MODIFICATION OF ULTRASONIC DISTANCE MEASUREMENT

[samplus]

I have this design, its ultrasonic distance measurement, working perfectly, but I want to modify it by adding a buzzer (1) To beep once when it measures a distance equal to 1m and (2) To increase the frequency of beeping whenever the distance is less than 1m. I need help, please. Thank you.

 

[gophert]

Welcome to the forum.

since you have your 8-bit bus set up for your LCD display, you could use an 8-bit tone generator chip like the AY-3-8910 o AY-3-8913. It is very similar to the display in the way it functions. Send the frequency to the chip, the volume and the "noise" factor and it sends a tone to an output pin. It has three output pins so you can make a chord instead of just a tone. And the noise factor adds depth to the pure tones.
It's an old school part. Other digital tone generators exist now so you might want to go that route.

General Instrument AY-3-8910 - Wikipedia

en.m.wikipedia.org

if you want an AY-3-8913, let me know.

 

[Pommie]

Have you considered using an Arduino? See https://www.tutorialspoint.com/arduino/arduino_ultrasonic_sensor.htm for one of many examples.

Mike.

 

[gophert]

Have you considered using an Arduino? See https://www.tutorialspoint.com/arduino/arduino_ultrasonic_sensor.htm for one of many examples.

Mike.

he wasn't asking how to use an ultrasonic sensor. He is asking how to generate audible tones and correlate frequency of the audible buzz to his measured distance.

 

[samplus]

Exactly @ Gophert. I already have a system but wants to modify it for extra features as said earlier. I want it to beep at distance =1m, and beep more frequently at distances less than 1m.

 

[samplus]

How do I add it to the system I have?

 

[Pommie]

Do you have a working system? What language?

Mike.

 

[gophert]

Do you have a working system? What language?

do you

I have this design, its ultrasonic distance measurement, working perfectly,

what does the language have to do with generating audible tones?
Do you have an idea about audible tones, or not? Or do you just want to talk about non-tone related topics?

 

[Pommie]

do you


what does the language have to do with generating audible tones?
Do you have an idea about audible tones, or not? Or do you just want to talk about non-tone related topics?

Again, what is wrong with you?

Mike.

 

[Les Jones]

I suspect he means what programming language is being used on the 8051. I would imagine it should be possible to add the required features by modifying the software. Assuming the source code is available.

Les.

 

[Pommie]

It has a box in the top post with c/asm in it so it seemed reasonable to ask what language but gophert doesn't think so. Are you OK gophert?

Mike.

 

[Pommie]

do you


what does the language have to do with generating audible tones?
Do you have an idea about audible tones, or not? Or do you just want to talk about non-tone related topics?

The more i think about this the more I realize you don't understand.

 

[alec_t]

I have this design, its ultrasonic distance measurement, working perfectly

Do you have an understanding of the MCU code, or is it just cut-and-paste from some library? If the former, it shouldn't be too difficult to bolt on extra code.