{"product_id":"pololu-2521-zumo-shield-for-arduino-v1-3","title":"Pololu 2521 Zumo Shield for Arduino v1.3","description":"\u003cmeta name=\"description\" content=\"Buy Pololu 2521 Zumo Shield for Arduino v1.3 online in India at best price from The Engineer Store, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\n\u003ch1\u003ePololu 2521 Zumo Shield for Arduino v1.3\u003c\/h1\u003e\n\n\u003cp\u003eThe Pololu 2521 Zumo Shield for Arduino v1.3 is a comprehensive robotics expansion board designed to transform Arduino microcontrollers into autonomous mobile robots with integrated motor control, sensors, and power management. Roboticists, embedded systems engineers, and educational institutions use this shield to rapidly prototype line-following robots, obstacle-avoidance platforms, and competitive sumo-style robots without extensive custom PCB design. This shield solves the critical challenge of integrating dual motor drivers, sensor interfaces, and power distribution into a single stackable form factor while maintaining Arduino pin compatibility.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Zumo Shield v1.3 operates as a complete motor control and sensor integration platform for Arduino boards. It features dual 75:1 micro metal gearmotors with integrated quadrature encoders, allowing closed-loop speed control and odometry calculations. The shield incorporates a DRV8835 dual motor driver IC capable of delivering up to 1.5A per channel at 5V, enabling precise PWM-based speed and direction control. The onboard power management system includes a 5V regulator accepting 6-12V input from AA battery holders, with integrated protection against reverse polarity and overcurrent conditions. The sensor suite comprises a 6-axis IMU (3-axis accelerometer and 3-axis gyroscope), line sensors with analog outputs for floor detection, and front-mounted IR proximity sensors for obstacle avoidance.\u003c\/p\u003e\n\n\u003cp\u003eThe architecture leverages I2C communication for IMU data acquisition and standard Arduino digital\/analog pins for motor PWM control and sensor readout. The v1.3 revision improves upon earlier versions with optimized PCB layout for reduced electromagnetic interference, enhanced thermal management around the motor driver IC, and improved mechanical stability of the motor mounting brackets. The shield maintains a compact 80mm x 80mm footprint, fitting within standard Arduino UNO and compatible boards, while the dual 75:1 gearmotors provide approximately 0.5m\/s maximum velocity suitable for indoor robotics competitions and educational demonstrations.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eArduino Motor Control Shield with Integrated Robotics Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePololu Robotics and Electronics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7 days on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003e1-5 days from Bengaluru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003e7-8 days across India\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003e24\/7 via Email and WhatsApp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Driver IC\u003c\/td\u003e\n\u003ctd\u003eDRV8835 Dual Motor Driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Current Output\u003c\/td\u003e\n\u003ctd\u003e1.5A per channel at 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDual Motors\u003c\/td\u003e\n\u003ctd\u003e75:1 Micro Metal Gearmotors with Quadrature Encoders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIMU Sensor\u003c\/td\u003e\n\u003ctd\u003e6-axis (3-axis Accelerometer + 3-axis Gyroscope)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e6-12V DC (4xAA battery holders included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePCB Dimensions\u003c\/td\u003e\n\u003ctd\u003e80mm x 80mm x 30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eArduino UNO, Leonardo, and compatible boards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDual DRV8835 Motor Driver with 1.5A per channel output enabling independent left and right motor control for differential drive locomotion\u003c\/li\u003e\n\u003cli\u003eIntegrated 75:1 Micro Metal Gearmotors with quadrature encoders for precise odometry and closed-loop speed feedback control\u003c\/li\u003e\n\u003cli\u003e6-axis IMU (LSM303D accelerometer and gyroscope) for orientation sensing and tilt detection in autonomous navigation algorithms\u003c\/li\u003e\n\u003cli\u003eAnalog line sensors with adjustable sensitivity for floor-following applications and competition-grade line tracking\u003c\/li\u003e\n\u003cli\u003eFront-mounted IR proximity sensors for obstacle detection enabling autonomous collision avoidance behavior\u003c\/li\u003e\n\u003cli\u003eIntegrated 5V regulator with reverse polarity protection and overcurrent limiting for safe battery operation\u003c\/li\u003e\n\u003cli\u003eI2C and SPI compatible sensor interfaces for seamless Arduino library integration\u003c\/li\u003e\n\u003cli\u003eStackable shield design maintaining full Arduino pin accessibility for additional sensor expansion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAutonomous Line-Following Robots: Deploy the analog line sensors with PID control algorithms to create robots that track black lines on white surfaces, commonly used in educational robotics competitions and STEM curricula\u003c\/li\u003e\n\u003cli\u003eObstacle Avoidance Platforms: Utilize the IR proximity sensors and IMU data to implement reactive navigation systems that autonomously detect and avoid physical obstacles in indoor environments\u003c\/li\u003e\n\u003cli\u003eSumo-Style Robot Competitions: Leverage the dual motor control and sensor fusion capabilities to build aggressive pushing robots for competitive robotics events requiring rapid direction changes and force feedback\u003c\/li\u003e\n\u003cli\u003eMobile Robot Research Platforms: Employ the encoder feedback and IMU data for advanced robotics research including SLAM (Simultaneous