FT EZ Receiver for 3Ch Build

[dmco]

New guy here, my boys and I have built several of the 2Ch EZ Flyers and they are great fun. Now I would like to build some of the 3 channel EZ plans I am finding, for example an EZ KrakYak with servo. But FT no longer sells the 3Ch kit. I have the FT 2Ch kit, and looking at the GD00X protocol channel assignment, could I use CH6 to control a servo? Does anyone have a link for the servo that used to come in the 3Ch kit (or similar)?

 

[BadAir]

I keep thinking you should be able to use a magnetic micro servo. It wouldn't be much and would be on or off, but it couldn't hurt.

Polarity 1 = right rudder
Off = Neutral
Polarity 2 = left rudder

How to swap polarity? I can think of some ways, but it might be better to use the motor differential and power a coil either side of the rudder according to how much juice the corresponding motor is getting.

 

[Houndpup Rc]

New guy here, my boys and I have built several of the 2Ch EZ Flyers and they are great fun. Now I would like to build some of the 3 channel EZ plans I am finding, for example an EZ KrakYak with servo. But FT no longer sells the 3Ch kit. I have the FT 2Ch kit, and looking at the GD00X protocol channel assignment, could I use CH6 to control a servo? Does anyone have a link for the servo that used to come in the 3Ch kit (or similar)?

View attachment 253131

I believe those ports there are for the lights...So don't think it would work to control a servo because you want that to be variable...Though you can find the 3 Ch ft kits on eBay sometimes.

 

[dmco]

Great info and ideas, thanks! In my quest for 3+ Ch receivers, I found the AR3201 which looks promising:

CROSSOVER-RX AR3201/ AR3201G V2.0 Type Flysky - A2 Do you need a Compiler NO Do you need the GYRO function NO Do you need a Servo？ NO

AR3201/AR3201G is a kind of highly integrated receiver(built-in two brush 5A ESCs, one receiver, SR3X 3-axis(option), DCDC-5A/1A boosting power). It is very helpful for DIY or rebuilding model airplanes weight between 25-100g.

store.mxo-rc.com

I also found cheaper single-motor receiver/ESC combos that might work, but figured a twin would be easier to retrofit to FT EZ style aircraft.

 

[BadAir]

Great info and ideas, thanks! In my quest for 3+ Ch receivers, I found the AR3201 which looks promising:

CROSSOVER-RX AR3201/ AR3201G V2.0 Type Flysky - A2 Do you need a Compiler NO Do you need the GYRO function NO Do you need a Servo？ NO

AR3201/AR3201G is a kind of highly integrated receiver(built-in two brush 5A ESCs, one receiver, SR3X 3-axis(option), DCDC-5A/1A boosting power). It is very helpful for DIY or rebuilding model airplanes weight between 25-100g.

store.mxo-rc.com

I also found cheaper single-motor receiver/ESC combos that might work, but figured a twin would be easier to retrofit to FT EZ style aircraft.

Post it up. I'm always looking for stuff for my students to use.

 

[dmco]

BadAir, for single-motor, was finding stuff like this around the $15 price point:

VolantexRC Mini Mustang P-51D/ Mini F4U/ Mini P47 RC Airplane Fixed Wing Spare Part 2.4GHz 4CH Receiver Board V2 With On Board Servos Compatible DSM S-BUS Protocol

Only US$14.50, buy best volantexrc mini mustang p-51d/ mini f4u/ mini p47 rc airplane fixed wing spare part 2.4ghz 4ch receiver board v2 with on board servos compatible dsm s-bus protocol sale online store at wholesale price.

www.banggood.com

Upon closer inspection, that might be lacking a receiver?

But I am too impatient to wait for shipping from China. It seems Buzzard Models is a good US-based distributor for the Crossover-RX stuff, so I have an AR3201G and some servos on the way to experiment with.

My goal is to build an EZ raptor with at least one servo, or maybe an EZ Crack Yak style with elevator and rudder.

 

[LitterBug]

Depending on your transmitter, it Might be plausible to bind a second tiny pwm RX for additional channels.

 

[dmco]

@LitterBug that is a great idea, I hadn't thought of that. Only problem is the FT EZ receiver using that weird GD00X protocol. But maybe the 2nd receiver could use ELRS, assuming the transmitter had multiple modules installed. If I can't get the AR3201G working, I might try that route.

 

[LitterBug]

I found a few micro 1S FrSky RXes on clearance a few years back. They have the nano linear servo plugs on the pwm ports. I also have external FrSky XJT and spektrum transmitter modules for dual binding with different protocols.

 

[dmco]

Here is what the AR3201G looks like next to the FT EZ motors (connectors are a direct fit). Haven't weighed everything yet, but these 15320S servos are supposedly 1.7g each. The receiver is actually smaller than the FT EZ receiver. So I am hopeful this might be a good fit to add 1 or 2 servos to some EZ-style planes. When I have time, I am going to try building an EZ Krak Yak and see how it goes.

 

[dkaniel]

A good option is this type of 3 channel rc model that is available on-line. The rx board, servo and TX unit look very similar to what FLITE TEST used to offer for the 3 CH RC Systems.https://usa.banggood.com/QF008-Boei...iIg4PaZ4kIO--nvBUiD4ImlVrv2YHc3gaAhtcEALw_wcB

 

[PeterG]

Late to the thread, but this looks like a 3 channel control board. I haven't tried it yet. Sounds like it takes a servo with a 5 pin connector.

• Bangood link for 3 Ch EZ receiver equivalent
  • mentioned in comment on updated EZ powerpack vid, “it's the xk a100 or xk a120”
  • “make it 3ch by adding qf008 or xk a100 5pin servo” - from reviews
  • Maybe these servos?
  • Qf008 parts including servo

 

[AIRFORGE]

Late to the thread, but this looks like a 3 channel control board. I haven't tried it yet. Sounds like it takes a servo with a 5 pin connector.

• Bangood link for 3 Ch EZ receiver equivalent
  • mentioned in comment on updated EZ powerpack vid, “it's the xk a100 or xk a120”
  • “make it 3ch by adding qf008 or xk a100 5pin servo” - from reviews
  • Maybe these servos?
  • Qf008 parts including servo

"Good stuff, Maynard!"
Thanks, Peter!