Let's Make Robots!

BlueFarAway


Hi, BlueFarAway is my first attempt of building a robot. It´s like a playground where I can experiment. I got an Arduino for another purpose and wondered how far could I go by using recycled parts, and that became the main objective of this robot. Build it as cheap as possible by using recycled things.

So BlueFarAway has 2 geared motors and wheels borrowed from toys, a chassis made of a CD case box, a ball caster made with mini skate wheels, battery holders from other toys and a dual H-Bridge made of old electronic components. Even the rechargeable batteries are old!!

Even though it works and it´s pretty fast (faster than I´d like her to be). I´m building (and struggling with) line sensors with old TIL 99 phototransistors and “who knows” photodiodes. But´s part of the fun J. If testing succeeds I´ll be adding homemade IR sensors for obstacles so it becomes autonomous.

Here are some Photos:

Buttom View

Buttom View

If you happen to be an ant, this would be yours perpective:

Ants View

Kind regards,

Rodrigo.

 

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Nice begining platform, any chance you can post your schematic for the dual H-Bridge?

 

I appreciate your time.

As you can see I haven´t fully embraced CAD :)

DirL and Dir R are complementary. I use a transistor to ensure they don´t get the same value at any time (what means a PWM shortcut between Vmm and ground...)

Hope it helps

Very cool and speedy little bot! I like that you made use of so many recycled things, and that you are making your own sensors.

Good luck!