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Ultrasonic Distance Sensor - 5V (HC-SR04)
This is the HC-SR04 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 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.
- Operating Voltage: 5V DC
- Operating Current: 15mA
- Measure Angle: 15°
- Ranging Distance: 2cm - 4m
Ultrasonic Distance Sensor - 5V (HC-SR04) Product Help and Resources
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Customer Reviews
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To use multiple HC-SR04 in a setup transmitting from one and recieving on the others, I will need to desolder the transmitters and put some circuit in between allowing To switch the transmitter on or off. Can anyone assist in the design of such circuit?
My ultimate goal is to make acoustic pyrometer hack similar to the industrial systems like this one: https://www.valmet.com/automation/boiler-diagnostics/acoustic-pyrometer/?page=1