Devo7e work

Welcome to the fold stingrazor
I haven't tried it, but I think you should be able to grab the model bin files using dfuse, powering the TX when holding EXT, and supposedly "upload" will grab stuff from the TX (going on one thing I read, don't have either TX or dfuse here to test)
Or maybe with ENT held you might see the bin files under USB device in a file explorer?

You can grab some stock model bins from the Walkera site as a basis, if the above doesn't work
link

Hmm, I originally read it as asking if a backup could be saved in case you went back to stock firmware, but now I'm not sure. If not, then no, there currently does not exist an easy transferal method.

vlad, I guess the first question is whether anyone has found a way to read a bin file as plain text? Won't know what's involved until we can see if anything correlates in the files. I'd also guess that all of the devo TXs have a different bin format, complicating things.

Maybe a very simple "devo 0-100 range" to "deviation -100 - +100 range" converter could be a useful tool as a starting point? Slot in a 0-100 figure, press Convert, and get the corresponding deviation figure?

I do want a backup but I also need a quick way to document the existing models so I can recreate them after switching firmware.

Ah. Quickest way at the moment is probably pen and paper, and going through the menus systematically.

A bit more elegant than pen paper would be to use the emulator to set up the models with the TX besides. Then you can upgrade to Deviation and copy the models from the emulator to the TX.

Hi guys,

Thanks for the range mod I did it, was pretty easy and also I took the opportunity to add a nice power led to my devo 7e...

On the other hand I would like to know if its feasible to fly a 450 after the range mod without any range problem ?

Some people will kill me for what I am gonna say. For my 450s I am using my DX7 but actually I feel more comfortable with 7E and deviation... Can you guys confirm me that ? Or I should expend some money on a 8S.

Thanks all!

Lyndros wrote: Hi guys,

Thanks for the range mod I did it, was pretty easy and also I took the opportunity to add a nice power led to my devo 7e...

On the other hand I would like to know if its feasible to fly a 450 after the range mod without any range problem ?

Some people will kill me for what I am gonna say. For my 450s I am using my DX7 but actually I feel more comfortable with 7E and deviation... Can you guys confirm me that ? Or I should expend some money on a 8S.

Thanks all!

With the range mod there shouldn't be any real difference in range compared to a devo 10/8.

Hopefully someon e that has done a propper range test with a dsm2/dsmx/walkera fullsize reciver can awnser.

I have only done a range test with the master cp and got to ~140m. But the mastercp has a single tiny antenna.

Can you please provide some info on the Power LED (what part, where connected...)?
Thanks

Lyndros wrote: On the other hand I would like to know if its feasible to fly a 450 after the range mod without any range problem ?!

Our tests have shown the maximum power output of the Devo8s and a modified Devo7e is about the same. One difference is the antenna, on the Devo8 one can tilt the antenna up to be perpendicular to the line of sight to the model. If you hold the Devo7e upright so the antenna is also perpendicular to the model, you should get similar distances.

you should also be able to remove the plastic antenna cover, and position the Devo 7E antenna as you like.

Though beware of getting crap in the tx, so you might have to plug up the hole.

Currently doing a battery test with my devo 7e with diode mod and flysky module.

I left my 2700 mah nimis charging overnigh.

I set my tx to dsm2 / 100mw tx power
I enabled the backlight at level 1.
Voltage started at 5.40V

It is now currently at 4.90V after 2h 35m and 19 seconds.

Will do a update again when it hits 4.70V

Edit: 3h 25 minutes.

I'm interested in your results. I used LSD NiMH packs for a while but I came back to LiPO, my Devo 10 is lighter and I can recharge my 2500mah pack every week or so, maybe 2 weeks if I don't fly a lot.

I never exactly measured but I think I get around 10 hours of full 100mw, 15% backlight on flight time.

Xermalk wrote: Currently doing a battery test with my devo 7e with diode mod and flysky module.

I left my 2700 mah nimis charging overnigh.

I set my tx to dsm2 / 100mw tx power
I enabled the backlight at level 1.
Voltage started at 5.40V

It is now currently at 4.90V after 2h 35m and 19 seconds.

Will do a update again when it hits 4.70V

sbstnp wrote: I'm interested in your results. I used LSD NiMH packs for a while but I came back to LiPO, my Devo 10 is lighter and I can recharge my 2500mah pack every week or so, maybe 2 weeks if I don't fly a lot.

