DFRobot
Gravity: Water Flow Sensor (1/2) For Arduino
INTRODUCTION The Gravity Water Flow sensor measures the rate of a liquid flowing through it. The YF-S201 water flow sensor consists of a plasti...
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INTRODUCTION
The Gravity Water Flow sensor measures the rate of a liquid flowing through it.
The YF-S201 water flow sensor consists of a plastic valve body, flow rotor and hall effect sensor. It is usually used at the inlet end to detect the amount of flow.
When liquid flows through the sensor, a magnetic rotor will rotate and the rate of rotation will vary with the rate of flow. The hall effect sensor will then output a pulse width signal. Connect it to a microcontroller and you can monitor multiple devices such as your coffee maker, sprinkler or anything else, and control the water flow rate to suit your needs!
The Gravity interface make it be compatible with Arduino IO Expansion Shield.
Note: *A 20 mm rifled pipe is recommended *Avoid unit contact with corrosive chemicals *The unit must be installed vertically, tilted no more than 5 degrees *Liquid temperature should be less than 120 C to avoid damage to unit
SPECIFICATION
- Inner Diameter: 11 mm
- Outside diameter: 20 mm
- Proof Water Pressure: <1.75 MPa
- Water Flow Range: 1-30 L/min
- Voltage Range: 3.5~12 V
- Operating Current: 15 mA (DC 5V)
- Insulation Resistance: >100 MΩ
- Accuracy: ±5% (2~30L/min)
- The Output Pulse High Level: >4.7 VDC (DC input voltage 5 V)
- The Output Pulse Low Level: <0.5 VDC (DC input voltage 5 V)
- Output Pulse Duty Ratio: 50% ± 10%
- Water-flow Formula: 1L = 450 square waves
- Working Humidity Range: 25% ~ 95% RH (no frost)
- Dimension: 62*36*35 mm/2.44*1.37*1.37 inches
- Weight: 52g
DOCUMENTS
SHIPPING LIST
- Gravity - Water Flow Sensor - 1/2" x1
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
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Supplier page — dfrobot.com
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