On Monday 25 June 2007 02:01:09 pm manu suryavansh wrote: > Hi, > I am using tmote sky and I want to use a rechargeable battery with the > motes. I wanted to know is there any specific type of battery I should use > with particular amount of output current. Also if someone can tell me any > voltage regulator/dc dc converter to use with the battery which can give 3v > output.
IIRC, the tmote sky data sheet gives you current draws and voltage requirements. You can use these to match against a given battery chemistry. If you watch out for flash program voltage limits, you'd probably have good luck with NiCad or NIMH rechargeable AA's. Since you mention a regulator, perhaps you are thinking of Lithium? The other chemistries I mentioned cannot exceed the voltage specs for the tmote (3.6v), so you don't need a regulator. You would with many lithium chemistries. I don't have a specific regulator for you, but look carefully at the response curves. On one design we used a regulator with a very low quiescent current (internal power draw), but it couldn't react fast enough to the power demand when the cc2420 was coming on, causing the voltage rails to sag too much and interfering with the operation of some of the other onboard components. Steve _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
