- Posts: 4402
In search of the ultimate Devo7E
18 Jun 2015 03:03 #34252
by PhracturedBlue
In search of the ultimate Devo7E was created by PhracturedBlue
Thanks to Jon Barter, I ended up with a spare Devo7e, and I decided it was time to do an ultimate build to create the best possible 7e transmitter.
Here are my plans:
1) Replace the MCU with a STM32F103RCT6. This will give my 7e 256k FLASH and 48K RAM (smae as a devo10)
2) Add 2 3-way switches
3) Remove the CYRF module, and add my UniversalTx module.
I have now completed step (1) with great success. I need a custom build, but all the features of the Devo10 are available, and no need to muck around with protocol directories. I still suck at soldering QFP packages, but after 2 attempts and a lot of time with solder wick, I got the MCU replaced.
I realized too late that I don't have any 3-way switches I can use. I already scavenged the good ones for previous upgrades, so I can't do step 2 until I get some (and now that RadioShack is gone, I'll need to order some in).
As for the UniversalTx, I still only have one fully functional module (which I need for testing), but I'll try to build another one this week and see how it goes.
I'm looking forward to having a Devo7e the way it should have been designed originally
Here are my plans:
1) Replace the MCU with a STM32F103RCT6. This will give my 7e 256k FLASH and 48K RAM (smae as a devo10)
2) Add 2 3-way switches
3) Remove the CYRF module, and add my UniversalTx module.
I have now completed step (1) with great success. I need a custom build, but all the features of the Devo10 are available, and no need to muck around with protocol directories. I still suck at soldering QFP packages, but after 2 attempts and a lot of time with solder wick, I got the MCU replaced.
I realized too late that I don't have any 3-way switches I can use. I already scavenged the good ones for previous upgrades, so I can't do step 2 until I get some (and now that RadioShack is gone, I'll need to order some in).
As for the UniversalTx, I still only have one fully functional module (which I need for testing), but I'll try to build another one this week and see how it goes.
I'm looking forward to having a Devo7e the way it should have been designed originally
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18 Jun 2015 05:33 #34260
by greenfly
Replied by greenfly on topic In search of the ultimate Devo7E
If you are going to spend that much on switches from Digikey, why not use Walkera originals?
http://www.ehirobo.com/walkera-transmitter-replacement-switch-3-position-20mm.html
Besides you probably get the added benefit of having to wait for them to come from across the world.
http://www.ehirobo.com/walkera-transmitter-replacement-switch-3-position-20mm.html
Besides you probably get the added benefit of having to wait for them to come from across the world.
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18 Jun 2015 10:31 #34273
by RoGuE_StreaK
Replied by RoGuE_StreaK on topic In search of the ultimate Devo7E
Is this the one? ebay US$2.10 shippedPhracturedBlue wrote: 1) Replace the MCU with a STM32F103RCT6. This will give my 7e 256k FLASH and 48K RAM (smae as a devo10)
Daryoon seems to have become the 7E god, hadn't looked into the 7E in a while and stumbled across his thread yesterday; well over 230 pages worth!PhracturedBlue wrote: Daryoon posted some links on RCGroups...
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18 Jun 2015 11:21 #34277
by racemaniac
Replied by racemaniac on topic In search of the ultimate Devo7E
If we can get official builds for devo 7e modded with the stronger mcu, i would definitely upgrade mine too . Sounds like an awesome mod to make .
A mod that i'll soon add to my devo 7e that might also be a suggestion: i'm goingto add 2 regular pushbuttons that i'll wire in parallel to the original 2 way switches. I currently fly toy quads, and i like their flip mode, but controlling it with the current switches just sucks. So either on the bottom of the remote, or on the shoulders i'll add 2 push buttons so i can easily toggle those channels off and on for flip mode (or whatever else i can think of to use those buttons. Maybe for a quad with a camera to take a picture, stuff like that).
. Sounds like an awesome mod to make .A mod that i'll soon add to my devo 7e that might also be a suggestion: i'm goingto add 2 regular pushbuttons that i'll wire in parallel to the original 2 way switches. I currently fly toy quads, and i like their flip mode, but controlling it with the current switches just sucks. So either on the bottom of the remote, or on the shoulders i'll add 2 push buttons so i can easily toggle those channels off and on for flip mode (or whatever else i can think of to use those buttons. Maybe for a quad with a camera to take a picture, stuff like that).
