Xbees and rf modules
September 30, 2010
I was thinking about buying a few xbees for my lasertag project but since they're a bit costly i wanted to ask you if it fits my project before buying them.
I'll tell you what i want to to: basically lasertag is a game where there are lots of players that "shoot" at each other with IR pulses. What i wanted to add to it is some sort of "hit feedback", something, be it sound or LED, that tells me whether or not i have succesfully hit my target.
I was planning on having a "server" at the center of the playing field, and an xbee on every player's module. Once a person is hit, his system check the ID of the bullet understanding who shot it, then it sends a "this ID shot me!!111" code to the server xbee, which then sends it back to the ID of the shooter, and finally his system plays a sound.
Couple of questions:
a) is the server really needed or is player to player communication possible? Do consider that number of players might be around 4 per team or more.
b) since these modules cost a lot, could i have a powerful and costly xbee working as the server and cheaper ones on each player's module? Say the server xbee is a 60mW pro and cover 1.5km, does that mean that a player at 1.5km can also have a weaker 500m module or not (as long as he is in range of the powerful server xbee)?
c) is there a better solution to xbees or any tip you'd like to give me?