In this voice operated grass cutter robot Project, we have used Arduino Uno board and Bluetooth to receive the voice commands from android mobile with help of the android app, 4 Channel relay circuit board to make motor H-bridge circuit for driving 4 DC Motors to make the robot move in multiple directions.
The entire communication is happening with the help of Bluetooth modules.
we have placed cutter blade in the bottom to cut the grass.
Working Operation of the grass cutter robot:
Step 1: Switch on the robot.
Step 2: In android mobile open the android app (voice-controlled application).
Step 3: In that app select voice control option and speak “forward, Backward ” etc… based on the commands robot will respond on the ground.