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Netduino Plus + ID-20 (again!)


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#1 Jace

Jace

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Posted 15 September 2011 - 02:03 AM

Hi all,

I'm a software developer by nature and have recently started a little Research project. I might warn you, i am an absolute beginner when it comes to electronics, but through a few days of reading I believe I grasp the basic concepts of what I want to do - however, bear with me all the same! :)

So all I want to do, is hook up and ID-20 to a netduino plus and read a couple RFID button tags and capture their RFID in a C# application. But for the life of me I can't do it! And yes, I have read everything to do with the ID-12/20 and the netduino on these forums and the web.

I've tried the code here: http://forums.netdui...ch__1#entry7082

and code here: http://www.hackmeist...egory/netduino/

I do not receive any input. Sometimes it seems as though I receive input and I hit my breakpoints in my code and I receive some arbitrary number of bytes (EDIT: between 1-13), but after calling mySerialPort.Read(...) my buffer still reads 0 for every index in the byte[].

I've wired my netduino plus as follows:
  • ID-20 pin 1 to netduino grnd
  • ID-20 pin 2 to netduino 5v
  • ID-20 pin 7 to netduino grnd
  • id-20 pin 9 to netduino D0
  • ID-20 pin 11 to netduino 5v

I'm using these RFID buttons: http://littlebirdele...fid-button-16mm

I'm not wiring the reset port or an LED - does this matter?

I have not installed the firmware from here: http://forums.netdui...mware-v420-rc1/
Does this matter? I'm currently running version 4.1.0.6

If you need more information, please let me know and I will happily hunt it down. I could have just made a silly mistake! Thanks in advanced, and thank you for building an extensive community here at netduino.com :D

Jace

#2 <Jeremy>

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Posted 15 September 2011 - 08:08 AM

Hi Jace I don't know this component, but I saw this tutorial for the arduino and your component which might be useful (sometimes I find comparing the arduino and netduino implementations useful when I hit a problem). http://bildr.org/2011/02/rfid-arduino/ The first thing that jumped out at me was that your pins are connected similarly to the arduino except for one - you mention that you have Pin 2 connected to netduino 5V, but the arduino has Pin 2 connected to netduino Pin 13. EDIT: I guess you have configured the pins that way to make sure you do just one read so my observation might not help you too much :( But I hope this is something to look into anyway! Cheers, Jeremy

#3 DaveKR

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Posted 02 July 2012 - 07:34 PM

Hi Jace,

did you find a solution ? I have exactly the same behaviour here :-(

David


Hi all,

I'm a software developer by nature and have recently started a little Research project. I might warn you, i am an absolute beginner when it comes to electronics, but through a few days of reading I believe I grasp the basic concepts of what I want to do - however, bear with me all the same! :)

So all I want to do, is hook up and ID-20 to a netduino plus and read a couple RFID button tags and capture their RFID in a C# application. But for the life of me I can't do it! And yes, I have read everything to do with the ID-12/20 and the netduino on these forums and the web.

I've tried the code here: http://forums.netdui...ch__1#entry7082

and code here: http://www.hackmeist...egory/netduino/

I do not receive any input. Sometimes it seems as though I receive input and I hit my breakpoints in my code and I receive some arbitrary number of bytes (EDIT: between 1-13), but after calling mySerialPort.Read(...) my buffer still reads 0 for every index in the byte[].

I've wired my netduino plus as follows:

  • ID-20 pin 1 to netduino grnd
  • ID-20 pin 2 to netduino 5v
  • ID-20 pin 7 to netduino grnd
  • id-20 pin 9 to netduino D0
  • ID-20 pin 11 to netduino 5v

I'm using these RFID buttons: http://littlebirdele...fid-button-16mm

I'm not wiring the reset port or an LED - does this matter?

I have not installed the firmware from here: http://forums.netdui...mware-v420-rc1/
Does this matter? I'm currently running version 4.1.0.6

If you need more information, please let me know and I will happily hunt it down. I could have just made a silly mistake! Thanks in advanced, and thank you for building an extensive community here at netduino.com :D

Jace






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