Basically I'm trying to expand on the idea of the backup sensors that you can find on cars today except at a longer range (around 30ft) so at 30 ft you would hear a beep and as the object moved closer the beeps would increase. I feel like you all should know what i'm talking about. So basically I am just trying to improve range on an already developed idea.
Fiddled around with it a little more I was getting a read of 269in and 0in and the serial monitor was changing between those two numbers. I have since fiddled with it some more and I am not getting a straight read of 270in waving my hand over the transducers does not change the distance. Any ideas?
any ideas about what I need to get these particular ultrasonic sensors to work? I already bought them so I might as well use them. I read somewhere that I could use an LM833 as an amplifier and a MAX232 to provide a larger voltage to the sensors in a circuit similar to this one: http://www.robot-electronics.co.uk/htm/srf04tech.htm however is there anything else that I would need on top of that to make this work?
Ok, i'll look into that. The reason I chose those sensors is because of the range approx. 18m where as the Devantech SRF04 only has a range of approx. 3m. I figured I would just get those sensors and build around them.
Can you be more specific? I am very new to programming and working with the arduino. It is my understanding that I need to feed 40khz into one, then amplify the other and listen for a reply(they came in a pack of 2). I am not quite sure how to make this happen though. Thanks.
I recently ordered a set of long range ultrasonic transducers from here: http://www.futurlec.com/Ultrasonic_Sensors.shtml I was wondering if anyone can offer any advice on how I can hook these up to start reading distances. Thanks in advance