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Topic: Xbee shield variation (Read 667 times) previous topic - next topic

CrossRoads

I'm been asked several times about a wireless version of (my) boards to interface with a PC. I don't have a nice, clean solution.
What I've looked at recently is using XBee Pro Series 1 or Series 2 in transparent mode, I think that's all I need.

On the PC side, Digi has this 802.15.4 module with USB cable
http://www.digikey.com/product-detail/en/XA-A14-CE1P/602-1201-ND/2627825

and Adafruit.com has this module
http://www.adafruit.com/products/247


On the far end tho, that would connect to my board, Digi has nothing that is TTL out. They do have RS232 and RS485 modules, which thne need another module to get to TTL levels.

Adafruit has this one
http://www.adafruit.com/products/126

which looks like with a little fooling around can be made to work, see Step 3 here:
http://www.ladyada.net/make/xbee/arduino.html

What I am considering is rolling my own version that can be plugged directly into the FTDI header of my cards without the extra components; connecting up +5, Gnd, Rx, Tx, DTR like signal, and CTS.
Anyone got any much Xbee experience to see if this makes sense?
I don't want something kind of generic, I want to end up with a specific thing for a specific purpose, so I am not too worried about breaking out all the pins to 0.1" headers. I do plan to allow for battery power when 5V to regulate down to 3.3V is not available.
Size is under 43.5 x 43.5mm, scrunching down even  more is not a goal.
Am also open to suggestions for improvements.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

CrossRoads

Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

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