Last Updated on September 25, 2019 by technoreview85
Hello friends today I am going to describe how you can make a basic line follower robot using Arduino Uno & L293 motor driver board
You need to make
- Arduino Uno
- IR sensor module
- L293d motor driver board
- 2wd robot chassis
- Castor wheel
- 150 rpm geared motor & wheels
- Connector wire & jumper wires
- 9Volt battery or lithium-ion battery or power bank
- black tape for making the line
- Arduino code
Buy all parts together as a KIT from here
Connection of robot
- Left & right motor connect to l293D motor driver board
- 2 IR sensors vcc to Arduino 5volt
- 2 IR sensors gnd to gnd
- Left IR sensor signal out pin to Arduino Digital pin 2
- Right IR sensor signal out pin to Ardiono Digital pin 3
- Motor driver board Left input pins to Arduino Digital pin 4 & 5
- Motor driver board Right input pins to Arduino Digital pin 6 & 7
- Motor driver board 5 volt to arduino 5 volt & gnd to gnd
- Motor driver board 12 volt input to a 9 volt battery & gnd are common to all gnd

Download the code
Download the Arduino code for line follower robot.copy all from txt file. Open Arduino IDE,creat a new file & paste the code. select board as arduino UNO.chose your comport & upload it to Aarduino.
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Well I really enjoyed studying it. This information provided by you is very helpful for accurate planning.