Servo Motor: Actuation Assignment 2

Description

 
My partner (Michael Hemati) and I, used the servo motors to lift our crawler and reset a walking “spring” of business cards which propelled the crawler as the servo legs were raised.
This design could be improved upon with a more directional friction interaction at the floor contacting end of the spring.
For the code instead of using the pulse width functionality, we used the servo.h library to use servopin.write() command as this allowed us greater control of the servo.
Video

Description:
I worked with Kevin Lessard on this lab. We constructed a walker using two servo motors and just one Arduino. For the body we used a cell phone case and added legs (dowel rods), business cards as springs, and a battery as a counter weight. The dowel rods would lift the casing off the card and would allow the crawler to spring backwards.
Components:
Phone case
2 x dowel rods
Business cards
2 x  servos
1 x arduino
1 x breadboard
Rubberbands
Laptop

Description:

After exploring servo motor with potentiometer, I created lego car which moves by servo. I used two tires to make the car mobile and put stick with rubber to the servo motor.

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DESCRIPTION
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VIDEO HERE

Description:
I wanted to explore motion of the servo motor in different positons. The first thing I tried attaching to the servo motor was a stick that would stick out in a 45 degree angle from one of the arms of the servo motor connecting to the floor. When the Servo motor would move, it would make the motor and the motor's platform move forward slowly. This was not a very effective crawler on flat ground, as the motion was side to side a lot of the forward movement was lost. 

Description:
In this project, a servo motor is used to move a paper cup forward by using a lever.
Video: https://dl.dropboxusercontent.com/u/1993925/CupCrawler.mov
 
Components used:

• (1) Arduino Uno
• (1) Servo motor
• (3) Cables
• (1) Paper Cup

 
Code used:

There are many ways to get the servo to move forward. The method i settled on, was attaching it onto a disc and then a roll of tape so that it could stand up by itself. I found this setup interesting because it doesnt directly use the spinning of the 4-pointed-wheel to propel itself. Instead, it uses the gravity to pull itself forward. When spinning the potentiometer, the servo motor spins and causes the wheel to move forward in order to catch its balance. 
MATERIALS
1- arduino

Description:
I decided to use some parts of an erektor set to make this crawler. The crawler seems to be fast enough to give some real competition to other crawlers out in the wild!

Parts used:

Arduino Uno
1 servo motor
4 parts of the erektor set
 
Code used: