Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

HC-SR04 in analog circuit

Status
Not open for further replies.
T

Tanvir_jewel

Newbie level 3
Joined
Dec 11, 2017
Messages
3
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
25
I want to use HC-SR04 ultrasonic sensor with a comparator. My goal is so simple. when a object comes in a certain range of the sensor the voltage of the comparator's Non-inverting pin will be higher than the Inverting pic and in output a LED will glowup.

My question is can i deal with echo pin and trigger pin of the sensor
 

The datasheet for the sensor shows how to trigger it and what its echo is. Its output is a pulse, not continuous.
But the translation from Chinese is a nightmare.
It says, " The Echo is a distance object that is pulse width and the range in proportion" which might be that the duration of the echo pulse is determined by the distance?

Your comparator will not do what you want.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top