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JBkey

Member Since 05 Feb 2015
Offline Last Active Apr 28 2015 02:28 PM
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Topics I've Started

C# help

17 April 2015 - 01:39 PM

Hi.

 

 

I'm stuck with variables format. I know this is a stupid question but I'm on it for 2 hours and I'm losing my mind.

 

I began in this programing stuff maybe 2 months ago, so I'm really new at it.

 

The problem is:

 

I have:

command.Data = new ushort[] { xx, yy, zz };

And I need to do:

ushort zz = System.Math.Tan(c1AngleX);

But the output of System.Math.Tan is "double", so I kinda can't have the "ushort" there.

I tried this

ushort zz = (Convert.ToUInt16 (System.Math.Tan(c1AngleX));

But I can't.

 

 

 

There's any way to convert "double" to "ushort"?

 

 


/Reset

17 March 2015 - 10:57 AM

Just a quick question.

 

 

I'm having a small construction problem that consists on don't having enough space to have the reset button accessible in where I need Netduino to be.

 

The question is, how does the "/reset" pin works? that one between "IOREF" and "3V3". Can I reset my Netduino through there like the same way I do in the button? Or I have to unsold the button and resold another?

 

 

 

 

 

(sorry for the english, for me it makes sense, but I don't know if it is correct)

 

 

JB


Finding bytes in byte array

12 February 2015 - 03:32 PM

Hi!
 
 
I need some advice, and I think this is the right place, if it isn't, let me know.
 
I'm very limited on my programming knowledge, so maybe this is an easy question to answer.
 
 
 
 
I have an array of bytes that contains values like this:
byte [] values {00, 22, 33, 44,  0x55, 55, 66, 77, 88, 99, 10}   
And I need to select a number x of bytes that appear after the 0x55 into another array (I only used hex to differenciate).
byte [x] selec_values { 0x55, 55, 66, 77, 88}
I thought I could search for that byte using "array.find" and I can't. Then I tried to build a list with the array values, and... again, I can't..
 
Does anyone know how I do that?
 
 
 
 
JB

CMUcam5 - Pixy. Anyone?

10 February 2015 - 06:23 PM

HI!

I'm working in a new project and trying to connect Pixy cam to Netduino. 

Has anyone worked with this camera before?

 

 

http://www.cmucam.org/projects/cmucam5


N+2, I2C, write to register

09 February 2015 - 05:36 PM

Hi . :)


I'm a newbie. And I'm not quite a programmer, I'm starting with Netduino and with some help I managed to blink the Led and with Mario's help it's now communicating using modbus (thanks again Mario).


Now I have a new dilemma, I need to receive some data using I2C and writing it to a register. I've studied the code from 

 

http://blog.codeblac...d-with-I2C.aspx

 

I haven't tested it yet, but someone have some other example?

 

 

And Why do I have to put the resistors?
Some time ago I used an Arduino for a similar aplication and it wasn't an issue 

 

 

Thanks in advance.

 

 

JB

 


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