Description: This is the very popular 2.4GHz XBee module from Digi. These modules take the 802.15.4 stack (the basis for Zigbee) and wrap it into a simple to use serial command set. These modules allow a very reliable and simple communication between microcontrollers, computers, systems, really anything with a serial port! Point to point and multi-point networks are supported.
Not sure which XBee module or accessory is right for you? Check out our XBee Buying Guide!
Note: If you are using these outside of the United States, please check with your local laws regarding radio communication.
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I bought this after first purchasing the on chip antenna model. I later found that if you have a PCB with a ground plane under the on chip antenna, it would cause problems. It definitely did! Rather than redesign my PCB, I switched to the wire antenna and it works great.
One thing to note, the PWM output on these has a period of 15KHz which is too fast for some microcontrollers to interrupt upon accurately. It will cause a stack overflow at the least. However, you can use a resistor and capacitor filter on the PWM output to make it a stable linear analog voltage for your signal. I use this to control an R2D2 using an analog thumbstick without any issue.
I’ve been learning both the xbee 1 and xbee 2. It is far easier to use the 1 which is very easy to set up in a simple network. I especially appreciate the support videos from Sparkfun. I used them to help pave the way to understanding the xbee protocol. Sparkfun rocks!
Two of these combined with the XBee Explorer Serial and right out of the box you’ve got a wireless serial connection….Now, if there was handy enclosure for them