SR04T Waterproof Distance Measuring Ultrasonic Sensor Module

SR04T is a waterproof ultrasonic sensor module designed for accurate distance measurement in various environments, including outdoor and underwater applications. This sensor is ideal for use in harsh conditions where standard ultrasonic sensors may fail, such as in water level detection, outdoor obstacle avoidance, and other industrial applications. It provides reliable and accurate distance measurements, making it a versatile tool for many projects.

Technical Specifications:

• Model: SR04T
• Operating Voltage: 5V DC
• Quiescent Current: < 8mA
• Operating Current: 30mA
• Operating Frequency: 40kHz
• Detection Range: 25cm to 450cm (0.25m to 4.5m)
• Measurement Angle: ≤ 75 degrees
• Accuracy: ±1cm
• Waterproof Level: IP67
• Communication Interface: TTL level
• Dimensions: Compact design for easy integration

Pin Configuration:

1. VCC: Connect to the power supply (5V).
2. Trig: Trigger input pin (send a 10µs high pulse to start measurement).
3. Echo: Echo output pin (outputs the time it takes for the ultrasonic pulse to return).
4. GND: Connect to ground.

Features:

• Waterproof Design: Suitable for use in wet and harsh environments.
• Wide Detection Range: Measures distances from 25cm to 450cm.
• High Accuracy: Provides precise distance measurements with an accuracy of ±1cm.
• Easy to Interface: Standard 4-pin header for straightforward connections to microcontrollers.
• Low Power Consumption: Suitable for battery-powered systems.
• Compact Design: Small form factor for easy integration into various projects.

Applications:

• Water level detection
• Outdoor obstacle avoidance
• Industrial automation
• Underwater distance measurement
• Parking assistance systems
• Robotics
• DIY electronics projects

Usage Tips:

1. Connecting the Module:
   • Connect the VCC pin to the 5V power supply.
   • Connect the GND pin to the ground of your system.
   • Connect the Trig pin to a digital output pin on your microcontroller.
   • Connect the Echo pin to a digital input pin on your microcontroller.
2. Triggering the Sensor:
   • To initiate a measurement, send a 10µs high pulse to the Trig pin. This will trigger the sensor to emit an ultrasonic burst.
3. Reading the Echo:
   • Measure the duration of the high pulse on the Echo pin. This duration corresponds to the time taken for the ultrasonic pulse to travel to the object and back.
4. Calculating Distance:
   • Use the formula: Distance (cm) = Duration (µs) / 58
   • Alternatively, use the formula: Distance (inches) = Duration (µs) / 148

The JSN-SR04T Waterproof Ultrasonic Sensor Module is a reliable and accurate solution for distance measurement in challenging environments. Its waterproof design and robust performance make it an ideal choice for a wide range of applications, from water level detection to outdoor obstacle avoidance.