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> What would the expected battery life of the RCX be while simply sitting in
> a loop calling sleep with large values? I.e. something like this:
>
> while(stillBored)
> sleep(60);
>
> assuming the LCD is cleared and no other tasks are active. Would this
> consume noticeably more power than simply being turned off? I'm not really
> sure what I'd do with this. I have a vague idea about having the thing sit
> around and spontaneously coming to life and doing something, but I'm not
> really sure. In any case, the answer to the question would be interesting.
I measured the RCX consumes about 33mA in ROM or Lego Firmware,
around 26.5mA under LegOS (due to the sleep instruction in the idle task),
and it will use 0.034mA when turned off.
No matter how long you sleep in your task, the RCX will consume interrupts
every 1ms, and the CPU will not be in power down mode, so the sleep will
have no real effect on power consumption.
So, leaving it on will consume a lot more power than turning the RCX off.
Eddie C. Dost
ecd@skynet.be
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Message is in Reply To:
 | | Battery life question
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| I searched through the archives and couldn't find anything that specifically addressed this question, so I figured I might as well ask. What would the expected battery life of the RCX be while simply sitting in a loop calling sleep with large (...) (25 years ago, 26-Mar-00, to lugnet.robotics.rcx.legos)
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