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DESCRIPTION
The Ultrasonic Sensor HC-SR04+ uses sonar to determine distance to objects like bats or dolphins do. This module offers excellent range accuracy and stable readings in an easy-to-use package. Its operation is not affected by sunlight or black material (although acoustically soft materials like cloth can be difficult to detect). Ranging accuracy can reach up to 3mm.
Sensor Working Principle:
- IO trigger through supplying at least 10us sequence of high level signal
- The module automatically send eight 40kHz square wave and detect any response from the returning pulse signal
- If there is signal returning, ECHO pin will pulse high. By calculating the difference in timing from sending to receiving and dividing by the speed of sound we will be able to get the distance of the object
- Distance = duration / 2 / 29.1
TECHNICAL DETAILS
- Input Voltage: 3.0 - 5.5V
- Detection Distance: 2 - 400cm
- Effective Angle: 15°
- Precision: 3mm
- Input Trigger Signal: 10us TTL Pulse
- Echo Signal: TTL PWL Signal
SHIPPING LIST
- 1x Ultrasonic Sensor HC-SR04+ 3.3V Compatible
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We believe that curiosity is at the heart of growth and development. We believe in enquiry-based learning and the power of learning through hands-on play. We are a digital playground in Singapore committed to hands-on learning experiences and enabling possibilities.
Unlock your potential with our STEM coding and robotics courses. Design and build your own devices through our micro:bit, Arduino, Raspberry Pi and M5Stack courses. Shop for parts at our store and further refine your skills by integrating advanced sensors, modules, IoT and even AI.
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