I looked at the R2D2 instructions on my EV3 home edition software but I don't have all the parts necessary. 2 of the parts I don't have are the infrared sensor and remote infrared beacon. Now I figured that if I am to program a robot that will follow me without these 2 components, I would use the ultrasonic sensor, which I do have as a substitute. But then I would probably also need to use the color sensor and I have no idea how my pale skin color would show up when programming the color sensor(probably black because it doesn't recognize it but I don't know).
And how could I get it to climb stairs? I guess I could use the 2 large motors as a source of a pulling force that will pull the whole robot upwards but is there a better way?
