This is my latest mobile robot that I am calling Big Wheel Bot. I have used 2 x 250mm diameter wheels, with rubber tires to construct a robot platform. For drive to the wheels I have 3D printed large internal spur gears that attach to the wheels.The robot uses an Arduino Nano and an L298 motor driver. The on-board batteries are 2 x 12V SLA batteries connected in series to supply 24V to the motors. The robot also has a Raspberry Pi and webcam on-board for capturing video and logging sensor data as the robot drives around. I am using a HC-05 bluetooth module connected to the Raspberry Pi to take input from a homemade transmitter to control the robot.
Well done! Happy to see you’ve included the steps. Perhaps step 3 can be programming and provide the sample code?
Want to provide the wiring diagram and code for the controller too?
Thank you. I’ve been working on this for the past month or so. Plus some time for making the videos as well. I have managed to get the robot to balance, which I will show in the next video, but adding the castor makes for a much more stable platform to work with.
Thank you again for this inspiring bot - I’ve managed to get my GoPiGo3 bot, Carl, to do the data collection along the lines of your Big-Wheel-Bot. Next will be to understand your path and occupancy grid programs.
Carl’s Occupancy Grid Data Collection ala BigFaceRobotics Big-Wheel-Bot:
The garden robot looks well built. I see that you replaced the internal ring gear, Part 5, with a gear box. Did weeds catch in the gears? I considered a ring gear for the small tractor that I am building but am afraid of entanglements.
