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Mode

Name

Notes

r?

General robot modes

   “r0” à “r7”

r0

Modes using the switch controller to guide the robot

 

J0

Forward/backward/spin mode

Left switch controls the left motor and the right switch controls the right motor

J1

Stop/slow/fast  curve/spin forward mode.

No reverse in this mode.

J2

Compound mode.  Switch controller acts a little bit like a joystick of a car driving program on an X-box or PS3 console.

The left switch controls forward/backward movement and the right switch controls left and right movement.

r1

Simple activity modes

 

A0

Run forward

 

A1

Run backward

 

A2

Spin right

 

A3

Spin left

 

r2

Bump modes

 

b0

Line bump

Bump perimeter formed with black tape

b1

Bug line bump

Bump perimeter formed with black tape

b2

Wall bump

Uses switches to detect bump against solid objects

r3

Follow modes

 

F0

Follow black tape lines

 

F1

Follow light source

 

r4

Programming modes

 

P0

Input distance commands from keys

Programming using the robot switches

S0

Run stored sequence

 

S1

Input sequence from keys

 

S2

Save sequence to internal memory

 

S3

Get sequence from internal memory

 

S4

(test mode)

 

P1

Input sequence from a black/white strip

Inputting a program with a barcode card

S0

Run stored sequence

 

S1

Scan a strip of commands

 

S2

Save sequence to internal memory

 

S3

Get sequence from internal memory

 

S4

(test mode)

 

r5

Sketch/drawing modes

 

S0

Draw a spiral

 

S1

Spirograph mode

 

r6

Lab modes

 

L0

Stopwatch mode

 

r7

Distance modes

 

d0

unused

 

d1

unused

 

d2

Calibrate the wheel distance sensors

Necessary before first use of “r4/P0” mode

 

 

 

The modes are shown on the small two character 7-segment display on the robot.   The switches are used to select the mode you wish to use.

Mode

Description

Switch sequence

Notes

J0

Forward/backward/spin driving with switch controller

3A

Used in activity 1

J1

Forward/curve/spin driving with switch controller

2A_D_A

Used in activity 2

J2

Forward/backward/left/right driving with switch controller

2A_2D_A

 

 

 

 

 

A0

Drive forward for a period of time

A_D_2A

Used in activity 5

A1

Drive backward for a period of time

A_D_A_D_A

 

A2

Spin right for a period of time

A_D_A2_D_A

 

A3

Spin left for a period of time

A_D_A_3D_A

 

A4

Run test sequence

A_D_A4_D_A

 

A5

Run demo sequence

A_D_A5_D_A

 

 

 

 

 

b0

Detect and reverse away from lines made from black tape

A_2D_2A

 

b1

Same as “b0” but avoid lines in a manner more like a mouse or a bug

A_2D_A_D_A

 

b2

Detect obstacles with bump switches and reverse away.

A_2D_A_2D_A

 

Read these switch sequences as follows

Evaluating the project is vital for us and our main funding agency, the EPSRC (The Engineering and Physical Sciences Research Council).  This will help us to justify the money and time spent on the project and will provide evidence help keep the project going beyond 2010.  There are two options

 

  1. Use your own evaluation process.
  2. Use our evaluation sheets - available here.

 

We are happy with both approaches.

 

On completion of the project please put the evaluation material in the class kit plastic box.  Also, feel free to email me any additional comments and suggestions.  The more feedback we get, the more we can develop the material.


FAQ  (Frequently Asked Questions)





Ÿ
Interdisciplinary Study Planning Sheet (Bothwell Primary School)
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Copyright © 2009 Jim Herd
Engineering a brighter, younger future
Department of Electrical, Electronic & Computer Engineering
Heriot-Watt University
Edinburgh
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