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 Posted: Jul 04, 2012 - 06:27 PM |
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Joined: Sep 04, 2002
Posts: 21257
Location: Orlando Florida
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| Hello rf dudes. I have an arduino uno and an xbee shield. There is a switch on the shield to put the xbee rx and tx to pd0 and pd1 to talk to the avr uart, or to pd2 and pd3 so the mega328 can bitbang 9600 bps into the xbee. Do I need to invert the bits I'm sending (normally done by the max232 that isnt there) and invert the bits I'm receiving? I'm using c and programming with avrdude, so the fact that some gpp library exists in arduinoland helps me not. |
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Imagecraft compiler user
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Posted: Jul 04, 2012 - 11:35 PM |
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Joined: Dec 18, 2001
Posts: 4711
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I don't think so. I use XBees direct-wired to a microprocessor's UART at 115200baud, Digi Binary API mode. Mind the 3.3V interface.
If you anticipate back-to-back incoming 802.15.4 frames, 9600 baud will be a problem - because the XBee and others have a one-frame buffer on the receive side.
(is it a no-no to talk about non-Atmel wireless devices here?) |
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Posted: Jul 05, 2012 - 05:51 AM |
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Joined: Sep 04, 2002
Posts: 21257
Location: Orlando Florida
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| Well, its plugged into an atmel cpu. Does that make it half ok to talk about? Thanks for the confirmation. |
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Imagecraft compiler user
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