Connecting a RC controller to a robot arm can make controlling it easy and fun. For this project I used a Ironnik KA-6 transmitter and receiver combo. There are other combos that are significantly less expense, but this is a nice quality unit that was available at my local hobby shop. https://www.hobbytown.com/ka6-6channel-transmitter-receiver-hitec-red-mode-2-by-ikonnik-knna1000/p501569
This is a very good blog online that describes how to connect an Arduino Uno to a RC receiver. I successfully used this code to read the signals from the controller and then control the servos from the Arduino board.
http://rcarduino.blogspot.com/2012/04/how-to-read-multiple-rc-channels-draft.html
However, the nice things is that connecting a RC controler to a servo can be done directly. That’s really their primary use, controlling the throttle and other surfaces on model airplanes and cars. There is a very simple robotic arm project on thingiverse. It’s very straight-forward to put together the arm. Rather than using the controller in the project, it can be hooked directly to the RC receiver.
http://www.thingiverse.com/thing:1684471
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