Hi all.
I want to be able to send data across an Xbee link, using several different PICAXE chips.
Each "Node" consists of an 18X chip, programmed with a text message depending on which door has been opened.
The Xbee transmitts the text message across the link, and the receiving end pops up with the message on an LCD. That's a rather simplistic description - there's more to the system and each node then that, but that is it as far as the Xbee link is concerned.
A one-way link works beautifully like this.
2400 baud at all times.
I was thinking along the lines of just paralleling up the serout pins via a passive resistive mixer, the output of which, is then connected to the DIN pin of the Xbee.
My concern is that if 18X chip #1 transmitts it's serial message, this message will appear on the serout pins of all the other 18X nodes(as this is essentially now a serial data-bus arrangement), so I guess what I am trying to ask, is if the PICAXE cares about serial comms present on an output pin from a device OTHER then itself.
Hope I am making some sort of sense here...
I ask at all, as I am just curious if the PICAXE might throw a hissy fit if I connect them together like this, and not really that keen to kill several 18X chips just to find out!!!
ADDITIONAL: I have added a wee GIF of what I am wanting to do...
I want to be able to send data across an Xbee link, using several different PICAXE chips.
Each "Node" consists of an 18X chip, programmed with a text message depending on which door has been opened.
The Xbee transmitts the text message across the link, and the receiving end pops up with the message on an LCD. That's a rather simplistic description - there's more to the system and each node then that, but that is it as far as the Xbee link is concerned.
A one-way link works beautifully like this.
2400 baud at all times.
I was thinking along the lines of just paralleling up the serout pins via a passive resistive mixer, the output of which, is then connected to the DIN pin of the Xbee.
My concern is that if 18X chip #1 transmitts it's serial message, this message will appear on the serout pins of all the other 18X nodes(as this is essentially now a serial data-bus arrangement), so I guess what I am trying to ask, is if the PICAXE cares about serial comms present on an output pin from a device OTHER then itself.
Hope I am making some sort of sense here...
I ask at all, as I am just curious if the PICAXE might throw a hissy fit if I connect them together like this, and not really that keen to kill several 18X chips just to find out!!!
ADDITIONAL: I have added a wee GIF of what I am wanting to do...
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