Hello forum
may i have some help please?
I have a question about HC-SRO4 sensor.
The sensor works on 5V DC on digital ports and working current: 15mA. The output voltage on digital port on EZ-B V4 is 7,4V.
The question: It is necessary to use a DC-DC Step down Buck Converter?
By sakis33
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The one from ezrobot (Ultrasonic Distance Sensor) includes embedded electronics to handle the voltage lowering for you. I can’t speak on ones from other sources because they most likely do not include that circuitry.
Hi Dj and thank you for the response
it is not from ezrobot , it is from another source and it is not included voltage lowering circuit.
the values that i get from the sensor it is not "stable"!
You will need to step down the voltage if its not the ezrobot one.. I am using a Buck Converter for 2 additional after market sensors. I bought a hand full of cheap ones of ebay but you get what you pay for... some of them are junk.