Ultrasonic Ranger

Is the firmware for SRF04 - Devantech ultrasonic ranger available ? I have seen the schematic on the Devantech site, but unable to locate the firmware to make it work ! Can the firmware from the PIC on the SRF04 - Devantech ultrasonic ranger be read out ? Or is it code protected ? Has someone tried making a clone of (...)

hello can some one please tell me how i can measure beyond 255cm i2c mode with the SRF02 ultrasonic ranger? I can read the LOW byte but reading the high byte seems confusing....or can i only read upto 255cm? it does not say anywhere on the data sheet i have observed that when lowbyte goes beyond 255, then the highbyte goes to '1' othe

I was looking for how to interface the ultrasonic rangefinder with AVR and from a website i found the following steps ultrasonic Range Finder Interface. These modules are designed to be used for microcontroller based applications hence optimized for it. The interface is a single pin called SIG (signal). The MCU is connected to the (...)

hey are there(this forum) any human????? No just aliens !!! Check this out (PIC):

thanx for help but do you know a good website related to my project , i mean using pic to design ultrasonic ranger search web before asking

Check this nice sites

we r implementing an ultrasonic ranger as a project. we hv designed pulse generator. but v r unable to get amplification using following circuit.please help uses inverters. but v r not at all getting amplification.instead v r getting attenuated output square wave. plz help [

Hai Xjackal Here is the schematic and codes for the ultrasonic range finder with PIC16F877. Hope thiis will HELP you. Goodluck

Hi guys, I have a question regarding component of SRF04 ultrasonic module. The company daventech manufactured this kind of ultrasonic range finder. My question is regarding the tranducer that it used. I want to ask is it all the ultrasonic range finder manufacturer like Daventech and Lagu use the same transducer component? I know their (...)

I would like to design a ultrasonic range detector with pic16F877A.Have anyone has the source code of that? The link below is the project i would like to do,but it using ATMEGA32L that is out of my understanding. can anyone help me to conve

I'm trying to build a cheap ultrasonic sensor from this schematic Will this inductor this transmitter (w

Hi all, I'm new to this. I have a Spartan 3AN FPGA board and I'm wanting to make an extension board that does measurements of ultrasonic frequencies at 40kHz. The range that would be desired is 5 metres. I haven't used the ADC/DAC yet so I would like to use these for connecting the TX/RX transducers. I am wondering how to make a circuit th

Hi, Can somebody explain to me the sample code here -> link. Particularly in this line: for(i = 0 ; i < BUFSIZE ; i++) // for all samples in buffer { cm += buf ; // add to sum } cm /= BUFSIZE ; // average samples [/CO

Hey, I'm looking to get help with using my parallax ultrasonic sensor and my pic 16f887 to measure the distance to an object. I've checked around and found some useful information but none of the programs i've found were in C language. Anyone think they can point me in the right direction? thanks

I Want to Make a Distance Measurement & Indication System Using ultrasonic Sensor (TS601-01). It Should Consist of A LCD Screen to Display Distance & LED With 1 Green & 1 Red. Green LED Should Always Be Lighten Up When the Car (toy) Containing The Sensor is in Safe Distance (> 5 CM), But When The Car with the Sensor reaches in Critical Distance (<=

You need a car detector and a simple up / down counter. The car detector can be made of two sensor. I will describe them below. The sequence of pulses from 2 sesors can tell whether a car is entering or leaving (maybe you have 2 gates for entry and exit in which case it would be even easier) the parking lot. A simple microcontroller can intrpret th

I assume this is just a model that you are making?. I cannot think that hall effect devices will be much use in this application apart from as a switch. Possibly ultrasonics may be your best option. An alternative would be a rotary position encoder wrapped round with a string and a weight on the other end. The normal way to do this of course would

Please refer this link This may help you

Now I'm trying to make my robot and this is my first time... I have Servo and I'm trying to control the servo with Ping)))... so the robot can stop... But I met alot of trouble with Ping)))... Can anyone give an Advice or help me, How to use Ping))) with AT89S52... if necessary I need the "ASM file" cause I'm using Assembly language...

But is there no way of rather detecting the intensity of the reflected light and using that information to determine distance. You can use the reflected light intensity only if you always approach the object at the same angle. IMHO, an ultrasonic ranger is easier to build from scratch than a triangulating IR ranger

Hi... I am working on the "ultrasonic range finder".. in this I have to calculate the distance of the obstacle using ultrasonic sensor. In this case, I am stuck with the problem, If there are more than one obstacle in path at different distance, how to detect them with one sensor only & how to calculate the distance of each & every obstac

Hi..... I have interfaced the ultrasonic Sensor with the microcontroller as P1.1 of controller to the base of transistor -> transistor collector drives the relay -> relay drives the sensor. The timer0 starts just after I start the ultrasonic transmitter. When the obstacle comes in path of transmitted pulse, pulses are reflected b

Hi miskol, I really don't think what you term as "noise" is really that - infact, its due to considerably less loading of the transducer. I assume you had the sensor setup in a reflective setup with an obstacle very close to the transducer - maybe 1 - 2 cms away (varies on temperature). Please confirm. Using switching, you were getting

A good suggestion at the wrong place. AD620 has a signal bandwidth of about 10 kHz at G=1000, not particularly suited for ultrasonic, I think. You actually need an amplifier with a higher gain bandwith product to realize G=1000 for e.g. 40 kHz. Using a two stage amplifier is the most simple solution if you depend on easily available standard

The sensors look like far east products that are on the market since 30 or 40 years. They are often selled by DIY electronics catalog distributors, you should be able to find a datasheet somewhere on the internet. Major manufacturers (e.g Murata) have similar products with a probably more exact specification. The transducers use rather thin piezo d

We Just bought this HC-Sr04 ultrasonic ranging module, and we would like to use it as an obstacle sensor, but we have a hard time on the program part of it. we thought it would be as easy as sending LOGIC 1 to the trigger pin ang receiving LOGIC 1 to the echo pin but it's not. do anyone have an experience on this sensor using it with PIC?

Does any have C code for PIC 16F877a with the SRF05 module that has a pulse output proportional in duration to the range distance. I suspect this uses the capture mode. Here is a fairly good tutorial: SRF05 - Ultra-Sonic ranger FAQ: [URL

85999 Can anyone please look into this circuit and tell me its working... i am weak in circuit design and i am trying to make a ultrasonic distance measurement device.

Does it need to distinguish between objects? If not You can use the ultrasonic or infra-red sensors.

Unlikely that you'll get that much range out of a simple IR set. Ultrasound is probably the better way to go for that distance. Some options here. I worked on a robot for a class that used #2, the Seeed ranger. ultrasonic sensors for robots