Fully Automated Solar Powered Lawn Cutter Robot

Abstract

The solar lawn cutter is a fully automated cutting robotic that is driven by solar energy. It is also capable of avoiding obstructions and is able to cut grass in a totally automated manner without the need for any human interaction. The grass cutter motor and the motors that control the movement of the vehicles are both powered by batteries that have a voltage of 12 volts. In order to charge the battery, we make use of a solar panel. An interface is provided between the motors of the grass cutter and the vehicle, and a Node MCU is used to control the operation of all of the motors. Another application for it is to interface an ultrasonic sensor for the purpose of object detection. In the event that there is no impediment detected, the SoC will propel the bot in the direction of forward movement. Whenever an impediment is detected, the ultrasonic sensor monitors it, and the system-on-chip (SoC) pauses the grass cutter motor. This is done to prevent any harm from being caused to the object, people, or animal, regardless of what it is. To determine the borders, the bot employs a right angle to initiate the start event. This allows it to detect the boundaries. When the bot detects the laser on the opposite side, it comes to a stop, turns at a right angle through the clockwise direction, and then moves on to the next row. The robot performs another right angle turn in a clockwise direction and continues to move forward until it detects the next laser fence. It is the simultaneous detection of both lasers that causes the stop event to be triggered. Due to the current lack of available power, the purpose of this project is to create a portable lawn cutting device that is powered by solar energy. So, we have made the decision to create a device that is powered by solar energy. It is possible to connect the solar panel to the battery.