Difference between revisions of "Line follower"

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== Bill of materials ==
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.
* 1 L293D motor driver
 
* 5 QRD1114 IR LED and Phototransistor sensor
Uses elements from analog sensing, digital logic, and driver circuits.
** '''Or''', 5 LED red
 
*** 5 SD5443 phototransistor
* [http://www.youtube.com/watch?v=VlxQkYb_h7w Video of line follower in action] - Youtube video
* 1 BC546B BJT transistor
 
* 2 GM8 motor and wheel kits
== Outline ==
** GMPW Deal
The project had the following outline:
* 2 GMB28 GM8 gear motor bracket
 
* 1 RE210-S1 Protot.card 100x160
* An autonomous unit following a dark line on a bright background
* 1 9v battery connector
* Logic 1 (5V) when detector is over line, otherwise logic 0 (0V), CMOS technology
* 1 LM2937 5v voltage regulator
* Motors controlled by driver circuit
** '''Or''', 7805 5v voltage regulator
* Turn off when no line under detectors
* 3 4071 Quad OR-gates
* Steering right/left accomplished in 3 phases; straight ahead, 5 degree, and 10 degree
** '''Or''', 2 4072 Dual 4-input OR-gates
* Powered by a battery power-source
* 1 4069 Hex NOT-inverters
 
* 1 1N4148 diode small signal
== Report ==
* 1 SWT1 SPDT Switch
Below is the corresponding report and further details. It's in norwegian but it should be possible to translate it using some online service.
* x 10k Resistors
 
* '''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 ==
== Photo gallery ==
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</gallery>
</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