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p00ndawg
05-19-2010, 01:06 AM
can this microcontroller:
http://www.parallax.com/Store/Microcontrollers/PropellerDevelopmentBoards/tabid/514/CategoryID/73/List/0/SortField/0/Level/a/ProductID/584/Default.aspx
be used to drive this rfid reader?

http://www.robotshop.ca/apsx-rw-310-rfid-reader-writer-module-ttl-1.html

Im also looking to power 10 range finders, the rfid reader, and a text to voice module. Can this prop board handle it?

forgive me if these questions are very simple, or if I have not provided enough information. This is my first take at a robot.

I will be using this as my base:
http://www.parallax.com/Store/Robots/AllRobots/tabid/128/CategoryID/3/List/0/SortField/0/Level/a/ProductID/666/Default.aspx#

any help anyone can provide is greatly appreciated.

Post Edited (p00ndawg) : 5/18/2010 6:46:38 PM GMT

Mike Green
05-19-2010, 02:09 AM
There's not a lot of detail about the RFID reader and how it connects to a controller, but the Prop board should be able to handle the task since the Propeller works with Parallax's RFID reader and this one can't be that much different. Similarly, the Propeller works fine with Parallax's PING))) which is an ultrasonic range finder and it ought to work with a text to voice module. All of these typically use a logic level interface at either 3.3V or 5V and the Prop board can handle both. The RFID reader and text to voice module use a standard serial interface and the Propeller has several I/O drivers for this. Depending on how much like the PING))) your range finders are, you might be able to adapt existing examples of code for the PING))).

p00ndawg
05-19-2010, 03:32 AM
Mike Green said...
There's not a lot of detail about the RFID reader and how it connects to a controller, but the Prop board should be able to handle the task since the Propeller works with Parallax's RFID reader and this one can't be that much different. Similarly, the Propeller works fine with Parallax's PING))) which is an ultrasonic range finder and it ought to work with a text to voice module. All of these typically use a logic level interface at either 3.3V or 5V and the Prop board can handle both. The RFID reader and text to voice module use a standard serial interface and the Propeller has several I/O drivers for this. Depending on how much like the PING))) your range finders are, you might be able to adapt existing examples of code for the PING))).


Thank you for that. You answered quite a few of my questions, and even some follow up question. I am going to be using PING))) range finders however, so that should be great.
http://www.robotshop.ca/content/ZIP/rfid-direct-talk-application-RW-310.zip This link contains that data sheet for the RFID reader which states these pin conditions:

Pin 1: Ground
Pin 2 & 3: Not Used
Pin 4: 5V (Regulated)
Pin 5: TX (Serial Transmit)
Pin 6: RC (Serial Receive)
Pin 7: Ground
Pin 8: Not Used

I am more than certain the text to voice module will work, because it is actually hooked up to another parallax board at the moment.

Thanks for all the help, if you have any suggestion or comments please feel free to post.

Thanks!