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H-bridge/Arduino link

http://m.youtube.com/watch?v=vgATCIQYla0

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Tasks today:
Nigel- Putting switch, batteries, & circuit wires in the robot.
Joepy-Working on a line code
Eric-shape measurements
By Friday, our robots will be moving and gathering codes. We will showcase a simple code for the robot to draw a line. The rough draft for the code is shown here.

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3/15/12

Nigel-finished soldering, so he is now hooking the chip to the robot batteries.
Joepy-working on the new Arduino design code.
Eric-Measurements for the new design and the robot marker hole.

New design

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This new design, instead of the original “barn” design, will allow us to break the drawing up into two steps to be able to repeat one step.

Robot Drawing

Our drawing that our robot is going to make is a barn. This is a common puzzle where people are told they must draw the shape without lifting their pen/pencil off the paper or re-drawing lines.

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Joepy- Programming
Nigel- Finishing Soldering
Me- Making robot drawing rough draft

Arduino

Arduino is the programming software that we will be using to move our robots. It uses a language similar to C++. By transferring the code to the robot, we will move according to the directions written.

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2/23/12

Today…
Joepy- Continuing the Arduino code
Me- Working on engineering video
Nigel- Continuing soldering

Video Due Tomorrow- H Bridges

H bridges coordinate diagonally, with the top left of one side linked to the bottom right. They are programmed using highs and lows, so if one side is high and the linked opposite low, the robot would move forward (switching the lows and highs would make the robot move backwards). To stop the robot, you either make both sides high or both sides low.

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In the binary number system, the numbers follow a series of ones and zeros. The different places have different numbers applied to them, starting at 1 and multiplying by two (1,2,4,8,16…). So if you were to write the number 143, it would be 10001111.