Control of Wheeled Robots with Bluetooth-Based Smartphones

Abstract

Wheeled robot is a robot that can run on a flat surface with the help of wheels as a driving medium. The robot is made using Arduino as a programming brain, where the robot can move forward, backward, turn right, and turn left with a smartphone via Bluetooth module. It is controlled via a smartphone as a remote control and Bluetooth HC-05 as a connecting medium between smartphone and robot. In addition to using the Arduino robot, it uses the L298N motor driver as an output regulator for DC motors. Based on the results of testing on this design, in experiment 1, the speed of robot experiment I is 0.58 m/s for a distance of 3 meters completed in 5.1 seconds, in experiment II, the speed is 0.56 m/s with the same distance and completed in 5.3 seconds, and in experiment III, the speed is speed of 5.4 m/s in 5.5 seconds. The difference in speed and duration between experiments is influenced by factors such as reduced battery voltage, and the process of sending data and pairing can be done as far as 13 meters.

Real-time monitoring system for weather and air pollutant measurement with HTML-based UI application

“…The hardware installed in the field consists of a PCB assembled for the gas sensors, weather station shield, DC/DC step down converter, and the Nodemcu ESP32 development kit C as microcontroller board [29]- [34]. several researchers have also developed various automation systems using various microcontroller boards [35]- [42].…”