HC-SR04 (5V) Ultrasonic Distance Sensor

HC SR04 HC-SR04 Ultrasonic Sensor also called HC-SR04 Ultrasonic Range Finder. Ultrasonic Sensor module HC-SR04 provides 2cm 400cm non-contact measurement function, the ranging accuracy can reach to 3mm. The modules include ultrasonic transmitters, receiver and control circuit.

The ultrasonic sensor uses sonar to determine the distance to an object like bats or dolphins do. It offers excellent non-contact range detection with high accuracy and stable readings in an easy-to-use package. From 2cm to 400 cm or 1 to 13 feet. Its operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect). It comes complete with the Ultrasonic Sensor transmitter and a receiver module. This is easily interfaceable for many microcontrollers likeArduino uno r3,Microchip PICandST Microcontrollers.

Click me forinstructableof this product.

Features of Arduino Ultrasonic Sensor:

1. Power Supply: +5V DC
2. Quiescent Current : <2mA
3. Working Current: 15mA
4. Effectual Angle: <15
5. Ranging Distance : 2cm 400 cm/1 13ft
6. Resolution : 0.3 cm
7. Measuring Angle: 30 degree
8. Trigger Input Pulse width: 10uS minimum
9. Dimension: 45mm x 20mm x 15mm

Sensor Differences:

Alright, lets get straight into the topic and see what are the difference between the two newer and older versions ofHC-SR04-Pultrasonic sensors. Well, to be frank, both of them actually provide an approximately similar outcome in terms of distance measuring same goes for the working principle which consists of 1 transmitter and 1 receiver.

To clarify this isNOT the sameastheHC-SR04since the name of the ultrasonic sensor is very similar and it operates at 5V only. The ones we will be looking at and comparing is the 2021 and 2022 version ofHC-SR04-Pultrasonic sensors, both operate at the voltage 3V 5V.