A smart wheelchair gives a person
independence and ease. A smart wheelchair is a
mechanically driven vehicle that can be easily operated
by the user's hand for self-mobility. As a result, using the
wheelchair's wheels requires less effort from the user.
Additionally, this makes it possible for people who are
physically or visually handicapped to go from one
location to another. Only the movement of the person's
hands will allow the wheelchair to travel forward,
backward, left, and right, even if the person's body is
completely or partially paralyzed. The wheelchair and the
person can communicate wirelessly. In order to operate
the experimental version of our system, a joystick that is
attached to a NodeMCU transmitter is used to control the
wheelchair. The wheelchair can also be controlled via
voice instructions sent over Bluetooth from the Dabble
smartphone application. In order to move the wheels in
response to user input, the L298n motor driver needs help
from the joystick signals and voice commands supplied to
the receiver NodeMCU. The L298n that sits in between
the microcontroller and the wheels aids in converting the
voltage needed to operate the wheels.
Keywords : ESP32 Microcontroller, ESP8266 Microcontroller, NodeMCU, L298n Motor Driver, Dabble App, IR Sensor, Obstacle Detection.