Since the last update, our team has split into two groups. Group 1 is the Arduino team and group 2 is the control box team. From the Pololu VNH5019’s product page, the Arduino team downloaded the necessary libraries to control the motor driver. After testing the motor driver on a small motor with an analog joystick in the forward direction, we have upgraded to using the Wild Thing’s 12V motor and a digital joystick in the four basic directions. Acceleration has also been added in the code as well as certain motor parameters such as acceleration time and max speed. This is to make it a bit simpler for our project partner and us to test different values for acceleration. That being said, we began to reinstall the motors and the Arduino/motor driver to test the speed. From this testing, we will decide appropriate acceleration, max speed values, and what the four diagonals will do.
For the control box team, we have taken measurements of the Arduino with the motor driver’s dimensions. Since the Wild Thing has limited available space, we decided on the placement location and the orientation of the control box. The team has produced a preliminary Creo CAD design to demonstrate how the Arduino/motor driver will be installed into the housing structure. There will be a top plate, bottom plate, and four beams on each corner to connect the two plates together. Since the motor driver will be outputting several amps of current, we decided on the opening up the four sides of the control box for airflow. If necessary, we will include holes in the bottom of the Wild Thing and install a heat sink for proper ventilation.