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Questions tagged [proximity]

The tag has no usage guidance.

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Troubles with APDS-9900 proximity

So I've received few APDS-9900 sensors and found out, there's no library for it (9960 type is supported only). I took that library and device documentation, and created similar library. Ambient light ...
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1answer
52 views

Serial monitor doesn't work with piezo buzzer

So I can't see the distance of the proximity sensor anymore as soon as I type the code for the piezo buzzer. I've tried many things but it doesn't work.. Can anybody help me fixing this? int trigPin =...
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2answers
76 views

Trouble using proximity sensor as input and LED output

I was wondering if anyone had any pointers or advice to make this project work. Essentially I would like to have the LED fade (meaning like fade on and off at a calm rate) at one rate when there is ...
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0answers
499 views

ESP8266 with CapacitiveSensor Library for proximity detection

I am trying to detect proximity using the CapacitiveSensor Library https://github.com/PaulStoffregen/CapacitiveSensor I have tried to use this lib with an Arduino UNO for proximity detection by adding ...
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1answer
275 views

Arduino - Ultrasonic Sensor for use instead of analog potentiometer for proximity control [closed]

I was hoping someone could assist me with a project. I have built a device which uses a potentiometer (analog) to control an audio filter (analog). I was looking to use the arduino dual ultrasonic ...
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1answer
65 views

High range Obstacle detection system

I am making a high range and fast Obstacle detection system , HC-04 is slow for that, other sensor don't have the range and Lidar is too costly. Any idea how to make a long range(more than 10m) high ...
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2answers
112 views

How to analogRead() 2 separate pins simultanously?

I am trying to create a simple piano playback using a flex sensor, a proximity sensor and a piezo buzzer. I want to have it so that when the flex sensor is triggered, a sound is played on the piezo ...
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2answers
1k views

What sensor would work for soccer ball detection efficiently using Arduino?

I want to make a soccer goal counter using Arduino and some sensors. I built using an ultrasonic sensor, but it does not detect if the ball is moving too fast. Are there any other sensors I can use to ...
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1answer
198 views

How do I use two PulseIn() functions simultaneously in Arduino?

I want to connect multiple Ultrasonic sensors to my Arduino board. For that, I need multiple pulseIn() functions to work at the same time. How can I do that?
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1answer
137 views

build simple IR sensor with 220 ohm and 1000 ohm resistors

I am brand new to the arduino board and I am trying to build a simple IR proximity sensor. I bought a handful of emitters and detectors from amazon here: https://www.amazon.com/gp/product/B01HGIQ8NG/...
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1answer
237 views

Underwater positioning system (swimming pool)

I'm making a few experiments with a quite simple rover car I made using Arduino UNO and a few spare parts. Just for the heck of it I made it waterproof and now I want to toss it in my pool to make ...
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0answers
27 views

Low powered proximity aware devices

I'd like to build a set of lower powered devices that are aware of each other. I'd like to make something I can attach to a name badge at events (or even build into a name badge) so that when people ...
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4answers
8k views

How to increase the detection distance on Arduino KY-032 obstacle Avoidance sensor?

We've got an Arduino KY-032 obstacle avoidance sensor, and have spent a decent time searching and researching to find a detailed data sheet/manual to figure out how it works; but there aren't any ...
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2answers
982 views

What is the most accurate sensor for detecting ping pong ball?

What is the most accurate proximity sensor for a ping pong ball? I will be using this to calculate 3D positioning of a ping pong ball in flight. I only need to detect the ball within 0-5 feet (...
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1answer
1k views

Fade LED strip using proximity and map() function

I'm using a sonar sensor to detect proximity, and need to control the brightness of an LED strip in direct relationship to the distance detected. For example, as someone moves toward the sonar, the ...
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2answers
1k views

Problems controlling servos using proximity sensor

I've just started using Arduino and I need to make a code to simulate the behavior of a lizard, meaning that if you come close to it, it moves away from you. I'm using a "Arduino duemilanove" that my ...
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1answer
305 views

Larger NFC antenna? [closed]

Goal: I would like to be able to transfer some information to an Arduino Uno board via an NFC shield/antenna. The situation requires that the NFC tag may potentially hit anywhere within a circular ...
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3answers
634 views

XBee shield communication

I need to communicate between two Arduinos using XBee. I am new to XBee and hardware. The two Arduino Unos need to send a message (number) to each other and light an LED or play a sound, when they ...