Gravity Digital Peristaltic Pump / Hose Pump

The Peristaltic Pump from DFRobot has a PPM motor driver integrated into the tubing pump. The dosing pump is easily connected to a microcontroller via the DFRobot Gravity Interface. The control signal is compatible with standard servo motors, so you can use the pump with Arduino, Raspberry Pi, micro: bit and other types of microcontrollers to control their direction and flow rate. Tubing pumps are a type of positive displacement pump used to transfer small volumes of liquid. The liquid is contained in a flexible tube that is installed in a centrifugal pump casing. As the rotor rotates continuously, the fluid in the tube is compressed and conveyed to the other side. This way, the liquid flow can be easily and precisely controlled. As a type of dosing pump, the tubing pump can be conveniently used for precise transfer of liquids. There is a variety of application scenarios, such as scientific experiments, hydroponics, drip irrigation, tropical fish farming, etc.

Info: Since the motor's power consumption (about 5W) is somewhat high, it's better to connect an external power supply to the microcontroller as the USB port can only deliver 2.5W.

Features:

• Low-noise pump
• Integrated driver electronics on the pump motor
• Simple control like a 360° servo via PWM signal
• Compatible with Arduino, Raspberry Pi, micro: bit, and other microcontrollers

Documentation:

• DFRobot Wiki
• Github Sample Code for Arduino
• Pump Dimension
• Driver Module Dimension

Technical Details: 

Motor Driver:

• Input Voltage: 5V-6V
• Maximum Continuous Operating Current: 1.8A
• Peak Current: 2.5A
• Quiescent Current: <1mA (no PPM signal input)
• PPM Signal Resolution: 1us
• Positive Pulse Width of PPM Signal: 500us-2500us
• Forward Pulse Width Range: 500us-1400us (500us: maximum driving speed)
• Stop Pulse Width Range: 1400us-1600us
• Reverse Pulse Width Range: 1600us-2500us (2500us: maximum reverse speed)
• PPM Frequency: 50Hz Servo Control Signal
• Connector: Gravity PH2.0-3P
• Size: 27.4 x 28.7mm

Peristaltic Pump:

• Motor: DC motor
• Rated Voltage: 6V
• Rated Power: 5W
• Tube Material: BPT
• Tube Length: 1m
• Tube Specifications: Inner Diameter 2.5mm, Outer Diameter 4.5mm
• Pulsation: Three rollers, small pulsation
• Flow: ≥45ml/min (almost 1ml/s)
• Operating Conditions: Ambient Temperature 0 to 40°C, Relative Humidity <80%
• Weight: 173g

Package Contents:

• 1x Gravity Digital Peristaltic Pump / Tubing Pump
• 1x Gravity 3pin Digital Sensor Cable PH2.0 to XH2.54
• 1x Silicone Tube 1m
• 1x Plastic Measuring Cylinder 10ml