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1  Products / Arduino Due / Re: What are the possible PWM frequencies? And how to set them. on: Today at 10:00:08 am
@pbrouwer
I had read the thread. Didn't find the info I needed.
I reread the thread. I still don't understand it enough to find out what frequencies are possible on which pin and how to do it.

Best regards
Jantje
2  Products / Arduino Yún / Re: Is the Arduino Yun still Open Hardware? on: Today at 09:38:48 am
thanks for the explanation.
Now I get it.
What you explain (making a yun with a wifi router) is what I did with a linksys and a mega before yun existed.
I'm probably lazy but I prefer a ready made package. As a shield fits on top of a arduino there is no way to beat the "size" and "build-in" characteristics.
With a "built-in" package, you are limited to a 32U4  smiley

And you can certainly beat the "size" characteristic by using a mini or micro board smiley-cool
I guess I didn't get it in the first place then  smiley-confuse
Seeing the problem I have in "getting it" I'll stop trying.
Best regards
Jantje
3  Products / Arduino Yún / Re: Is the Arduino Yun still Open Hardware? on: Today at 02:24:25 am
thanks for the explanation.
Now I get it.
What you explain (making a yun with a wifi router) is what I did with a linksys and a mega before yun existed.
I'm probably lazy but I prefer a ready made package. As a shield fits on top of a arduino there is no way to beat the "size" and "build-in" characteristics.
Best regards
Jantje
4  Products / Arduino Yún / Re: Is the Arduino Yun still Open Hardware? on: July 30, 2014, 08:12:08 am
The choice of having a module with headers is not the best choice IMHO. A board with either a Gainstrong GS-Oolite or a Carambola 2 castellated module would have been a much better choice: smaller, more integrated and CE/FCC/RoHS certified...

Check these ones::
http://8devices.com/community/viewtopic.php?f=3&t=685&hilit=yun
https://www.indiegogo.com/projects/dpt-board-linux-and-wifi-becomes-easy
My lack of electronics makes I do not understand your comment.
If I look at the links I see the following:
The first is a shield which has been coming for a couple of months now.
The second has nothing to do with a dual core solution (real time + unix)
I don't know what Carambola 2 and Gainstrong GS-Oolite are.

Best regards
Jantje
5  Products / Arduino Yún / Re: Is the Arduino Yun still Open Hardware? on: July 30, 2014, 07:00:25 am
Actually, the Yùn is selling like hot cakes ....
What is your source for this statement?
Best regards
Jantje
A large distributor in a European country...

Apparently, you can't get any official figures from Arduino, unlike the RPi Foundation: http://www.raspberrypi.org/two-million/.
Thanks.
I really like the yun concept. I only think it is a shame the "arduino side" is a leonard only and not a due, Mega or teensy 3.1.
I have 4 yuns now so arduino can't complain about me  buying clones smiley-twist of which 2 have the leonardo disabled and a mega attached.
If the yun is selling like hot cake I just don't understand why there is so little interest in the Arbor Linux Shield which is a yun shield https://www.indiegogo.com/projects/arbor-linux-shield-an-openwrt-wifi-development-board-for-arduino-other-mcus
At the current rate of 35$ a day this shield will never exist  smiley-cry

Best regards
Jantje
6  Products / Arduino Yún / Re: Is the Arduino Yun still Open Hardware? on: July 30, 2014, 06:23:45 am
Actually, the Yùn is selling like hot cakes ....
What is your source for this statement?
Best regards
Jantje
7  International / Nederlands / Re: sensor schakelt niet goed on: July 30, 2014, 06:16:11 am
de ledjes zende ook IR uit dus vandaar het effect !
feedback van licht triggert de IR sensor ?
 smiley-cool
Het klinkt misschien idioot maar dit is een heel waarschijnlijke verklaring.
Met een buisje op je sensor kan al heel wat verhelpen. Dan moet je de irled wel beter richten. Een mobieltje (met camera) kan je daar dan weer mee helpen.

Jantje
8  International / Nederlands / Re: sensor schakelt niet goed on: July 28, 2014, 05:30:12 pm
je wilt wel input en dus niet output_pullup (als dat al bestaat)
Met vriendelijke groet
Jantje
9  International / Nederlands / Re: sensor schakelt niet goed on: July 28, 2014, 11:33:10 am
Oplossing 1)
een spanningsdeler
onder 2V is voor arduino 0.
als je dus met 2 1K weerstanden (mogen andere waarden zijn maar best in de K grote wegens stroomverbruik) een spanningdeler maakt je van de 5 en 3 volt respectievelijk 2.5V en 1.5V

Oplossing 2
een analoge pin gebruiken en in je code schakelen op basis van de gemeten waarde

1 is volgens mij het beste.

Met vriendelijke groet
Jantje
10  Topics / Home Automation and Networked Objects / Re: Motion detection behind wall on: July 25, 2014, 02:52:29 pm
sounds like a military project to me.
11  Products / Arduino Yún / Re: How to invoke cd command from Process.runShellCommand() : Please advise - Thanks on: July 25, 2014, 10:06:00 am
I'm using cd and I'm not aware of problems.
But I am using cd in scripts that start with
Code:
#!/bin/ash
I strongly advice to separate linux code from arduino code. This means write a script that does all the linux actions and only run the script from arduino.

Best regards
Jantje

12  Products / Arduino Due / What are the possible PWM frequencies? And how to set them. on: July 25, 2014, 06:52:48 am
I have been looking for a simple answer on my simple question: "What are the possible PWM frequencies on DUE?"; but I start to fear there is no simple answer.
The datasheet contains some PWM calculation formula's but my current knowledge is insufficient to even make out I'm looking at the right spot.
The playground contains a PWM cheat sheet http://playground.arduino.cc/Main/TimerPWMCheatsheet unfortunately there is no due section.

I'm considering to move my project from a mega to a due. As 500Hz is to slow for me I'm looking for a simple table like the one below of the cheat sheet. (I expect 2 due to millis() and timer 0)
Quote
Pins 5 and 6: controlled by Timer 0 in fast PWM mode (cycle length = 256)

Setting    Divisor    Frequency
0x01        1        62500
0x02        8        7812.5
0x03        64        976.5625   <--DEFAULT
0x04        256        244.140625
0x05        1024        61.03515625
Is this info available somewhere?

Best regards
Jantje
13  General Category / General Discussion / Re: don't understand the meaning of a warning in a motor driver board user guide on: July 25, 2014, 04:43:31 am
I have a feeling your English is better than theirs.....
Exactly what I was thinking. (In other words:I can't make sense out of it.)

Jantje
14  Community / Website and Forum / Re: He's back! on: July 22, 2014, 12:05:27 pm
I meant that he's not posting as "just" a user, but as a mod.

Pete
I think it is easier to get the moderaor status than it is to get rid of it.
I may be wrong though  smiley-roll
Best regards
Jantje
15  Development / Other Hardware Development / Linux shield for arduino compatible boards=>mega yun and due yun on: July 22, 2014, 08:47:59 am
Look at this shield:https://www.indiegogo.com/projects/arbor-linux-shield-an-openwrt-wifi-development-board-for-arduino-other-mcus/x/2575760
Will I finally get my mega yun and due yun?
Best regards
Jantje
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