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Dec 24, 2012, 08:38 AM
Micro Helicopter Electrician
1Hammer's Avatar
Quote:
Originally Posted by KillerCut
Strange. Does the v2 have a red and green mode?
Yes and telemetry.

Regards and Merry Christmas,
John
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Dec 24, 2012, 09:33 AM
i'm pretty sure everyone says the v2 doesn't have telemetry...
Dec 24, 2012, 01:28 PM
Micro Helicopter Electrician
1Hammer's Avatar
Quote:
Originally Posted by KillerCut
i'm pretty sure everyone says the v2 doesn't have telemetry...
Mine does. I set the Ladybird battery alarm on my Devo10 to 3.7V and I get 6-8 minutes flying time.

Regards,
john
Dec 25, 2012, 09:57 AM
Registered User
Quote:
Originally Posted by BD Murdock
Here's the reply I got from Walkera about v1.2 & v1.2...I've always found communication with China a bit challenging...perhaps the V2 birds have v1.2? I dunno...
Thanks for the info Murdock. ( I also enjoyed their Christmas spelling typo hehe )
Dec 25, 2012, 02:09 PM
Get Airborne
Conducted some electrical measurement on The LadyBird QR V1.
All measurements on the quad 240mAh battery with Fluke 179.

Battery connected TX off 4.16V 4.35mA P=0,18W

Battery connected TX on, telemetry inhibited 4.16V 4.35mA P=0,18W

Battery connected TX on, telemetry ON 4.16V 4.35mA P=0,18W

Battery connected TX on, telemetry ON, propellers spinning 3,95V 85mA, P=0,34W

Battery connected TX on, telemetry ON, just before takeoff 3,95V 1200mA, P=4,7W


Conclusion:

Telemetry enabled does not consume (current) battery power from quad.

Standby current consumption is very small (0,18W).

Awerage power consumtion, 8 minute flight is aproximatly 6.5W.

Maximum standby time before the battery is hurt (or when the GREN/RED LED is out) 240mAh/4,35mA= >55h. If you loose the bird, search when dark for the red or green LED.

Quote:
Originally Posted by FDR_
The QR Ladybird v1 already had a telemetry enabled firmware when it came out.
There is no fw for it without telemetry.

The rest since the LB came out without telemetry, but it is probably to not have to have an FCC id, which is an expensive procedure.
If the user upgrades it to send telemetry, it will be his reliability...

While with a non-telemetry fw it will consume less power, I think it is nearly negligable to the power consumed by the motors...
Dec 25, 2012, 03:07 PM
Registered User
FDR_'s Avatar
Quote:
Originally Posted by Stenkryparen
Conducted some electrical measurement on The LadyBird QR V1.
All measurements on the quad 240mAh battery with Fluke 179.

Battery connected TX off 4.16V 4.35mA P=0,18W

Battery connected TX on, telemetry inhibited 4.16V 4.35mA P=0,18W

Battery connected TX on, telemetry ON 4.16V 4.35mA P=0,18W

Battery connected TX on, telemetry ON, propellers spinning 3,95V 85mA, P=0,34W

Battery connected TX on, telemetry ON, just before takeoff 3,95V 1200mA, P=4,7W


Conclusion:

Telemetry enabled does not consume (current) battery power from quad.

Standby current consumption is very small (0,18W).

Awerage power consumtion, 8 minute flight is aproximatly 6.5W.

Maximum standby time before the battery is hurt (or when the GREN/RED LED is out) 240mAh/4,35mA= >55h. If you loose the bird, search when dark for the red or green LED.
Yep, that's what I expected.
However it doesn't tell you anything about how much power the telemetry itself consumes, because the LB will always send telemetry data. You can't switch it off.

It would be more interesting to make this measurement with some other aircraft, for which exist both telemetry enabled and disabled fw, for example the spacewalker...
Dec 25, 2012, 03:51 PM
Get Airborne
As a comparison I also measured a MJX X100 (no telemetry but 4 LEDs), stand by consumption 4,6 mA.

The LB QR V1 telemetry power consumption is negligible, and don't affect flying duration. I think its a nice feature that should be used.
Dec 25, 2012, 05:36 PM
Registered User
Wow. Appreciate the time you took to research this. Great to see the data.
Dec 26, 2012, 02:12 AM
Registered User
That's looks brilliant!
Dec 26, 2012, 03:14 PM
Quad guys are 4x the fun :)
BD Murdock's Avatar
Just started messin round with my new Devo 7E. This is gonna be fun I can tell. I've already gotten yaw to aileron adjusted nicely, handles very differently than with the 2402D.
Dec 26, 2012, 03:16 PM
Registered User
muck76's Avatar
Quote:
Originally Posted by BD Murdock
Just started messin round with my new Devo 7E. This is gonna be fun I can tell. I've already gotten yaw to aileron adjusted nicely, handles very differently than with the 2402D.
good or bad different?
Dec 26, 2012, 04:47 PM
Quad guys are 4x the fun :)
BD Murdock's Avatar
Quote:
Originally Posted by muck76
good or bad different?
Once you figure out how to adjust the Tx to get the LB to react the way you want it to it's only better. At first, it's like starting from scratch but it doesn't take long to get the hang of it. Put it this way...this is the first programmable transmitter I've owned and since I started flying with it I've burned three packs and haven't crashed yet lol. I'd read that the 7E was pretty intuitive to program and it is.
I'm still fine tuning the rudder and aileron inputs and starting in on the telemetry next.
Dec 26, 2012, 05:45 PM
Registered User
I have a 7E as well now (Christmas present) and I remember reading somewhere, someone had written the settings on the forum for the LB. Any idea where that could be? or, if you or someone else knows, can you post them again please?
Dec 26, 2012, 06:37 PM
Registered User
I was gonna say Murdock, it's alot easier than the Devo 7 as well imho. I haven't had a chance to mess with mine anymore, as I loaned it to a friend the other day as he's getting interested in flying.

Gave him a choice of transmitter to take for a few days,,, he passed over the 2402D and the devo 7. The nicer looking screen caught his attention lol.


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