You could piggyback new leads on to the battery pack. Either two (or more) packs in parallel (each pair of series batteries in parallel with anoter pair). With the rechargeables, three cells will put you right at the 3.6v limit. I would suggest calculating a resistor at 90mA to drop the voltage from 3.9v to ~3.0v.
Perhaps you may want to look into other batteries for programming. Standard AA Alkaline should be doing it. There are also Lithium 1.5v (Like Energiser e^2) that provide higher currents and energy density. Companies also make Lithium-ion rechargable AA's, you're probably using NiCad. -Ben -- For some reason, the United States is the only country on Earth where accidents don't happen it's always somebody's fault, and you can sue that somebody for neglect. On Tue, October 10, 2006 10:36 am, Daniele Munaretto said: > Dear all, > just now, with new devices (finally..), i'm trying to figure out how > to solve the current-voltage requirement to use the flash on my micaz > motes, tinyos-1.x. > Well, the rechargeable batteries haven't enough voltage (1.2-1.3V) but > really good current (80-90 mA each one, but in series, so it is the > current of the sum..), the normal batteries have good voltage but not > enough current (only 20-30 mA)..and i need minimum 2.7 V and 70 mA for > the flash usage. _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
