L293D motor driver – Kathmandu University Robotics Club

HUSKY : An Automatic Fighting ROBOT An automatic fighting robot (also known as Sumo bot) is a bot that fights (destructive or non-destructive) and damages or push the opponent bot out of the arena. The bot that fought in our side was named “HUSKY” and it was a non-destructive sumo bot that fought with the opponent bots of the same kind. The major electrical & electronics components used in “HUSKY” include : The casing was made of sheet metal of various guage thickness and weight density to maintain the specified weight limitation of 3 Kg of the bot. Similarly, the specified dimension was 25 cm*25 cm*25 cm and that limit of dimensions and weight was fulfilled. The bots were needed to fight inside the arena of 2 meter diameter with 5 cm wide black line at the edge of the arena. Team

KU Turtle

project / March 5, 2024

KU Turtle KU Turtle is a line following robot that could also be controlled manually using any Bluetooth devices. KU Turtle represented KURC in Yantra5.0 in the category Yantra Racer. The major electronic components included are: Arduino Uno: A micro-controller based on ATmega328 microprocessor. Lithium Polymer (Li-Po) battery: Used for its high power to weight ratio. DC Geared Motor: A normal brushed DC motor fitted with gears to increase torque in expense of speed. The motors (four), KU Turtle possessed were of 100 rpm, 12 V. L293D motor driver IC: To control the DC motors (Speed and direction). Photodiode Module: A sensor to detect the color black or white (i.e. IR reflecting or absorbing). In our case we used three active photodiode module for more accuracy. Bluetooth Module: The bot was connected to a Bluetooth device via Bluetooth and controlled by an android app. The casing was prepared from aluminium pieces and Polyethylene Terephthalate (PET). KU turtle is a line following robot prototype whose actual application can be realised. Team Members

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