The range-detector tag has no wiki summary.
1
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1answer
81 views
Waterproof sonar?
I'm building sensors for an underwater robot and was wondering if it's possible to waterproof ultrasonic range finders like this one to work underwater. I have made waterproof enclosures before. ...
3
votes
2answers
106 views
Point-to-point range measurement using an IR receiver
I am interested in using an IR receiver (as opposed to a standalone PIN photodiode or phototransistor) to measure distance/range. I thought I had found an appropriate match in Vishay's TSSP4P38 ...
1
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2answers
133 views
Accurately detecting metallic objects
I need to detect the presence of large metallic objects. The detector will be on the ground. The detectable object will be around 60-70cm away. The detector will ...
8
votes
2answers
255 views
Collimating a sonar beam
Wondering if anyone is aware of a way to cause an ultrasonic proximity sensor to be modded, such that, it's forward line-of-sight range remains unaffected, but it's angular spread is reduced, somewhat ...
1
vote
0answers
77 views
Ultrasonic range finder with single transducer
I would like to make an ultrasonic range finder with a single transducer. The reason for only one transducer is because I'm limited in the amount of space I have for what I'm sensing. I've purchased ...
4
votes
2answers
132 views
Ultrasonic sensor doesnt work inside case
I have a very strange error. My ultrasonic sensor, when both speakers are sticking out of my case, don't work at all. It's a black case. It gives very "near" readings". But it does work when outside. ...
4
votes
3answers
2k views
Can't get consistent readings from Sharp IR range detector
I'm in the very early stages of trying to build a robot that wanders around and builds up a map of its environment. I'm using an Arduino and I currently have a Sharp 2Y0A21 IR range detector sat on ...
2
votes
2answers
318 views
Where to put stabilising capacitor?
Following on from this question. Can I place the capacitor anywhere in the circuit before the IR Distance Sensor? In my project I have 2 PCBs: A power circuit and a Processing Circuit. In the Diagram ...
4
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2answers
4k views
rangefinder (very long range), ultrasonic or laser… for arduino?
I have a maxbotics Ez1 plugged to an arduino
but i was wondering how to build a digital tape measure and to connect it to an arduino, for measuraments longer than 10 feet, maybe 20, 30 feet or ...
5
votes
1answer
120 views
Infrared ranging
I've been taking a look at these swarm robots and am very impressed. There is, however, one aspect of the robots I'm confused about, which is the infrared ranging they use.
The robots have a wide ...
4
votes
3answers
2k views
Best way of making a trip-wire type device?
I'm wanting to make a type of electronic "trip wire".
My basic idea is to have like a laser and basically when the laser is interrupted then it sends some signal to a microprocessor.
I'm not tied ...
