What is a MicroMouse?

A MicroMouse is an autonomous solver robot designed to navigate through an unknown maze, map its pathways using intelligent algorithms (like Floodfill or Dijkstra), and reach the center in the fastest time possible. It is one of the most prestigious technical robotics competitions worldwide, testing precise motor control, sensor integration, and real-time path planning.

Key Features

PID Controlled Movement: High-precision maze navigation with fully tunable PID constants, cell dimensions, maze grid size, turn ticks, and operational speed.
Developer Friendly: Purpose-built for tuning—allows students and engineers to calibrate PID parameters according to their controller characteristics.
Autonomous Center Detection: Automatically senses when it reaches the maze center and halts movement with a visual Blue LED indication.
Single-Button Start Run: Features an integrated KEY button on the microcontroller to trigger the maze-solving run instantly.
Smart Orientation Start Strategy: No code modification needed for different starting corners! The bot defaults to the bottom-right corner facing North. To start from another corner, simply re-orient the bot before pressing start (e.g., place at bottom-left facing East).
High-Precision Sensing: Equipped with 3 Time-of-Flight (ToF) distance sensors capable of measuring up to 2 meters with an accuracy within ±3%.
Regulated Power Delivery: Onboard 5V buck converter ensures optimal voltage regulation and protects the MCU from voltage spikes.

Hardware Specifications

Microcontroller: STM32 Black-Pill (STM32F411CEU6) running at 100MHz clock frequency.
Sensors: 3x Time-of-Flight (ToF) Sensors (up to 2m range, ±3% tolerance).
Motor Driver: TB6612FNG Dual MOSFET Motor Driver.
Motors: 2x Encoded N20 Motors (200 RPM) + 2x Non-Encoded N20 Motors (200 RPM).
Power Management: Integrated 5V Buck Converter & 3-pin ON/OFF power switch circuit.

⚠️ Important Notice

BATTERY NOT INCLUDED: Due to shipping regulations, the lithium battery is sold separately. A pre-soldered battery connector is provided on the board.

What’s Included in the Box

1x Custom MicroMouse Mainboard PCB
1x STM32F411CEU6 Black-Pill Microcontroller
3x Time-of-Flight (ToF) Laser Distance Sensors
1x TB6612FNG Motor Driver Module
2x Encoded N20 Gear Motors (200 RPM)
2x Non-encoded N20 Gear Motors (200 RPM)
1x Onboard 5V Buck Converter Module
1x Power Harness with 3-Pin Toggle Switch & Battery Connector
Mounting Hardware & Chassis Standoffs

PCB Pinouts & Layout

Refer to the top-view pinout diagram in the product image gallery above for complete GPIO mapping, sensor headers, motor outputs, and programming port locations.

Micromouse

Micro Mouse Development Kit