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18 Jun 2015 12:25 - 18 Jun 2015 12:29 #34284
by PhracturedBlue
Note to anyone considering this: It isn't as easy as just replacing the MCU. You also need a way to install the bootloader. I use a STLink/V2 (~ $25). You can get chinese no-name SWD programmers for ~$10 from ebay though.
It isn't hard; I just documented the procedure here:
www.deviationtx.com/forum/6-general-disc...-7e-bootloader#34250
But it is an additional expense.
Replied by PhracturedBlue on topic In search of the ultimate Devo7E
That s the one.RoGuE_StreaK wrote:
Is this the one? ebay US$2.10 shippedPhracturedBlue wrote: 1) Replace the MCU with a STM32F103RCT6. This will give my 7e 256k FLASH and 48K RAM (smae as a devo10)
That is unlikely. The number of users willing to do this mod would be really small. If you are capable of upgrading the MCU, then you are capable of installing the build system and building the updateracemaniac wrote: If we can get official builds for devo 7e modded with the stronger mcu, i would definitely upgrade mine too
Note to anyone considering this: It isn't as easy as just replacing the MCU. You also need a way to install the bootloader. I use a STLink/V2 (~ $25). You can get chinese no-name SWD programmers for ~$10 from ebay though.
It isn't hard; I just documented the procedure here:
www.deviationtx.com/forum/6-general-disc...-7e-bootloader#34250
But it is an additional expense.
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18 Jun 2015 13:46 #34292
by grnd flyr
Think you're right mwm, I've already removed the stock module in preparation for the S-MOD module... cornfused with all these new "things". I'll wait & watch...
Replied by grnd flyr on topic In search of the ultimate Devo7E
mwm wrote:
grnd flyr wrote: Thought I read some where that there isn't enough room in the 7E case to fit a Universal module or is this something else you cooked up?
You may be thinking of the multimodule. I don't believe that will fit in the 7E with the RF modules plugged in, but IIRC someone managed to do it by running cables from it to each of the RF modules.
Think you're right mwm, I've already removed the stock module in preparation for the S-MOD module... cornfused with all these new "things".
I'll wait & watch... Please Log in or Create an account to join the conversation.
18 Jun 2015 14:20 - 18 Jun 2015 14:20 #34298
by racemaniac
.
I'll have a look at binding it to the other buttons, still learning all the possibilities of deviation, and maybe that's indeed a better option.
Replied by racemaniac on topic In search of the ultimate Devo7E
I'm still a newbie, so i'm sure there are far more impressive things than the toyquads loop modes. But i saw an x5c video where someone did some more advanced stuff with it by cutting throttle during the loops, making nice double loops and barrel rolls, and it's quite impressivemwm wrote:
racemaniac wrote: I currently fly toy quads, and i like their flip mode, but controlling it with the current switches just sucks.
Personally, I detest flip mode, and much prefer the various Blade Qx's agility mode, which lets me do a lot more than simple flips. On the Nano Qx, I use the Ext button to toggle between modes. If it's just a feel issue, you might consider using one of those instead. Actually, you might consider wiring your extra button in parallel with one of those instead of a switch, as using a switch means your button type (momentary or toggle) will be whatever the button is. But if you use a Tx button, those can be programmed to be either momentary or toggle.
.I'll have a look at binding it to the other buttons, still learning all the possibilities of deviation, and maybe that's indeed a better option
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18 Jun 2015 16:31 #34307
by Cereal_Killer
I'm more than capable of the soldering, that's simple [for me, yes even 44pin TQFP and QFN's!] but I have yet to complete building from source. I've tried several times, I've got everything needed (as well as your new MinGW stuff) yet I've still not got threw the process... Admittedly I'm not devoting much of my time to learning, it's something I've currently been putting off cause I'm happy with the nightlies... I really hope that you'll (and the other contributors) will be willing to put our releases for this for people like me!!! As you may have saw I'm waiting on parts for add-on POT's for the 7E via PPM but if the new MCU would allow direct analog input's that's be amazing and I'd pretty much just stop work and devote that time to trying to help out on this.
Thanks man, really really excited about this!
