Published 02/19/2025 at 692 × 428 in RESEARCH ON THE DESIGN FOR PROTECTING THE ARDUINO-MEGA MICROCONTROLLER USED AT AQUATIC EXPLORATION Fig. 4. Rounded corners and reinforcement ribs on the lower part (left) and the upper part (right). Fig. 4. Rounded corners and reinforcement ribs on the lower part (left) and the upper part (right).