This week the motors arrived and I have successfully tested my motor control code from last week. I also did current limiting on motor driver and now the motor can spin in both directions for different speed and distance. I also spend time writing accelerate function of motor, which allows it to gradually accelerate to a bigger maximum speed. Attached is a photo of the motor.
My progress is on schedule this week. Next week we plan to finish communication between RPI and website. Our team also ordered some wood, and are planning to assemble the physical component on the whiteboard next week.
For the motor part, I have already performed unit tests on functionality and latency. Currently, the motor is functional, but latency test performance is not satisfying, because the screw rod is very inefficient in transferring rotation to horizontal movement. We ordered some new rods that are 4x more efficient, and will perform further latency tests later this week.
We are also planning to do some usability tests after we complete building and integrating the system. We will recruit participants and ask them to try out our website’s different functionalities, and ask for their feedback. We will also test latency in camera and projectors, as well as power requirement for RPI and motor.