Battery indicator

Posted on November 30, -0001 by Jacek S

This topic has 14 replies, 6 voices, and was last updated 10 years, 2 months ago by Bernhard Hofmann.

Viewing 15 posts - 1 through 15 (of 15 total)

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November 19, 2014 at 09:37 #4984

Jacek S
Participant

Hi,

Is there any chance for battery indicator?
Now I must remove sdcard and boot oryginal firmware to find out if something is wrong with my program or the battery level is low.

Jacek

November 19, 2014 at 09:45 #4985

Anders Søborg
Keymaster

Hi Jacek

Yes it is possible but I never got around to implementing it. As I remember one of the Unix-Devices (probably the /dev/lms_dcm device) in the sensorManager has access to info about the brick…. you are more than welcome to have a look at it if you are up for it…

/Anders

November 19, 2014 at 09:55 #4986

Jacek S
Participant

Ok, great. I will try. Thanks

March 10, 2015 at 17:14 #5302

Kristofer Jaxne
Participant

I see that MonoBrickFirmware.Management have now support to show battery voltage and current. Can I use that to build an own form of indicator? Isn’t I’m needing some form of reference values of minimum and maximum first?

March 10, 2015 at 19:24 #5304

Anders Søborg
Keymaster

Hi there

No the current is returned in mA and the voltage in mV

/Anders

March 10, 2015 at 20:04 #5306

Kristofer Jaxne
Participant

Do you have any idea of example values for low battery level and just charged?

March 16, 2015 at 18:42 #5312

Anders Søborg
Keymaster

Hi there

Do you have any idea of example values for low battery level and just charged?

No sorry – you will have to try.

March 20, 2015 at 13:24 #5324

Jacek S
Participant

Hi,

From the lego mindstorm source code:

#define BATT_INDICATOR_HIGH 7500 //!< Battery indicator high [mV]
#define BATT_INDICATOR_LOW 6200 //!< Battery indicator low [mV]

#define ACCU_INDICATOR_HIGH 7500 //!< Rechargeable battery indicator high [mV]
#define ACCU_INDICATOR_LOW 7100 //!< Rechargeable battery indicator low [mV]

Jacek

May 17, 2015 at 13:12 #5391

Kristofer Jaxne
Participant

Is there any way to see if connected battery is the rechargeable type or not?

May 18, 2015 at 19:21 #5394

Anders Søborg
Keymaster

Hi

No not to my knowledge…

/Anders

May 18, 2015 at 23:29 #5399

Tcm0
Participant

There is a button at the back of the ev3 that only gets pressed by the akku. It should be detectable somehow.

May 25, 2015 at 14:43 #5408

Anders Søborg
Keymaster

Hi Max

Could you please post a picture of this… I do not have a rechargeable battery.

/Anders

May 26, 2015 at 00:57 #5409
Tcm0
Participant
It’s exactly the same with the NXT’s rechargable battery.
- This reply was modified 10 years, 6 months ago by Tcm0.
- This reply was modified 10 years, 6 months ago by Tcm0.
October 9, 2015 at 05:25 #5514
Bernhard Hofmann
Participant
I wonder what my battery level is. 😉
- This reply was modified 10 years, 2 months ago by Bernhard Hofmann.
October 9, 2015 at 05:34 #5516

Bernhard Hofmann
Participant

Well that didn’t work on my mobile, trying with my laptop now…
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Battery indicator

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