Ultrasonic Distance Sensor - 3.3V (HC-SR04)
This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm.
Helpful Documentation
Product Overview
This is the HC-SR04-33 ultrasonic distance sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04-33 module includes an ultrasonic transmitter, a receiver and a control circuit.
There are only four pins that you need to worry about on the HC-SR04: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground). You will find this sensor very easy to set up and use for your next range-finding project!
This sensor has additional control circuitry that can prevent inconsistent "bouncy" data depending on the application.
NOTE: This version can be operated at both 3.3V and 5V. SEN-15569 only operates at 5V.
Note: This is the same ultrasonic sensor used with the XRP kits Beta & DIY
Features & Specs
- Operating Voltage: 3.3V~5V DC
- Current: 15mA
- Frequency: 40Hz
- Max Range: 4m
- Min Range: 2cm
- Measuring Angle: 15°
- Trigger Input Signal: 10uS TTL pulse
- Echo Output Signal: Input TTL lever signal and the range in proportion
- Dimension: 45 x 20 x 15mm
Documentation
Customer Reviews

Stock and Customer Discounts
Available Discounts
- $5.65 | 25+ units
- $5.36 | 100+ units