Difference between revisions of "Line follower"

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== Bill of materials ==
[[Image:Line_follower_view.jpg|500px|right]]
* 1 L293D motor driver
A line follower built for as part of an electronics course, ELE103 at UiA. Design and construction is done from scratch and uses only analog sensors to direct itself around course made of black tape.
* 5 QRD1114 IR LED and Phototransistor sensor
 
** '''Or''', 5 LED red
Uses elements from analog sensing, digital logic, and driver circuits.
*** Phototransistor
 
* 1 BC546B BJT transistor
* [http://www.youtube.com/watch?v=VlxQkYb_h7w Video of line follower in action] - Youtube video
* 2 GM8 motor and wheel kits
 
** GMPW Deal
== Outline ==
* 2 GMB28 GM8 gear motor bracket
The project had the following outline:
* 1 Circuitboard
 
* 1 9v battery connector
* An autonomous unit following a dark line on a bright background
* 1 LM2937 5v voltage regulator
* Logic 1 (5V) when detector is over line, otherwise logic 0 (0V), CMOS technology
** '''Or''', 7805 5v voltage regulator
* Motors controlled by driver circuit
* 3 4071 Quad OR-gates
* Turn off when no line under detectors
** '''Or''', 2 4072 Dual 4-input OR-gates
* Steering right/left accomplished in 3 phases; straight ahead, 5 degree, and 10 degree
* 1 4069 Hex NOT-inverters
* Powered by a battery power-source
* 1 1N4148 diode small signal
 
* 1 SWT1 SPDT Switch
== Report ==
* x 10k Resistors
Below is the corresponding report and further details. It's in norwegian but it should be possible to translate it using some online service.
* '''Or''', RT20k 20k Multi-turn trimpot
 
* [http://beta.ivancover.com/electronics/ele103_logisk_krets_for_linjefoelger.pdf Line Follower report May 2010] - In norwegian, PDF
 
== Video ==
The video below shows how the line follower works.
 
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== Photo gallery ==
 
<gallery>
Image:line_follower_01.jpg
Image:line_follower_02.jpg
Image:line_follower_03.jpg
Image:line_follower_04.jpg
Image:line_follower_05.jpg
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Image:line_follower_09.jpg
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Image:line_follower_12.jpg
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Image:line_follower_18.jpg
Image:line_follower_19.jpg
Image:line_follower_21.jpg
</gallery>

Latest revision as of 09:21, 31 August 2019

Line follower view.jpg

A line follower built for as part of an electronics course, ELE103 at UiA. Design and construction is done from scratch and uses only analog sensors to direct itself around course made of black tape.

Uses elements from analog sensing, digital logic, and driver circuits.

Outline

The project had the following outline:

  • An autonomous unit following a dark line on a bright background
  • Logic 1 (5V) when detector is over line, otherwise logic 0 (0V), CMOS technology
  • Motors controlled by driver circuit
  • Turn off when no line under detectors
  • Steering right/left accomplished in 3 phases; straight ahead, 5 degree, and 10 degree
  • Powered by a battery power-source

Report

Below is the corresponding report and further details. It's in norwegian but it should be possible to translate it using some online service.

Video

The video below shows how the line follower works.

Photo gallery