The Gravity: Digital Peristaltic Pump is a compact and efficient liquid actuator developed by DFRobot. Designed for accurate microfluidic control, this peristaltic pump integrates a PPM motor driver and supports standard servo control signals, making it a fully compatible peristaltic pump for platforms like Arduino, Raspberry Pi, micro:bit, and others. This peristaltic pump features a durable BPT tubing and a three-roller head that minimizes pulsation while maintaining steady fluid flow. Its anti-acid build, low-noise operation, and plug-and-play Gravity interface make this microfluidic control pump an ideal solution for water quality monitoring, drip irrigation, titration systems, and DIY automation. Key Features Peristaltic Pump: Delivers fluids with low noise, low cost, and simple structure as a reliable peristaltic pump Made with non-toxic materials, easy to clean and maintain peristaltic pump components Three-roller design for moderate, steady fluid pulsation in microfluidic control Supports quantitative liquid transfer up to ≥45ml/min with this peristaltic pump Motor Driver: Integrated Gravity PH2.0-3P interface for easy peristaltic pump setup Uses servo PPM signal (50Hz) to control speed and direction of the peristaltic pump Compatible with Arduino, Raspberry Pi, micro:bit and similar peristaltic pump controllers Specifications Driver Board: Input Voltage: 5V–6V Max Continuous Current: 1.8A Peak Current: 2.5A PPM Signal Resolution: 1μs Speed Control via Pulse Width Range: 500–2500μs Size: 27.4 × 28.7 mm (1.08" × 1.13") Peristaltic Pump: Motor Type: DC motor Rated Voltage: 6V | Power: 5W Flow Rate: ≥45ml/min Tube Material: BPT (2.5mm ID, 4.5mm OD) Operating Temp: 0–40℃ | RH < 80% Pump Head: Engineering Plastic, long life Applications Water quality monitoring systems Hydroponics and drip irrigation Chemical titration (pH, colorimetric, potentiometric) Aquarium & shrimp tank automation DIY food, beverage & coffee machine projects Medical and lab-grade fluid delivery What’s in the Box 1x Gravity Digital Peristaltic Pump with Motor Driver 1x Digital Sensor Cable 1x Silicone Tube (1m) 1x 10mL Plastic Measuring Cylinder reference Product wiki Code Resources
