Helicopter/Howard Community College/Fall2011/502 Helicopter 3

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Problem Statement

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Designing and and understanding the mechanism of gimble
Differentiate between the gyro and accelerometer
Also writing many different sketches to understand the differences between the commands used in C++ language.
Build the base of the helicopter, which include arduino, motor shield, batteries, and the emergency stop button.
Innovation of the see-saw gimbal.

Team Members

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Summary

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Week1 Activities involved the following:

Rationalizing Differences and writing sketches for the accelerometer ADXL335 and Gyro-5DOF.
Looking for tutorials to explain those concepts.
Uploading all pictures and files from older group to the Wikiversity.

Week2 Activities involved the following:

Thanksgiving break (we all assumed!)

Week3 Activities involved the following:

Researching for a new sketch since the previous sketches kept on getting errors
Looking for gyro-gimble tutorials
Pushing the see-saw gimble design forward
Uploading the hardware setup of arduino/Gyro-5DOF

Week4 Activities involved the following:

Uploading videos of the the work for the arduino
Putting up previous and new tutorials for the arduino
Uploading pictures of the acclerometer and gyrogimble

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Poster

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Story

We tried our best to accomplish our goal and to solve the problem. Here are the main activities we planned to do:

Week0

Working with the arduino, writing/editing the sketch, and taking pictures and videos. All these weeks, we have tried our best to push the Arduino-Helicopter project forward.

Week1

Looked at the main difference between 1) Accelerometer ADXL335 has x,y, and z axis of rotation and measures the acceleration of each and 2) Gyro-5DOF has 5 Degree of Freedom, meaning x,y,z axis of rotation, and also including X and Y Rates (measures angular velocity and inclination); uploading pictures from previous projects or researching about other completed projects; made an attempt to fix the see- saw gimble.

Week2

Everyone took Thanks-Giving[TURKEY!] break.

Week3

Researching for a new sketch of the Gyro-5DOF and Accelerometer since the previous sketches kept on getting errors; researching new tutorials of arduino and motor control shield; create something that causes the plane to stop it from moving all the way down; took some sticks from an old project, separated it and hot glue the pieces on the support beams of the see-saw gimbel- this causes the plane to have a restricted movement.

Week4

Taking a design of gyrogimbal and starting to build one on our own with some variations to it.

Each individual planned to do different tasks during the weekend and stayed after class for completing the design of the see-saw gimble, base and motor base of the helicopter, and finish writing the gyro sketch.

Material List

12*11mm(r) stick
2x4 Blocks of Wood
Portable electric Saw
10x11 Styrofoam
Markers
Nails or Screws
Drill
Clamp
Electric Sander
PBC Pibe. 3 feet
Hot glue

Software List

Computer- OS=Windows XP
Arduino Software
Serial Chart Programming
Processing Software
Serial Monitor from arduino

Time

Total of 9.5 hours on notebook along with presentations for each individual
Time spent working on completing the see-saw gimbal = 3 hours
TIme spent writing/editing sketches of arduino = 11 hours
Time spent on uploading pictures along with editing Wikiversity = 2 hours

All over time each individual spent doing the project = 25.5 hours and for all = 102 hours

Tutorials

Gimbals-Lock Explained- a brief video explaining how gimbal works and also he uses an aircraft as its center object which clarifies the meaning of using Gimbal when showing the difference between the two devices.
Gimbals-Video Explanation- a brief video which explains the angular rotation of each x,y, and z axis and uses processing software for better view.
Gimbals Picture- a simple picture showing the basic structure of gimbals.
"Quadcopter Prototype using Acc_Gyro and a Pic": is a project tutorial Posted on June 9, 2010 by Starlino. He has completed the same projec, yet using a different system board.
Link to his libraries
Link to the Serial Chart files .scc: the files provide different charts based on their INPUTS/OUTPUTS. The files ONLY support PicQuadController.
Processing Code: the file gives you the code for Processing and only supports PicQuadController.

Next Steps

Each team member did their best to push the project forward and achieve the desired tasks. As part of the project, we have completed building the see-saw gimble to balance the propellers of helicopter. We didn't get enough time to balance the propellers, so it's better for new comers to take over the project from here:

The next part of the project will include the following:

Connecting the base to motors and the arduino system
Connect helicopter to see-saw gimbal and analyze the data
Find a way to incorporate Gyro-5DOF into the helicopter system
Write a sketch that also includes wireless controller
HAVE FUN! (with FRUSTRATION???)