Wireless chips: Difference between revisions

Revision as of 14:19, 1 July 2009

Various wireless chips are available for electronics projects. Here is a brief comparison.

Name	Frequency	Data rate	Range	Current	Pros	Cons	Price
XBee	2.4 GHz (IEEE 802.15.4)	250 kbps	~90m	? mA		Fast Easy to use P2P mesh network No configuration needed for serial communications 128-bit AES encryption DigiMesh protocol available	Slightly expensive Maximum of 8 nodes per coordinator ("hub")	~$23
Nordic WRL	2.4 GHz	20 kbps	Personal area	30µA	max 65000 simultaneous connections on Shared Channel Network Many network topographies supported Drop in serial interface	max 4 2-way simultaneous connections No built in encryption	~$20
Holy Stone ASK RF	315 MHz / 434 MHz	2400 bps/ 4800 bps	~150 meters	3.5 mA	Really cheap Drop in serial communications	Assymetric design; recievers are not transmitters Only one transmitter per network Non-open frequency Fairly large package	~$10 per pair

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 Various wireless chips are available for electronics projects. Here is a brief comparison.
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