XBee Wireless programming tutorial

XBee projects like the adapter, xBee tutorials, tweetawatt/wattcher, etc. from Adafruit

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Valen
 
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Joined: Wed Aug 05, 2009 3:53 pm

XBee Wireless programming tutorial

Post by Valen »

Hello,

I've read that tutorial on how to wirelessly program microcontroller via xbees (link), and resetting them via linepassing. For that it is adviced to make a solderconnection between the RTS/DIO6 pin with the dio3 pin right next to it. The DIO3 pin of the base xbee (connected to the programmer application like AVRDude) is then 'line-passed' to pin DIO3 on the remote xbee, so it can pull the reset pin of the microcontroller down via a transistor. Now what I do not understand is why bother with this solderjoint? Why is it not possible to set the RTS/DIO pin on the base xbee as input, and linepass that one to the RTS/DIO6 pin on the remote xbee? (and obviously connect the transistor to that pin) Seems like a pointless waste of a digital/analog pin, and spoiling the xbee interface-pcb for other experiments later.

Am I missing something here? Is it a Arduino specific thing perhaps, because I do not have one and know nothing about it. I intend to wirelessly programm an Asuro robot (link, it has an Atmega8L onboard).

adafruit
 
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Re: XBee Wireless programming tutorial

Post by adafruit »

the '125 is in the way. also, the RTS line is used for reprogramming the xbee. you could use any other pin. that one was just the closest

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