Arduino Yún / Re: Upgrading yun: What is the difference between the easy and advanced procedure? on: April 23, 2014, 03:03:10 pm
That is clear.
Thanks Federico

Best regards
Jantje
7  Products / Arduino Yún / Upgrading yun: What is the difference between the easy and advanced procedure? on: April 23, 2014, 05:48:00 am
Hi
I have a question about the upgrade:
"What is the difference between the easy and advanced procedure?"
Ok; I can read the different steps on how; but I do not know what the different behavior will be between the easy (recommended) and advanced (warranty breaking) method after they have been executed.
For instance:
Suppose I take the easy method and I reset the yun to default as described here http://arduino.cc/en/Guide/ArduinoYun
Quote
To reset the OpenWrt-Yun distribution to its default state, press the WiFi reset button for at least 30 seconds. The board reverts to the original settings as if it had been reflashed or taken out of the box. Among other things, this removes all installed files and network settings.
Do I need to upgrade again?

Best regards
Jantje
8  Products / Arduino Yún / Re: Is Arduino Yun still in Beta? After many wasted hours I found this...... on: April 23, 2014, 05:16:30 am
I really hope the Arduino core team fixes these issues soon (like in yesterday)
And the good news is : Yesterday is here: http://blog.arduino.cc/2014/04/23/upgrading-the-openwrt-yun-image-on-the-yun/
I'm curious to find out whether my main issues are fixed :-)

Best regards
Jantje
9  Products / Arduino Yún / Re: Is Arduino Yun still in Beta? After many wasted hours I found this...... on: April 22, 2014, 05:45:43 pm
@tdicola
I agree linino is not a full fledged Linux and I agree that multiprocessor programming is not easy.
I however fully disagree that those are the problem end users are reporting here.

The problems I have seen or heard reported here are
  • liability ( sketch using bridge run maximum for a week) .
  • fileio library size() function is not developed yet
  • the yun crashes if you read big files from the micro SD card using fileio library
  • ttyACM0 is unstable
  • WIFI are not usable.
  • DHCP lease not work.
These are not things related to "not running a full fledged Linux" nor to "multi processor complexity". These are related to linino bugs and a badly written bridge (they use the string class using 2K mem of the 28K available  smiley-eek)

I for instance have a yun like solution ( linksys wrt54G running openwrt and a arduino Mega connected via serial port) running for more than a year now with less problems than the yun.
So I think I know about the limitations of openwrt (my linksys has less memory and disk storage than the yun) and I know about multi processor programming (I have a bridge like capability in my solution) but I seem to be unable to get yun to work reliable.
The most striking example is that when I turn the yun on my sketch does not start (even if I call mcu-reset in the boot process of linino) but it does when I upload the very same sketch when the yun is running.

I personally believe that the yun is a very strong player for the embedded mobile market. But the arduino core team has not done their homework properly enough to build a reliable tool based on the yun. It only works fine for a small fun breadboard application.
I really hope the Arduino core team fixes these issues soon (like in yesterday)

Best regards
Jantje
10  Community / Bar Sport / Re: Are microcontrollers considered to be kiddies toys in real world? on: April 22, 2014, 03:43:39 pm
Succinct and completely valid point, but not exactly how I would approach trying to dissuade someone from thinking of them as toys.   smiley-lol
Absolutely true ....
It is so easy to mix up the billion dollar gaming industry and "toys"  smiley-twist
Best regards
Jantje
11  International / Nederlands / Re: Arduino knop en adafruit 815 on: April 22, 2014, 07:29:28 am
als iets doet wat jij wil voelt het meteen goed !!
Helemaal mee eens. Kun je je voorstellen hoe het voelt om je zelfgemaakte grasrobot het gras te horen/zien maaien :-)

Met vriendelijke groet
Jantje
12  General Category / General Discussion / Re: Good practices (Arduino Programming) on: April 21, 2014, 03:26:19 pm
Every { and } goes on its own line with no other code.
*pushes HeliBob off a bridge*

How can you get any coding done when all you're doing is scrolling up and down because of all the whitespace?
I like the each and every { and } on a new line. I have been using this from when I was working on a 80*25 line monitor.
So with modern monitors (even on my laptop with a relative bad resolution) with higher resolution there should be no problem.

I still have some hungarian variable naming habits from the good old days as well. It's been watering down due to C++ usage  but in the C only days that was a really good practice.

Best regards
Jantje
13  Products / Arduino Yún / Re: Is Arduino Yun still in Beta? After many wasted hours I found this...... on: April 18, 2014, 06:56:39 am
I updated the playground http://playground.arduino.cc/Hardware/Yun
14  Community / Bar Sport / Re: ship in a bottle 3D printer on: April 18, 2014, 04:59:34 am
I think standard servo's will not give you enough precision.
if the servo has 1° precision and the rod is 20 cm long you get 0.349 cm precision. And don't get me started on servo's and repeatability.
You will have to go for a stepper with reduction to get some decent results.

I thing the heating issue caused by the long rod is an attention point but not a show breaker. I think your proposal is a good starting point.

Moving the bottle in a 3 axes CNC machine solves the long nossel precision problem but cause new problems. IMHO the biggest one will be to have the partially printed object properly fixed to the bottle.

Now I think about it. It is probably better to have the whole printing head and swivel joint in the bottle. The Z axes outside the bottle and use the neck of the bottle as a solid fixing point.

Best regards
Jantje
15  Topics / Robotics / Re: Arduino output to e bike controller on: April 18, 2014, 03:41:21 am
There is no PWM on a e-bike. They work with a 5K pot.
So what you need to do is connect a pot between black and red and the wiper on the blue one. (not sure about the colors )
Best regards
Jantje
Pages: [1] 2 3 ... 121