Bergen STEM Amateur Radio High Altitude Balloon (ARHAB)

General HAB experiments from other teams are being looked at so as to take notes on what to expect, what to do, and what not to do at the balloon launch. CAD The front component for the camera casing has been modified to include a hole for the power button, display screen, and power light and has been saved as an stl file. While the original plan was to print a copy of the updated version and then print the rest once the dimensioning of the first checks out, it will be more time and cost efficient to cut out the hole in an existing component. A front-view drawing of the component with dimensioning has been compiled through Fusion 360. The hole will be added to a preexisting copy tomorrow. Hardware/Software A circuit board has been successfully printed here in the STEM Research Center. The code for the opening and closing of the motors works, but a timeout code is being developed should the limit switches fail. Cameras Tests are being run to determine the optimal fra...

General The Beta Taurids are normally active from June 5 to July 18. However, we may not be ready to launch the balloon by then. CAD A model of the Hero3+ camera and its standard housing was downloaded to Fusion 360 and the model for the upper casing was updated to include holes for the Hero3+'s power button and display screen. The CAD team also continued practicing using the modeling software. Circuit/Software All temperature sensor errors have been resolved and the temperature coding has been integrated into the main file. The motor for one of the sliding covers is operating successfully. Instead of soldering the components directly onto the board, screw-down terminal blocks will be used for peripheral connections including sensors, switches, and motors. Cameras The cameras have been found to have a tendency to overheat and consequentially shut down. Otherwise, they can run for three hours before failing. Calculations have been made to better process and estima...

Software/Circuit Team was able to run the motor from the code Problems arose with the full implementation of the 3 temperature sensors HAB GitHub Camera The cameras are running from the external batteries to see how long the can last in optimal conditions. CAD Full team brainstorm session in the conference room complete design was looked at by everyone problems and solutions mentioned: suspension support cords decoupled landing impact rods landing feet Looking for a way to push down on the slide/lid to keep a more sterile closing arm which is geared to the main thread gear, driven slower into the opposite direction to push down

Software/Circuit Continued practice with arduino Further testing with 3 temperature sensors Near final schematic unless there are any major problems CAD Josh consulted with Kassem about the changes that were made more changes are being worked on to further weight reduction we wish to start printing by the end of the week The Team also attended a 3D-printing workshop so the printers in the research center can be used.

Software/circuit: Quick crash course in Arduino and electronics (ALL) Experimenting with spare Arduino (MALCOLM) Ran through the code to understand all parts of it (ALL) Managed to get all 3 thermistors working accurately at the same time (LANA) Schematic was finished and now the board layout is being worked on (VITO) CAD Getting familiar with Autodesk Fusion 360 by trying to design given objects Zach - wagon Guery - sword & car Luis - sword Rail support was printed, but turned out too heavy out of the printer in the TECH building  Priority 1 was to shed as much weight as possible by shrinking and cutting after marking all places that we can change to reduce weight. As many eyes as possible are needed on this to make sure we are not missing any obvious and/or unneeded pieces (JOSH&IAN) We will try printing on the LulzBot in the Research Center Camera crew: Located a probable cause in the crashing GoPros will shut off at 125F, so ways to kee...

05/20/2019 Mentor: Professor Paul J. Griffo Location: STEM Student Research Center Time: 8:00 am - 12:00 pm, 1:00 pm - 3:00 pm Members: Luis Cedeno - lcedeno112082@me.bergem.edu Zachary Citti - zcitti@me.bergen.edu Svetlana Doroshevich - svetlanadoroshevich@gmail.com Joshua Grebler, jgreb314@gmail.com Gregory Hee - ghee@me.bergen.edu Vito LaVilla - vlavilla@me.bergen.edu Jonathan Paguay - JohnnyPaguay25@gmail.com Guery Quispe - gquispe104601@me.bergen.edu Ian Reekmans - ian.reekmans@gmail.com Malcolm Shuler - mcshuler121212@gmail.com Nami Uchida - nuchida@me.bergen.edu SubTeams - for now CAD - Josh Gr, Zach, Guery, Luis Circuit/Software - Vito, Lana, Malcolm, Jonathan Cameras - Greg, Nami Things to work: Software: Implement second side of the payload into the code Core logic once everything is combined Maybe - play with accelerometer Circuit: Wire two different temperature sensors CAD: Printing to be done on the printers in the ...