Taranis X9E | DEVO 10 | Devo U7E | Taranis Q7
What I do in real life: rivergoequestrian.com/
Replied by Cereal_Killer on topic In search of the ultimate Devo7E
PhracturedBlue wrote: That is unlikely. The number of users willing to do this mod would be really small. If you are capable of upgrading the MCU, then you are capable of installing the build system and building the update
Note to anyone considering this: It isn't as easy as just replacing the MCU. You also need a way to install the bootloader. I use a STLink/V2 (~ $25). You can get chinese no-name SWD programmers for ~$10 from ebay though.
I'm more than capable of the soldering, that's simple [for me, yes even 44pin TQFP and QFN's!] but I have yet to complete building from source. I've tried several times, I've got everything needed (as well as your new MinGW stuff) yet I've still not got threw the process... Admittedly I'm not devoting much of my time to learning, it's something I've currently been putting off cause I'm happy with the nightlies... I really hope that you'll (and the other contributors) will be willing to put our releases for this for people like me!!! As you may have saw I'm waiting on parts for add-on POT's for the 7E via PPM but if the new MCU would allow direct analog input's that's be amazing and I'd pretty much just stop work and devote that time to trying to help out on this.
Thanks man, really really excited about this!
Taranis X9E | DEVO 10 | Devo U7E | Taranis Q7
What I do in real life: rivergoequestrian.com/
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18 Jun 2015 18:36 - 18 Jun 2015 18:41 #34314
by RedSleds
The thing about having the momentary buttons up on the corner/shoulders of the Tx, is that you can activate them with your index finger without taking your thumbs off of the sticks (if you are a thumb flyer). The trouble with using the EXT, UP, DN, L, or R, buttons, is that you have to take your thumb off one of the sticks momentarily to use them.
I have been using the RUDD D/R two-way for the flip channel when the rates are 100% only, and the FMODE0, FMODE1, FMODE2 switch for three rate modes, both of which can be operated without letting go of the sticks. It just takes a few times using them to get used to it without looking down to see what you are doing. The down side though, is having to remember to flip the switch back after you are done flipping. That is why a momentary switch would be preferable, once you let go of it, you are out of flip mode and don't have to worry about accidentally flipping if you move the cyclic stick too close to the maximum throw.
DEVO 10 - Multi-module with nRF24L01 +PA +LNA, A7105 +PA, & CC2500 +PA +LNA transceivers.
Nightly Build: v4.0.1-548bbf5 (6/9/2015)
Replied by RedSleds on topic In search of the ultimate Devo7E
racemaniac wrote:
I'm still a newbie, so i'm sure there are far more impressive things than the toyquads loop modes. But i saw an x5c video where someone did some more advanced stuff with it by cutting throttle during the loops, making nice double loops and barrel rolls, and it's quite impressivemwm wrote:
racemaniac wrote: I currently fly toy quads, and i like their flip mode, but controlling it with the current switches just sucks.
Personally, I detest flip mode, and much prefer the various Blade Qx's agility mode, which lets me do a lot more than simple flips. On the Nano Qx, I use the Ext button to toggle between modes. If it's just a feel issue, you might consider using one of those instead. Actually, you might consider wiring your extra button in parallel with one of those instead of a switch, as using a switch means your button type (momentary or toggle) will be whatever the button is. But if you use a Tx button, those can be programmed to be either momentary or toggle.
I'll have a look at binding it to the other buttons, still learning all the possibilities of deviation, and maybe that's indeed a better option
The thing about having the momentary buttons up on the corner/shoulders of the Tx, is that you can activate them with your index finger without taking your thumbs off of the sticks (if you are a thumb flyer). The trouble with using the EXT, UP, DN, L, or R, buttons, is that you have to take your thumb off one of the sticks momentarily to use them.
I have been using the RUDD D/R two-way for the flip channel when the rates are 100% only, and the FMODE0, FMODE1, FMODE2 switch for three rate modes, both of which can be operated without letting go of the sticks. It just takes a few times using them to get used to it without looking down to see what you are doing. The down side though, is having to remember to flip the switch back after you are done flipping. That is why a momentary switch would be preferable, once you let go of it, you are out of flip mode and don't have to worry about accidentally flipping if you move the cyclic stick too close to the maximum throw.
DEVO 10 - Multi-module with nRF24L01 +PA +LNA, A7105 +PA, & CC2500 +PA +LNA transceivers.
Nightly Build: v4.0.1-548bbf5 (6/9/2015)
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