Naze32 Voltage Beeper Question - RCCanada - Canada Radio Controlled Hobby Forum
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Old 08-28-2014, 06:47 PM   #1
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Naze32 Voltage Beeper Question

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This may be a dumb question, but does the acro naze 32 flight control board check all the cells of the lipo to determine which is the lowest when initiating the low-voltage warning beeper?

I'm pretty sure it does, but just to potentially save a lipo i thought i'd ask.

Some of my lipos have a huge deviation between cells, around a .6 volt difference from the highest to lowest cells some time (at the end of a flight, even after being balanced-charged prior). So if it isn't checking the lowest cell, i'll probably end up killing lipo(s).
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Old 08-28-2014, 08:09 PM   #2
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Re: Naze32 Voltage Beeper Question

The connection to the board is only + and -. So, as far as I know, it only monitors the overall pack voltage.

I use one of these (link below) and it's served me well enough in combination with the timer. I need to think about landing soon if I hear it chirp with full throttle... it means that one or all of the cells dropped below 3.3V (under load).

If you land and one of the LEDs is red... you need to check that cell.. they should all be green under no load.
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Old 08-28-2014, 09:38 PM   #3
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Re: Naze32 Voltage Beeper Question

Nope... it (Naze32) only checks full pack voltage.

You can howwever configure what voltage to start the alarm at. So if you have a pack that generally floats down to 3 cells at, say, 3.4, 3.7, 3.8, then you'd need to set the alarm for 10.9.

Also... NOTE ... if you fly your craft with multiple cell count batteries (eg. sometimes with a 2S and sometimes with a 3S) you will need to reprogram/configure the Naze's vbat setting accordingly; otherwise, you increase the odds of burning a battery .

That HK beeper thing isn't a bad idea; however, note that it's warning threshold is 3.3v per cell. You can run a battery down that far, but I'm not sure how good that is in the long run for the battery.

Hope this helps....
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Old 09-01-2014, 03:07 AM   #4
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Re: Naze32 Voltage Beeper Question

just install an E-OSD into the FPV system (and calibrate it). No annoying beep beep beep due to volts sag. Just actually knowing your voltage

could go to Taranis and voltage telemetry, but hey it's a multirotor, so should be FPV
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