I really didn't know what to put as the subject, so I apologize if it's misleading.

I'm looking for devices that I can wirelessly control from my computer. I really don't know how to explain it. Nothing fancy. For example, if I wanted to build a robot that is able to go forward/backward/turn left or right and possibly send output back for, I don't know a video feed maybe. I'm not looking for the actual robot, just a device that can tells the robot what to do when it receives input wirelessly.Well, it totally depends on what you are trying to do, there are purpose built systems like Zigbee but there's also nothing to stop you using Bluetooth or WiFi for this, it all depends on what  you need it to do in terms of cost, power consumption and RANGE.  The robot would then just have some sort of computer/microcontroller that has support for whatever wireless system you decide to use.  For example, if you were to use an Arduino you can get MODULES for WiFi, Bluetooth or pretty much any other wireless standard that exists.

There are also RF systems such as those from Ciseco which is what I used when I did a very similar project however there is no error checking so this creates a lot of additional work as commands can get randomly corrupt/lost in transmission (especially when a lot of these devices are in use at once in the same location).  Something like WiFi or Bluetooth would be a lot easier in this respect.Thanks for the reply! This information is really helpful! But to narrow it down since you've said "Depends on what your doing", I'm just experimenting(with a very low BUDGET I might add)! As I'm very interested in computer engineering.

I'll continue on what you've given me here, but if you have any other helpful information, it would be greatly appreciated!I am a Robotics Coach for a local school that has a Robotics Team. We get a kit from www.usfirst.org that we then use to build our robot from. Our robots are controlled wireless for the High School Robotics and for Middle School Robotics they use the Lego Mindstorm controllers. Years ago we use to use the Basic Stamp processor for the radio controlled robots, then they went to the Basic Stamp II and then last I knew they were using the Arduino Leonardo++ microcontroller as seen here: http://www.16hertz.com/product/16hertz-leonardo-plus-plus/

The only problem with dabling with wireless controlled devices for robotics is that unless you take an already existing product that is mass produced and low cost and hardware hack it, creating something from scratch without hardware hacking/modding already existing devices, the price can easily go beyond what you can afford to work with.

There are companies out there that sell wireless robotic platforms to build on from without having to create one from complete scratch, but entry level into this is in the $1200 range. http://www.superdroidrobots.com/shop/category.aspx/wifi-robots/90/

If your looking to have a computer control a robot wirelessly, the lowest cost solution I could think of would be to get a low cost toy RC Car and use its controls for left/right, forwards/backwards which probably runs at like 27mhz radio frequency, and use the motor/solenoid control from the car in your robot. Then take the normally hand held controller that has the 2 joy sticks for left/right steering and forward/backward motor control, and get a Serial or USB Controlled Relay board such as the following 4-Channel which would allow for Right, Left, Forward, Backward movement with each relay controlling an action. This is the cheapest I could think of that would work for you. If you want the robot to be able to do more than just move around, you would need more channels to control as well as add additional radio controlled hardware. http://www.ebay.com/itm/like/281027911107

But for around $100 you could take an already existing computer, RC Car gutted for radio control and electro-mechanical guts, and a relay controller and have a radio controlled robot through computer. * If going this hardware hack/mod method, I'd keep the RC Car intact at first and get your PC to interface with the Relay Control board that is hard wired to the handheld radio control for the RC car. Then dig into the programming that is involved to control your car on the floor. Once you have it all working correctly and know how to program it to control it from the computer through this 4 channel relay control which controls the hand held RC Car radio controller, then you can carefully gut the RC Car to make your robot from it.

Hope this info helps. I have helped students make low cost robots by buying low cost devices and gutting them to use for alternate hardware Hack/Mod purposes. 

*** Lastly this low cost radio controlled robot has no fail safe for its radio communications though. Most RC Cars/Planes etc do not have authentication to verify that the signal they are receiving is the signal your giving them and so if there are other devices in the area that emit a signal that the radio control takes as a positive command, the robot will move on its own without your controlling of it. This disclosure is on just about all RC toy devices in the manual anyways. Quote from: AlienNova on July 27, 2015, 08:54:57 AM

Thanks for the reply! This information is really helpful! But to narrow it down since you've said "Depends on what your doing", I'm just experimenting(with a very low budget I might add)! As I'm very interested in computer engineering.