Tiny Core Base > CorePlus

Battery monitor or icon?

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Juanito:
updated watcher posted - thanks

On my machine (dell e7240) running tc-10.x, I get this:
--- Code: ---$ ls /sys/class/power_supply/BAT0
alarm               current_now         present             uevent
capacity            cycle_count         serial_number       voltage_min_design
capacity_level      device              status              voltage_now
charge_full         manufacturer        subsystem
charge_full_design  model_name          technology
charge_now          power/              type
--- End code ---

..and:
--- Code: ---$ ls /sys/class/power_supply/AC
device     online     power/     subsystem  type       uevent
--- End code ---

It looks like watcher is calculating C% from either charge_now or energy_now divided by either charge_full or energy_full.

I get 1742000/2457000=71%, but the watcher display varies slowly between 6.7% and 7.2% - i.e. a factor of 10 out?

Rich:
Hi Juanito
The calculation code looks correct:

--- Code: ---sprintf(batmsg, " %.1f%%B", (float)(batnow / batfull) * 100);
--- End code ---

BAT0  looks like the correct value to pass to watcher.

Rich:
Hi Juanito

--- Quote --- ... It looks like watcher is calculating C% from either charge_now or energy_now divided by either charge_full or energy_full. ...
--- End quote ---
You mean %B. %C is the CPU. Did you start watcher like this:

--- Code: ---watcher -bat BAT0
--- End code ---
to tell it where to find the battery?

Juanito:
doh  :-[

It works now (and matches flit) - thanks

..but constantly repeats this to stdout:
--- Code: ---$ ./watcher -bat BAT0
Error opening batinfo /sys/class/power_supply/BAT0/energy_now
Error opening batinfo /sys/class/power_supply/BAT0/energy_full
--- End code ---

Rich:
Hi Juanito
Maybe I should remove that error message? It seemed like a good idea at the time but it really isn't an error unless the
fallback values (charge_now and charge_full) can't be read. It's late here but if you'd like I'll clean up the error handling
and submit an update tomorrow.

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