Localization and Mapping), path planning, and machine learning-based autonomous behavior\u003c\/li\u003e\n\u003cli\u003eEducational STEM Projects: Introduce students to embedded systems, motor control, and sensor integration through hands-on robotics projects with Arduino compatibility and extensive community documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eBegin by stacking the Zumo Shield onto your Arduino UNO or compatible board, ensuring all header pins are properly aligned and fully seated. Install four AA batteries into the onboard battery holders and verify the power switch is in the OFF position. Download the Zumo Shield Arduino library from Pololu's GitHub repository and install it through the Arduino IDE Library Manager. Upload the example sketches to familiarize yourself with motor control functions like setMotorSpeeds() for PWM-based velocity control and readLineSensors() for floor detection. Configure the motor direction constants based on your specific motor wiring orientation, as gearmotors may require direction reversal for coordinated left-right movement.\u003c\/p\u003e\n\n\u003cp\u003eFor IMU-based applications, initialize the LSM303D sensor through the Wire library using I2C address 0x1D and establish a 100kHz communication speed. Implement PID control loops for line-following by reading analog values from the line sensors (typically pins A0-A2) and adjusting motor speeds to minimize cross-track error. For obstacle avoidance, continuously sample the IR proximity sensor outputs and implement threshold-based decision logic to trigger evasive maneuvers. The quadrature encoders connect to interrupt-capable pins (typically pins 2 and 3 on Arduino UNO) allowing real-time odometry calculations. Test all motor directions, sensor calibrations, and control algorithms in a controlled environment before deploying your robot in competition or field conditions.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum speed and torque of the Zumo Shield motors?\u003c\/summary\u003e\n\u003cp\u003eThe 75:1 micro metal gearmotors deliver approximately 0.5m\/s maximum linear velocity on the Zumo platform and provide sufficient torque for pushing other robots in sumo competitions. Actual speed varies based on battery voltage (6-12V) and load conditions. The gear ratio provides high torque suitable for climbing slight inclines and overcoming friction in competitive environments.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use the Zumo Shield with Arduino boards other than UNO?\u003c\/summary\u003e\n\u003cp\u003eYes, the Zumo Shield is compatible with Arduino Leonardo, Arduino Mega, and any Arduino-compatible board with standard 0.1-inch header spacing. However, verify pin assignments in the library code as some boards have different interrupt pin configurations. The shield occupies digital pins 2, 3, 4, 5, 6, 7 and analog pins A0-A2, so ensure these pins are available on your target board.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I calibrate the line sensors for different floor colors?\u003c\/summary\u003e\n\u003cp\u003eThe Zumo Shield includes a calibration routine accessible through the example sketches. Run the calibration function while moving the robot over the lightest and darkest surfaces it will encounter. This establishes the sensor threshold values stored in EEPROM. The readCalibrated() function then returns normalized values (0-1000) making your line-following algorithm independent of ambient lighting variations.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat battery type and capacity should I use?\u003c\/summary\u003e\n\u003cp\u003eUse four AA alkaline or rechargeable NiMH batteries providing 6V nominal (or up to 6.4V with fresh alkalines). Rechargeable NiMH batteries (2500mAh capacity) provide 4-5 hours of continuous operation. The onboard 5V regulator accepts input voltages up to 12V, so you can also use external power supplies if preferred. Avoid mixing battery types or using depleted batteries as voltage sag affects motor performance and sensor accuracy.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eOrders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return and warranty policy?\u003c\/summary\u003e\n\u003cp\u003eWe offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eWhy Buy from The Engineer Store\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Products: Sourced directly from authorized distributors with authentication\u003c\/li\u003e\n\u003cli\u003eExpert Team: Our technical team validates every product before listing\u003c\/li\u003e\n\u003cli\u003eFast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse\u003c\/li\u003e\n\u003cli\u003ePan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata\u003c\/li\u003e\n\u003cli\u003ePayment Options: COD, UPI, credit\/debit cards, net banking, EMI available\u003c\/li\u003e\n\u003cli\u003eTechnical Support: 24\/7 expert guidance via email and WhatsApp\u003c\/li\u003e\n\u003cli\u003eReturns: 7-day return policy on manufacturing defects only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuy Pololu 2521 Zumo Shield for Arduino v1.3 Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003ePololu 2521 Zumo Shield for Arduino v1.3\u003c\/strong\u003e online at \u003ca href=\"https:\/\/theengineerstore.in\"\u003eThe Engineer Store\u003c\/a\u003e, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003ePololu 2521 Zumo Shield for Arduino v1.3\u003c\/strong\u003e with fast shipping and expert support.\u003c\/p\u003e\n\u003cp\u003eOur team in Bengaluru is available 24\/7 to support your journey from product selection to project completion.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":43853758857379,"sku":"TES-EV02530","price":3425.92,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/4479\/7091\/products\/2521-228x228.jpg?v=1704191640","url":"https:\/\/www.theengineerstore.in\/zh-hant\/products\/pololu-2521-zumo-shield-for-arduino-v1-3","provider":"The Engineer Store","version":"1.0","type":"link"}