About this item

🔵 RCWL-1605 Ultrasonic Module – Integrated Transmitter & Receiver with GPIO and I²C 🔵

💡 The RCWL-1605 is a compact ultrasonic module that integrates both transmitter and receiver on a single board.
It can measure distances, detect objects, and enable interactive systems via a digital GPIO output or an I²C serial interface.

Perfect for Arduino, Raspberry Pi, ESP32, and smart sensing projects.

⚙️ How It Works

• The module emits a 40 kHz ultrasonic pulse through its built-in transducer.
• The receiver captures the reflected echo from an object.
• The internal circuit processes the signal and provides:
  • a GPIO digital output (high/low depending on detection),
  • or I²C data for more precise distance measurement.

🛡️ Specifications

• Model: RCWL-1605
• Operating voltage: 3.3V – 5V DC
• Interfaces: GPIO (digital) + I²C
• Ultrasonic frequency: 40 kHz
• Detection range: approx. 2 cm – 200 cm
• Digital output: HIGH/LOW
• I²C mode: provides measured distance data
• Size: approx. 45 × 20 mm

🛠️ Applications

• 📏 Ultrasonic distance measurement
• 🚪 Presence/obstacle detection (robotics, smart home)
• 🖥️ Interactive interfaces and intelligent control
• 🤖 Autonomous robots and collision avoidance
• 🌊 Liquid or solid level sensing

✨ Key Features

• 🔊 Built-in transmitter and receiver
• ⚡ Dual output: GPIO + I²C
• 🔌 Flexible power supply (3.3V or 5V)
• 📏 Measures up to 2 meters
• 🛡️ Compact and easy to integrate