What is the range of the HC-SR04?
between 2cm – 400 cm
The HC-SR04 sensor works best between 2cm – 400 cm (1″ – 13ft) within a 30 degree cone, and is accurate to the nearest 0.3cm.
How accurate is the HC-SR04?
At its core, the HC-SR04 Ultrasonic distance sensor consists of two ultrasonic transducers….HC-SR04 Hardware Overview.
|Operating Voltage||DC 5V|
|Measuring Angle||15 degree|
|Trigger Input Signal||10µS TTL pulse|
What is the maximum range can the HC-SR04 sensor can detect?
Description. The HC-SR04 ultrasonic sensor uses sonar to determine the distance to an object. This sensor reads from 2cm to 400cm (0.8inch to 157inch) with an accuracy of 0.3cm (0.1inches), which is good for most hobbyist projects.
What is the main purpose of the HC-SR04 sensor?
HC-SR04 is an ultrasonic sensor mainly used to determine the distance of the target object. It measures accurate distance using a non-contact technology – A technology that involves no physical contact between sensor and object.
Does ultrasonic sensor detect human?
Human Presence Detection with Ultrasonic Sensors. MaxBotix ultrasonic sensors solve the common problem of sensing human presence. Our ultrasonic sensors offer the ability to detect people over a wide range of distances with a high read rate and excellent reading to reading stability.
What is trig and echo in Arduino?
Trig (Trigger) pin is used to trigger the ultrasonic sound pulses. Echo pin produces a pulse when the reflected signal is received. The length of the pulse is proportional to the time it took for the transmitted signal to be detected. GND should be connected to the ground of Arduino.
What is NewPing library?
A library that makes working with ultrasonic sensors easy. The NewPing library totally fixes these problems, adds many new features, and breathes new life into these very affordable distance sensors.