This section presents the design and fabrication of an autonomous lawn mower. The objective is to build a lawnmower with the ability to mow grass in a specified area autonomously in minimum time as possible, while avoiding collisions with obstacles present within the mow area. The obstacles to be taken into consideration are: a flower bed, fenced area, and when a static obstacle is detected, it stops and avoids the obstacle. The main tasks to be achieved are to create a frame, select the proper wheel motors and powering system, integrate the required sensors, implement control algorithms for the motors, and burn a functional and efficient navigational code in the microcontroller, which is able to mow grass in the required field with the help of ultrasonic sensors and digital compass.

BEMTS