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. The robot uses an Arduino Nano and an L298 motor driver. The on-board batteries are 2 x 12V SLA batteries connected in parallel. 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. I would like this robot to become a gardening robot, taking soil moisture samples and tracking the growth of plants in the garden.
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/big-wheel-bot