R/C car Controller

Thread Starter

beatsal

Joined Jan 21, 2018
425
I have a flysky Trans/Receiver: FS-i6-X Trans. and FS-ia6B receiver. How to use this for controlling a R/C car i.e. For/Rev Speed and Diection (steering) control . The instructions do not cover this, they only cover aircraft. Any help appreciated.
 

Audioguru again

Joined Oct 21, 2019
6,826
No RC airplanes can fly in reverse, a few can taxi in reverse but yours can't. The speed control in an airplane is the same as in a car.
An airplane uses a servo for its rudder for turning. An RC car also uses a servo to turn but maybe it must be more powerful in a car.
 

Thread Starter

beatsal

Joined Jan 21, 2018
425
I am using the tr/rcv as mentioned with a sabretooth 2X25 MOTOR DRIVER. This should be enough just don't know how to actually implement it.
 

djsfantasi

Joined Apr 11, 2010
9,237
I am using the tr/rcv as mentioned with a sabretooth 2X25 MOTOR vehicle DRIVER. This should be enough just don't know how to actually implement it.
The sabretooth 2X25 MOTOR DRIVER can hook up the the receiver, if it’s operated in R/C mode. On page 12 of this user guide, this mode is described.

To steer your car, usually you’d connect an R/C servo to the receiver and provide linkages to the cars steering suspension. And use another channel on the transmitter to control it.

Or if you have a motor connected independently to wheels on both sides of the car, the motor driver can support that. And that’s how you’d steer.

I’d spend some time with BOTH user manuals and become familiar with their capabilities. And if there’s something SPECIFIC you don’t understand, come back and ask.
 

Thread Starter

beatsal

Joined Jan 21, 2018
425
Thanks, this is what I am seeking. I have decided on differential speed of the 2 independent motors for steering. Cannot find any reference to this in the manual i.e. how to set it up for differential steering.
 

SamR

Joined Mar 19, 2019
5,487
Wooooah there fella.
Flysky Trans/Receiver: FS-i6-X Trans. and FS-ia6B receiver. How to use this for controlling a R/C car
That Flysky is an airplane RC transmitter and uses a completely different frequency than the RC vehicles uses. If you start using it for RC vehicles you are gonna have a bunch of very mad RC fliers looking for you for interfering with their frequency and crashing their expensive and time consuming to build aircraft! And wanting your hide or money as compensation! Get an RC Car controller.

Frequencies for Radio Controlled Vehicles in the US (liveabout.com)
 

Audioguru again

Joined Oct 21, 2019
6,826
A guy had a drone with a camera transmitting to his goggles and another guy had an airplane with a camera transmitting to his laptop. The camera frequencies got mixed up and caused both the drone and the airplane to crash.
 

SamR

Joined Mar 19, 2019
5,487
I know the goggles can as they are also xcvrs which by way of logic the laptop would be also. I've also seen people at the flying fields crank up and test their planes without grabbing the frequency chit and cause serious damage. Not sure of the range but I have seen some drone clips that cover a lot of ground so it's pretty far. At least line of sight which can be over a mile. And using goggles and flite cam a whole lot more.
 

LowQCab

Joined Nov 6, 2012
5,101
The Transmitter and Receiver Pair that You have are very inexpensive "beginner" level
devices that are designed to work with only a few select, and very simple, Model-Aircraft.

The Higher-End Transmitters and Receivers are at least ~100-times more complex,
and can control virtually ANYTHING.
These units will require You to understand how to go through the complete procedure
of setting-up every control aspect that You may want.
You will need to learn "Open-TX" and "Beta-Flight" or "I-nav" Software, or similar,
all of which will easily accommodate Cars/Trucks/Rockets/Planes/Quads/Boats, etc..

I'll bet that You didn't even know that You had "Software",
that's because there are few, if any, settings
that You can change/adjust with your present system.

You might be able to get it to do some rudimentary functions on a Car or Truck, if you're lucky.
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Thread Starter

beatsal

Joined Jan 21, 2018
425
Thanks for all the comments; looks like this FS-i6-X systemis not suitable for an RC car. Wonder if there is an RC system that can do what I am looking for i.e. remotely control a toy car using the sabretooth 2X25 motor driver system?
 

LowQCab

Joined Nov 6, 2012
5,101
The trick would be to start perusing the Websites or Forums
where people routinely use the ESC You mentioned.
Probably having more to do with Robotics, rather than RC Trucks/Cars.

Any modern "programmable" Transmitter/Receiver pair can operate your FS-i6-X ESCs,
they can even make it follow a pre-planned course by using GPS.
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KeithWalker

Joined Jul 10, 2017
3,607
The FS-i6-X Transmitter and Receiver are specifically for fixed wing planes and helicopters. The transmitter is programmable but is unsuitable for ground vehicles. Something like this is what you need:
https://www.aliexpress.com/item/100...exp_id=27f19b96-35a1-41d4-8ccc-663eaedcdf2c-0

The motor controller you have can be set to "Mixing Mode" to differentially operate two motors for steering using two channels of an R/C receiver. Here is the operating manual:
https://www.dimensionengineering.com/datasheets/Sabertooth2x25.pdf
 
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Thread Starter

beatsal

Joined Jan 21, 2018
425
Thanks. I will order this, delivery is > 3 weeks. In the meantime, I wonder if the sabre tooth will work with my Arduino UNO. I had progremmed the UNO to work with the Dafurui motor driver, then because it is unidirectional cannot use it although tested OK. Hence, would like to interface my UNO directly to sabretooth if possible but not sure how to interface it with UNO
 

KeithWalker

Joined Jul 10, 2017
3,607
Thanks. I will order this, delivery is > 3 weeks. In the meantime, I wonder if the sabre tooth will work with my Arduino UNO. I had progremmed the UNO to work with the Dafurui motor driver, then because it is unidirectional cannot use it although tested OK. Hence, would like to interface my UNO directly to sabretooth if possible but not sure how to interface it with UNO
Set the motor driver up as though it will be connected to a R/C receiver. Connect an Arduino digital output pin and ground to the motor controller input and ground. The motor controller will expect a train of negative pulses from the Arduino with a length of from 1mS to 2mS with a repetition rate of 18mS. The length of the pulses will determine the speed of the motor.
 

k1ng 1337

Joined Sep 11, 2020
1,038
A guy had a drone with a camera transmitting to his goggles and another guy had an airplane with a camera transmitting to his laptop. The camera frequencies got mixed up and caused both the drone and the airplane to crash.
I was playing with a Bluetooth module and was amazed to see how many devices are operating in it's band in my area. And for 24 hours I had a 2.4ghz transceiver constantly transmit with almost no delay.. with your comment I wonder what if any interference was caused.
 
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