Month: September 2022

Three schematics were developed, a schematic for the onboard robot, for the onboard power station, and for the Raspberry Pi 4 workstation. Two schematics were developed for the onboard robot–one for a robot with 2 motors with encoders and another with 4 motors without encoders. This is because the group has not finalized the mechanical design of the chassis yet.

Besides the motors, other important components include the servos which we intend on using to create an automatically open enclosure for medical supplies, cameras to be used for the raspberry pi, and temperature and humidity sensors. We intend on using an Arduino Mega for motor and sensor control.

This week our team was able to add the DC motors (without encoders) back onto the metal chassis frame. The original wires of the motors needed to be lengthened and tied together, which we were able to accomplish by soldering them to wires within conduits and using electrical tape to cover the junctions.

We were able to set up the Arduino-motor circuit from within the base frame, and used a simple code script to test the motion of the motors with the wheels on the prototype. The video below shows how the wheels and motors were able to spin in both directions, and at differing speeds when designated.

Rover Camera

As we were testing out the rover motors we were looking at camera options to buy. Although we want a stereo camera that works with the raspbery pi. at the moment it might be a bit out a budget to we are planning to look further into the single camera options with some infrared sensors to help with night time object detection.

Stereo Camera Option

Single Camera Option (with infrared sensors)