Custom Walking AT-AT RC Robot Project, Need Help Choosing Hardware

Hello, Everyone!

I will start off with the short version first and then get into the detail. I am wanting to custom build a remote controlled walking AT-AT from Star Wars. I am brand new to the world of microcontrollers but I am a mechanical engineer and have that type of bachelors training and experience with engineering in the appliance industry. So all that to say I understand enough to be dangerous haha. I also am working on this as a hobby and anticipate this will be an ongoing one for at LEAST a year or two. What I could really use guidance on is which hardware I should look into before making any purchases.

Here is a high-level look at what I think is my plan and some of the criteria I am shooting for:

  • Battery Powered

  • Individual motors powering each leg

  • Moveable head

  • Stability control through PID control via feedback from multidirectional accelerometer/gyroscope (My initial thought is to have the legs react to certain feedback from the sensor and attempt to keep itself stable this way, the AT-AT design itself is going to be inherently unstable in the first place so I don’t envision this to be something that will resist much more than basic tipping it may cause to itself)

  • Custom designed, wireless remote control
  • Here are the starting thoughts/questions I have had so far on how to achieve these goals:

  • In the bot itself I envision I will end up needing a relatively powerful main controller and then possibly slaves from there? In the very least the boards for the motors.

  • Should I consider any additional/separate hardware (Is it even a thing?) that would be better able to handle the timing of the legs while they are in motion?

  • Remote control connects via bluetooth? Good or bad idea? Alternatives?

  • What are some obvious things I should think of that you don’t already see listed here?

  • Planning on having the main code built in Python and communicate to Arduino compatible hardware

  • Any good resources and/or video series out there that I should be aware of? I have been heavy into several of Paul McWhorter’s playlists.

  • Thank you for your input! I will post updates as I slooooooowly work my way through this thing if anyone is interested.

    You may find the following links helpful:

    https://www.instructables.com/Remote-Co … Star-Wars/

    https://makezine.com/article/technology … ally-walk/

    These are awesome, thank you for the links!