This is an arduino basic kit for building an omni-directional robot or an obstacle avoidance control system. It includes a DFRduino mega 2560 controller, a mega IO expansion shield, four infrared distance sensors, and two motor drivers. Specification * DFRduino Mega 2560 * Microcontroller: ATmega2560 * Operating Voltage: 5V * Input Voltage (recommended): 7-12V * Distance measuring range: 10 cm to 80 cm (4" to 32")in 4 Direction * Drive Type: Dual high-power H-bridge driver * Drive part of the operating current Io: 2A(max) Documents * DFRduino Mega wiki * Mega IO Expansion Shield wiki * 2A Dual Motor Controller wiki Shipping List * DFRduino Mega 2560 V2.0 x1 * Mega IO Expansion Shield V2.1 For Arduino Mega x1 * Sharp GP2Y0A21 Distance Sensor x4 * 2A Dual Motor Controller x2 https://elecena.pl/product/27743181/dfrobot-gravity-dfrduino-mega-kit-for-4-motor-robot 2025-01-23 https://elecena.pl/product/27743181/dfrobot-gravity-dfrduino-mega-kit-for-4-motor-robot 2026-02-21