abish7643 / laverna-v2.0

2nd Gen of Laverna | The Line Follower Bot by 3i INC. A PID Controller along with a QTR Sensor (8 Array Reflectance Sensor). Handles every turn including acute angles with ease.

Laverna V2 | Line Follower Robot | 3i INC

This project is a follow up of a previous project, Laverna. Compared to the previous one, we used a custom 3D printed chassis (Fork of Brandon Makridis's design), invested more into ligher materials & moved to an Arduino Nano for decreasing size and implementing on a breadboard for better modularity.

All turns are independently handled. That means PID is turned off at turns and Laverna uses a simple way of tackling Acute, Obtuse and Right angles.

We secured a place in top 3 positions for 6 out of the 8 participated line follower competitions conducted across different colleges in Kerala during 2019-20. Notables ones are NIT Calicut (Tathva 19), College of Engineering Trivandrum (Escape 19) & CDAC (Techfiesta 2K20).

Images

Prerequisites

1. Qtrsensor 4.0.0 Library
2. Button

All Libraries are included in the repository, upgrade after trying out the included one.

Components we used

1. Polulu QTR-8RC Reflectance Sensor
2. 6V 300RPM Micro Gear Motors and Wheel (x2)
3. Polulu Castor Wheel & Motor Mounting Brackets
4. L293D Motor Driver - IC Only
5. Printed a Custom Chassis (ABS Plastic - White)
   • Chassis Source (Changed The Design To Accomodate Our Components)
   • A3DXYZ India (Printing Costed Approximately 450 INR)
6. Arduino Nano (Select any arduino board with sufficient pins)
7. LIPO 7.4V 850 mAh
8. One Button Switch and One Power Switch

Authors

Abish Vijayan (https://github.com/abish7643/ | [email protected])

Contributers

• Abhijit M ([email protected])
• Adith GM ([email protected])
• Kaveri TS ([email protected])

License

This project is Open Source, Feel free to do whatever you want & also contact any of us if you have any queries.