i am currently doing a project on rfid.
I am suppose to do programming in vb.net 2003/ 2005 to connect the computer to the reader.which is a AR400 reader.
Can i know whether i need to add libraries into vb.net before i can actually use vb.net to communicate with the reader?
if there is a need. where can i find this libraries?
thanks
There are two questions to ask.
Does the vendor of the reader provide any SDK or COMor .NET libraries to use there equipment. If they do then definately use these.
Otherwise it may be possible to access them through the use of something like the SerialPort class (http://msdn2.microsoft.com/en-us/library/system.io.ports.serialport.aspx ) But classes like this are able to simply send and recieve control codes to a device attached to the computer. You would still need to find out from the vendor any commands which you can send/recieve from there hardware.
Either way - contacting your vendor on your specific hardware is probably the first course of action.
AR400 offers both a serial byte stream interface over an RS485 serial
connection and a XML formatted interface over a HTTP connection.
Find the programming manual here. You'll have trouble finding RS485 hardware nowadays, using the HTTP interface over Ethernet is definitely recommended.