I never exactly measured but I think I get around 10 hours of full 100mw, 15% backlight on flight time.

Xermalk wrote: Currently doing a battery test with my devo 7e with diode mod and flysky module.

I left my 2700 mah nimis charging overnigh.

I set my tx to dsm2 / 100mw tx power
I enabled the backlight at level 1.
Voltage started at 5.40V

It is now currently at 4.90V after 2h 35m and 19 seconds.

Will do a update again when it hits 4.70V

Doesn't the Devo 10 run a ~50% higher voltage? it uses 6 AA battery's instead of the 7E's 4.

A 2500mah pack for the 10 will last much longer then 2500 mah for the 7E.

Edit: I'll drain mine down to 4.2V and see what happens.

Edit2: 4.7 -> 4.4 10 Minutes.
4.4 -> 4.2 4 Minutes
Total 3 Hours 39 Minutes from 5.4V to 4.2V

Is uses 8xAA. That's double the wattage, theoretically. No idea about losses, though.

My Devo 10 used to become unreliable around 1.05V/cell or 8.2V. Usually I was recharging well before that but I did a few experiments just to find out how far I can stretch the pack.

What I don't like about NiMH is the self discharge rate. Even LSD cells still have much much higher self discharge compared to LiPOs.

Xermalk wrote:

sbstnp wrote: I'm interested in your results. I used LSD NiMH packs for a while but I came back to LiPO, my Devo 10 is lighter and I can recharge my 2500mah pack every week or so, maybe 2 weeks if I don't fly a lot.

I never exactly measured but I think I get around 10 hours of full 100mw, 15% backlight on flight time.

Xermalk wrote: Currently doing a battery test with my devo 7e with diode mod and flysky module.

I left my 2700 mah nimis charging overnigh.

I set my tx to dsm2 / 100mw tx power
I enabled the backlight at level 1.
Voltage started at 5.40V

It is now currently at 4.90V after 2h 35m and 19 seconds.

Will do a update again when it hits 4.70V

Doesn't the Devo 10 run a ~50% higher voltage? it uses 6 AA battery's instead of the 7E's 4.

A 2500mah pack for the 10 will last much longer then 2500 mah for the 7E.

Edit: I'll drain mine down to 4.2V and see what happens.

sbstnp wrote: Is uses 8xAA. That's double the wattage, theoretically. No idea about losses, though.

My Devo 10 used to become unreliable around 1.05V/cell or 8.2V. Usually I was recharging well before that but I did a few experiments just to find out how far I can stretch the pack.

What I don't like about NiMH is the self discharge rate. Even LSD cells still have much much higher self discharge compared to LiPOs.

Xermalk wrote:

sbstnp wrote: I'm interested in your results. I used LSD NiMH packs for a while but I came back to LiPO, my Devo 10 is lighter and I can recharge my 2500mah pack every week or so, maybe 2 weeks if I don't fly a lot.

I never exactly measured but I think I get around 10 hours of full 100mw, 15% backlight on flight time.

Xermalk wrote: Currently doing a battery test with my devo 7e with diode mod and flysky module.

I left my 2700 mah nimis charging overnigh.

I set my tx to dsm2 / 100mw tx power
I enabled the backlight at level 1.
Voltage started at 5.40V

It is now currently at 4.90V after 2h 35m and 19 seconds.

Will do a update again when it hits 4.70V

Doesn't the Devo 10 run a ~50% higher voltage? it uses 6 AA battery's instead of the 7E's 4.

A 2500mah pack for the 10 will last much longer then 2500 mah for the 7E.

Edit: I'll drain mine down to 4.2V and see what happens.

Im using NiMh's as i don't really mind using them, and i have several spares around.

As im using the built in charger in the Devo7E their usually well charged for when i want to go out and fly.

Hi Xermalk,
I recently got a FS GT3B tx for my RC CARs,and I found something might help,Someone changed voltage regulator from 7805 to RECOM R-785.0-0.5 high efficiency regulator,it could extend battery life ~50%.
Could it be used in DEVO7E ro DEVO10?

info:
overkillrc.webs.com/gt3b.htm
Voltage Regulator Modification section.

Thanks.

dc59 wrote: ....Could it be used in DEVO7E ...
Thanks.

7e doesn't need that. It can operate on as low as 3.7V.. I used 1S to power my 7e for more than two months now..

cmPang