Re: i need help

[Zakie Mashiah]

Xbee is a duplex system or two-way communication. It can send and receive data in one module.

On the PC side, you connect it via "Explorer" which basically introduces a serial (COM) port on the PC.

On the Arduino side it is a UART.

So it is going to be straight forward to achieve. Having said that, since this is a security related design, consider encryption of the traffic and well registration of remote devices to the PC. Xbee modules do support encryption. Registration should not be a big challenge either for the PC. The remote units need to know however that the PC is really the authority. You can rely on the encryption only or have additional measures for that.

On Tue, Oct 2, 2012 at 10:47 PM, amel samuel <engame...@gmail.com> wrote:

 i have question i want to design access control system use RFID and  finger print and send data from them to  PC using Xbee and Arduino and my PC Take desicion to permit access and reply to  Arduino  that mean i need to use Xbee as transciever can i make that

please help me if you can 

i need to know how i make that 

--
You received this message because you are subscribed to the Google Groups "xbee-api" group.
To view this discussion on the web visit https://groups.google.com/d/msg/xbee-api/-/APpMJ5ja0TwJ.
To post to this group, send email to xbee...@googlegroups.com.
To unsubscribe from this group, send email to xbee-api+u...@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/xbee-api?hl=en.

--

Zakie Mashiah

Voice:                     +972 9 771 0481

Mobile:                   +972 54 424 4461

Email:                     zmas...@gmail.com

IM:                           zakie_...@msn.com

[amel samuel]

wow , thanks zakie mashiah i am very pleased  for reply me 

i have another question can i send data from RFID and Fingerprint and IR sensor to PC using Xbee

can i make that? what is the module can i use 

[Zakie Mashiah]

You welcome.

The limitation of Xbee is packet size:

For Series 1 it is 100 bytes; Series 2 varies depending on firmware and configuration, but is generally at least 80 bytes

as taken from: http://code.google.com/p/xbee-arduino/wiki/DevelopersGuide

If the data you are going to send is less than that size, you are fine. If more... you will need to layer your protocol with several packets per transmit.

Generally the choice between Series 1 and Series 2 modules are based on the architecture of the network. For simple 2 nodes (one remote and one PC), Series 1 is good. Series 2 is required in the cases where you need much more devices and peer-to-peer between them (at least from your initial description, that does not seem to be the case). Also with Series 1 there is easier way to do remote firmware upload to the Arduino (that is the PC programs the remote device wireless). With Series 2 I think it is  not possible.

After you decided on the right series to use, your next step is to figure out the distance you expect between devices. This will lead you to select the module based on power of transmission. If power consumption is of any issue (like the case of batter powered devices) then this might be more complicated. Also, with Series 2 I know you can have repeaters setup easily, while in Series 1 I am not so sure (you will have to read about that).

One more subtle difference between the two series is the price.

Yours,

Zakie

To view this discussion on the web visit https://groups.google.com/d/msg/xbee-api/-/cOQqP9NSvfgJ.

To post to this group, send email to xbee...@googlegroups.com.
To unsubscribe from this group, send email to xbee-api+u...@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/xbee-api?hl=en.

[ahmad hanis]

currently iam doing my project same like you.. can i have the coding.. these are the sample of my coding but i have no idea how to transmit it.. plezz help me..

On Monday, February 18, 2013 9:25:48 PM UTC+8, Shalitha Chrix wrote:

Amel Samuel im also doing a project related to your one, my one about the same fingerprint reader that is compatible with arduinos and xbees. samuel if you can please help me with the coding. 

and any other  who can help me please rply.
im using a series 1 60mW Xbee module and Arduino UNO R3. please if any one of you have a related coding to use in my project please help. i need to transmitt my fingerprints from the reader through the xbees into my laptop via wireless.