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46  Using Arduino / Sensors / Re: HYT 221 from Hygrosens Instruments on: March 21, 2012, 01:41:17 pm
I got a document where it is described how to change the address however I can't managed it to get
work....
Maybee you can help me since you are somehow familiar with the I2C interface and the HYR Sensors.

here is the link:
www.ibrutech.ch/Change_Address.pdf

Andy
47  International / Deutsch / Re: Sensor an der I2C Schnittstelle on: March 21, 2012, 12:56:58 pm
Hallo GekoCH,

zu wenig Input, wie bitte soll Dir jemand helfen können? Wie wäre es wenigstens einmal mit der Bezeichnung des Sensors und/oder dem Datenblatt?


Habe das Dokument doch angefügt, es sit wohl nur sichtbar wenn ihr eingeloggt seit.

Gruss
48  Using Arduino / Sensors / Re: HYT 221 from Hygrosens Instruments on: March 21, 2012, 11:00:21 am
pls google since I don't know where you're from in europe you get it from every electronic store...
49  Using Arduino / Sensors / Re: HYT 221 from Hygrosens Instruments on: March 21, 2012, 10:47:35 am
just take any HYT they 221 is an old one so use the 271.
 I'm currently using this one too.

50  Using Arduino / Sensors / Re: HYT 221 from Hygrosens Instruments on: March 21, 2012, 10:39:24 am
ok found the problem. It does work with Arduino v1.
In 0022 you have to cahnge wire.read to wire.receive and wire.write to wire.send and then it does work smiley

However I got another question.
Does someone know how to change the Adress of one sensor?

Thx
Andy
51  International / Deutsch / Sensor an der I2C Schnittstelle on: March 21, 2012, 10:14:10 am
Hallo zusammen

Wollte die ID aus einem Sensor auslesen habe dafür ein Datasheet gekriegt wo drin steht wie es gehen soll
doch irgendwie begreiffe ich das nicht...
Kann mir jemand helfen wie ich die Command richtig an den Sensor sende damit der auch mir antwortet.

Danke das wäre super,
Andi
52  Using Arduino / Sensors / Re: HYT 221 from Hygrosens Instruments on: March 21, 2012, 08:06:21 am
thx but hmm for which version of the Arduino is this since for my Arduino IDE 0022 it doesn't work...

HYT221.cpp: In member function 'uint8_t HYT221::read()':
HYT221.cpp:33: error: 'class TwoWire' has no member named 'write'

andy
53  Using Arduino / Sensors / Re: HYT 221 from Hygrosens Instruments on: March 21, 2012, 01:02:35 am
I saw this code but it is not working, it is printing always the same values messured at the first time.
So the Code from above does work better.

Andy
54  Using Arduino / Sensors / Re: HYT 221 from Hygrosens Instruments on: March 20, 2012, 05:50:39 am
Hy

zhx for the example. However why do we need the delay of 100ms since when
I do remove this the sensor does still work???
I know it is written in the manual but I see no difference.

Thx
Andy
55  Using Arduino / Project Guidance / Re: Data over video stream on: March 03, 2012, 04:37:15 pm
Quote
Didn't know that this is working this way
Sorry, I assumed you were talking about analogue composite PAL/NTSC/SECAM style video.

If you are, get used to something like an LM1881

Yes it would be a PAL signal and yes I just read about the LM1881 hmm lets see how I can deal with that...
56  Using Arduino / Project Guidance / Re: Data over video stream on: March 03, 2012, 04:30:50 pm
Like teletext, you send the data in BLANKING.
Didn't know that this is working this way, ok so this would be a solution.
Now I do need the components...
57  Using Arduino / Project Guidance / Re: Data over video stream on: March 03, 2012, 04:23:26 pm
Very low bit-rate data in blanking?

Hmm wouldn't this disturb the video signal itself. You should still get a clean Video
without interference....
58  Using Arduino / Project Guidance / Data over video stream on: March 03, 2012, 04:17:41 pm
Hy

Is it possible to send data over a video Signal?
So on one side of the Arduino the raw video signal is coming in. The
Arduino does attach some information.
And than a second Arduino could detect this data in the Video signal
and process it...
How can I achieve this?

Thx
Andy
59  Using Arduino / Programming Questions / Re: math and cosinus on: January 06, 2012, 08:52:21 am
ahhhhh sorry for that but how could I miss that!!!

Thx a lot you saved me a lot of time smiley
60  Using Arduino / Programming Questions / math and cosinus on: January 06, 2012, 08:42:23 am
Hy

Hmm I like to calculate the cos-1() but when I use acos the result is wrong.
So: cos-1(500/1000) => 60° the Arduino does calculate 90° why?

This is the code:
Code:
float alpha = acos(500/1000);
int grad = alpha*57.2957795131; //is the same as (180/pi)
Serial.println(grad);

What am I doing wrong?

THx
Andy
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