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Arat Micro

A high-performance micromouse robot for maze solving, built around an STM32F411 core with laser ToF sensing, encoder-driven motors, and inertial navigation.

About

Arat Micro is a high-performance micromouse robot designed for competitive maze solving. The architecture centers on the STM32F411CEU6 Blackpill for real-time navigation computations and sensor fusion, replacing simpler microcontroller setups with a platform built for speed, precision, and reliable power delivery.

Time-of-Flight laser sensors provide left, right, and front distance readings, while a 6-axis MPU6050 gyroscope keeps orientation stable through tight turns. Dual JGA25-370 encoders close the loop on propulsion, giving the firmware precise speed and position feedback inside narrow maze cells.

Features

  • STM32F411 Processing Core: Fast enough for real-time maze mapping, turn correction, and motor control without sacrificing responsiveness.
  • Laser ToF Distance Sensing: Three VL53L0X modules measure wall proximity on left, right, and front axes for accurate localization.
  • Inertial Navigation: MPU6050 gyroscope and accelerometer data stabilizes turns and reduces drift during high-speed segments.
  • Encoder-Driven Propulsion: Dual JGA25-370 motors with 64 CPR feedback enable precise speed control and repeatable movement.
  • Robust Power Architecture: 2S LiPo input with buck and LDO regulation, motor protection diodes, and a compact CNC aluminum chassis.

The Story

Micromouse is one of the hardest intersections of embedded systems, mechanical design, and algorithmic thinking. Arat Micro is the next step after earlier Arduino-based prototypes: a purpose-built platform with better sensing, stronger motor control, and a chassis designed to stay stable at competition speeds. Every component in the BOM was chosen to keep the robot fast, predictable, and ready for firmware that can push the limits of maze exploration.