crazynight
Senior Member
RF is totally new to me!
I am thinking of added RF to my project to send a 4x8 digit string to a 4x7 segment display it will be an add on to this http://www.picaxeforum.co.uk/showthread.php?25755-Read-Temp-and-display-on-a-sure-4x7-segment-display
Moving forward I may want to send the same string to multiple RX's are the RX/TX modules paired out the box? if I wanted 2 displays would I need 2 TX's or do all the RX's listen and receive all the 433 traffic?
I know they are sold as "433MHz Radio Transmitter and Receiver Pair" but the pair could be misleading me
on further search found http://www.picaxe.com/docs/axe213.pdf
but still left me puzzled...if they are paired how can they be 'point to multipoint'....HELP
The communications is also ‘point-to-multi-point’; anything sent by a transmitter
will be received by all receivers. Only one transmitter should be operated at a time
or communications may be unreliable and one transmitter may ‘drown-out’
another. The transmitter board has a ‘transmit enable’ connection which should be
used to enable the wireless transmitter module only when data is to be sent. This
minimises interference and complies with good radio etiquette.
I am thinking of added RF to my project to send a 4x8 digit string to a 4x7 segment display it will be an add on to this http://www.picaxeforum.co.uk/showthread.php?25755-Read-Temp-and-display-on-a-sure-4x7-segment-display
Moving forward I may want to send the same string to multiple RX's are the RX/TX modules paired out the box? if I wanted 2 displays would I need 2 TX's or do all the RX's listen and receive all the 433 traffic?
I know they are sold as "433MHz Radio Transmitter and Receiver Pair" but the pair could be misleading me
on further search found http://www.picaxe.com/docs/axe213.pdf
but still left me puzzled...if they are paired how can they be 'point to multipoint'....HELP
The communications is also ‘point-to-multi-point’; anything sent by a transmitter
will be received by all receivers. Only one transmitter should be operated at a time
or communications may be unreliable and one transmitter may ‘drown-out’
another. The transmitter board has a ‘transmit enable’ connection which should be
used to enable the wireless transmitter module only when data is to be sent. This
minimises interference and complies with good radio etiquette.