RoboScout

Abstract

The RoboScout project presents the design and implementation of a smart exploration vehicle capable of remote navigation, real-time monitoring, and environmental awareness. The system was developed to address the need for safe and efficient exploration in environments where direct human presence may be difficult or unsafe. The vehicle is built on a tank chassis for enhanced stability and is powered by an Arduino Mega that controls DC motors, servo motors, and lighting systems. Wireless communication between the handheld controller and the vehicle is achieved using ESP32 modules with ESP-NOW protocol, enabling low-latency transmission of joystick commands and sensor feedback. A Raspberry Pi 4, equipped with Raspberry Pi Camera v2 and a microphone, provides live video and audio streaming to the operator’s mobile device. Multiple sensors were integrated to enhance safety and monitoring, including an ultrasonic sensor for obstacle detection, a DHT11 for temperature and humidity measurement, an MQ sensor for gas detection, an MPU6050 gyroscope for tilt monitoring, and an INA219 sensor for battery level tracking. The system also features a timed safety mechanism: when an obstacle is detected within 20 cm, forward motion is blocked for 10 seconds while reverse movement remains allowed. To improve usability, an LCD with I2C interface and a buzzer on the handheld controller provide immediate feedback, while headlights and an LED strip automatically adjust to ambient light conditions for improved visibility. A custom 3D-printed enclosure houses the controller, which includes dual joysticks for navigation and camera control. Additionally, a mobile application allows alternative vehicle control and real-time monitoring of sensor data. The results demonstrate that the RoboScout is a reliable, cost-effective, and user-friendly platform that successfully integrates robotics, sensing, and multimedia streaming into a compact system suitable for exploration, monitoring, and educational applications.