Flow – Hamtech Electronics Technologies https://hamtechtechnologies.com Sun, 30 Nov 2025 10:01:31 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.2 https://hamtechtechnologies.com/wp-content/uploads/2025/11/h-100x100.webp Flow – Hamtech Electronics Technologies https://hamtechtechnologies.com 32 32 YF-S401 Flow Sensor https://hamtechtechnologies.com/product/yf-s401-flow-sensor/ https://hamtechtechnologies.com/product/yf-s401-flow-sensor/#respond Thu, 20 Nov 2025 19:51:46 +0000 https://hamtechtechnologies.com/index.php/product/yf-s201-flow-sensor/ YF-S401 Flow Sensor is a compact, reliable liquid flow meter that outputs pulse signals corresponding to the rate of water flow, ideal for Arduino, ESP32, and Raspberry Pi water monitoring projects.]]> The YF-S401 Flow Sensor uses a Hall-effect sensor to detect the rotation of a turbine inside the module. Each rotation generates a pulse, which can be counted by a microcontroller to measure water flow rate in liters per minute. It is widely used in IoT water monitoring, water dispensers, irrigation systems, and DIY smart home projects. The sensor operates at low voltages, is easy to interface, and provides real-time flow measurements.

Key Features

  • Hall-effect sensor-based flow detection

  • Measures water flow in liters per minute

  • Pulse output for microcontroller interfacing

  • Operating voltage: 5–18V DC

  • Flow range: 1–30 L/min

  • Compact and lightweight for easy integration

  • Compatible with Arduino, ESP32, and Raspberry Pi

Variants

  • YF-S401 Standard Flow Sensor

  • YF-S401 with 1/2″ or 3/4″ G1/2 threaded connectors

Specifications

Feature Details
Sensor Type Hall-effect
Operating Voltage 5–18V DC
Flow Range 1–30 L/min
Output Type Pulse
Max Pressure 1.75 MPa
Operating Temperature 0–80°C
Thread Size G1/2 (standard)
Dimensions 72 × 35 × 27 mm

Applications

  • Water flow monitoring and measurement

  • Smart water meters and IoT projects

  • Irrigation and water distribution systems

  • Water dispensers and filtration systems

  • DIY liquid flow experiments with microcontrollers

Compatible Boards / Circuits

  • Arduino Uno, Mega, Nano

  • ESP32 / ESP8266

  • Raspberry Pi (via GPIO)

  • Any microcontroller capable of counting pulses

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