Wednesday, April 10, 2019

Week 9_4/10/19

This week, we were supposed to present but their wan't enough time to do so. We plan to present next week.
the housings were designed so the switch can fit snug into the space that is there and screws will be drilled into the housing to keep it in place on the bogie. I worked on the integration of the ultrasonic sensor with the master code.

Week 8_3/27/19

We had presentations this week, but the last half of class was used for moving the rest of the tracks from campus to Superway. Our group could not present this week.



Over the past week, I had helped Oscar with designing limit switch hosuing. Oscar and Hector 3-D printed the housing for the hall effect sensors, limit switches and the ultrasonic sensors at work, but there was a lot of flash on these pieces. I was able to help Matthew get these piece finished by the end of the day.  We also added extra stuff to our presentation for next week.

Figure: Limit switch fixture designed in SolidWorks.

Week 7_3/20/19

This week Oscar, Hector and I tested the code for the stepper motor. The code for the stepper motor was worked on and various adjustments were made to the code. To verify the new code, one of the bogies that had the stepper motor was connected to the Arduino and tested. The video of the testing has been posted below.

Week 6_3/13/19

Our group presented this week. We got things moving on the mechtronics side. I finished my code for the ultrasonic sensor and Oscar helped me integrate it with Master Code.


I was able to execute the prepared a schematic of the connections of the ultrasonic sensor with the Arduino in Fritzing.


Week 5_3/06/19

We had presentations this week but ran out of time for our team. Our team narrowed down the tasks for each member. My task was to code the ultrasonic sensor for the bogie to detect any objects that were in front of it, to warn the user about any objects the bogie was approaching by displaying messages on the serial monitor and also stop the bogie to restrict the user from proceeding further and causing a possible collision. I read through many online forums and gained more knowledge about how the ultrasonic sensor functions and how to structure my code.

This week, I was able to narrow down the logic of my code and was able to construct a flow chart on the basis of that logic. The flow chart below shows the logic of the code.

The code I wrote was as follows:


Week 4_2/27/19

This week, I was able to connect a printer with the PC we found during week 1. We used the PC to print important motor and track dimension calculation data. This week I also started working with Oscar and helping more on the mechtronics side, so that we can get things moving on the mechatronics side as well. We used the last half of class to tidy up the place and organize things. I also started preparing for the presentations that are coming up next week.

Week 3_2/20/19

This week Mathew and I measured the track length to which the track should be shortened for MakerFaire. The track will need to be shortened to about 18' long and 4' tall meaning that the bogie will be traversing less of the track than it was originally planned to.
I performed additional calculations to figure out the new design specifications which our team could achieve over the course of the semester. I also figured out the mechnics of how this would be happening and which sensors would be necessary for the bogie to achieve this task.