XBee Digital IO Control

Wireless & IoT
1

Does anyone have any experience controlling the IO of an XBee module over the RF link?

I have a couple of XBee Pro modules with 802.15.4 firmware as opposed to ZB firmware. What I want to do is send a serial string into the port of Unit 1 and this should control the digital out on Unit 2.

I can manage to turn the digital IO of the local unit on and off using AT or API commands, but not for the remote unit.

I know that they can be set up to mirror the inputs of one to the output of the other but I want to be able to do it through software without the need for a micro at either end.

I’ve been scrutinising the manuals for these units but they are not as clear as they could be.

I did notice that the ZB firmware has a remote AT command in the API but at this stage I want to stay away from setting up the meshing etc. that is required for the ZB units.

Any thoughts as to where I should be heading?

Greg

2

I wrote my own simple protocol to send an AT command to a distant XBee, and that command went to my microprocessor connected to the Xbee’s serial port. My microprocessor then did the +++AT stuff to execute the AT command and send back the results.

If the distant XBee has no attached microprocessor, I don’t know how to do what you speak of, but it certainly should be possible as that’s the premise!