Questions tagged [project]

Refers to the sum total of software, circuit diagrams, documentation, libraries, and hardware that make up an Arduino based application.

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Need Ideas for Projects [closed]

I am a newer "arduinoer" if that is even a noun, and I am looking for some project ideas, they can be of any type. I am doing this to expand my arduino knowledge. If by change anyone knows ...
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1 vote
1 answer
59 views

MAX30100 and ESP8266 NodeMCU Serial Errors

This is my final year project and for some reason, the max30100 sensor defaults to static values once the HTTP post request has been performed. #include <ESP8266WiFi.h> #include <...
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1 answer
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Is there accurate connection procedure for connection between an esp32 and ultrasonic sensor(HC-SR04)? [closed]

I am currently working on a project which integrates esp32 and HC-SR04 and send the data from HC-SR04 to my own domain. The connection diagram is this And the code which I use is this, const int ...
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3 votes
0 answers
130 views

Integration of MAX30100 and DS18B20 Thermal Probe Integration

This is for my final year project that I have been tasked with designing a patient monitoring system. However, during the last stretch of model prototyping, I am experiencing issues with my MAX30100 ...
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1 vote
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Problem regarding on HC-SR04 sonar with an additional stepper and SG90 servo motor

I'm making a project based on HC-SR04 ultrasonic sensor with a stepper motor and an SG90 servo motor. I have done some conditions for my stepper motor that is given below. Now I want to include my ...
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1 answer
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First Arduino Project - Need Advice (powering WS2812B LEDs)

I'm making a long LED display made up of 3 (8x32) LED matrices to go inside of a car. I can't seem to find any in-depth guides on this sort of thing. If anybody has examples that they would like to ...
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2 answers
476 views

Can a 12V sensor connected to a 5V output signal of an Arduino Uno

I am doing a project for object detection. But my problem is I'm using a 12V photoelectric OMRON sensor to connect with 5V Digital PWM port 3 on Arduino using normal coding. Do I need an extra circuit ...
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1 vote
0 answers
103 views

DHT11 thermometer connected to a LCD and 2 servos connected to joysrick [duplicate]

Im trying to find a way to run two codes from the one arduino me being an absolute begginer doesnt even know where to start the DHT11 thermometer is connected to a LCD showing temperature and humidity ...
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2 votes
1 answer
96 views

Maintain constant PWM voltage with changing Vcc

I am making an arduino project with a single lithium ion battery, and want to be able to maintain a constant PWM voltage, even when the battery goes from 4.2-3.2v. I have been able to read the Vcc ...
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0 votes
1 answer
38 views

What is this potentiometer for?

I am working on an anemometer project using Arduino. I don't know barely anything from Arduino and I am following this tutorial. I have some doubts on the making part. This is what I have to make: ...
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1 vote
2 answers
222 views

Whats the best way to keep an Arduino in a waterproof junction box and prevent overheating?

I am trying to make an automatic garden gate unlock that runs on a timer. I plan on running an arduino uno 24/7 with a software timer that activates a motor to release a bolt lock. I am going to fit ...
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1 vote
4 answers
1k views

What are examples of large Arduino code bases and how are they organized?

I'd like to find out: how big can an Arduino project get, is there some limit? are there examples of large open source code bases? I did some research but find only example projects with single .ino ...
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2 votes
1 answer
115 views

Making Cases for Projects

I've been messing around with arduinos and other microcontrollers for around a year now and I've always struggled to find ways to encase my projects. I've seen some people use custom PCBs and then 3D ...
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-2 votes
1 answer
62 views

the boxservo works contrary to the code

i want to make a uselessbox .i connected the circuit correctly,i checked every thing several times and every thing is in right place[ based on descriptions and pattern],but when i turn it on,the ...
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5 votes
1 answer
5k views

Useless box wiring and code

just want to give a back story first. So i saw this video on youtube about the useless box, and i thought that it would make a great gift for my 7 year old. So i went out and bought everything that ...
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0 votes
1 answer
268 views

What is the correct folder structure for including local headers in my Arduino project?

I am designing a "project" with 5 Arduino's (each with separate codes), communicating with each other using NRF24. All the 5 codes are different except they share a common header "MyHeader.h". The ...
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1 answer
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Requesting help with CNC Project using Arduino

I have made a setup with Arduino Uno, Nema 17, T8 lead screw, IR Sensor and a DC motor. I am trying to establish a code which: Resets Home position of the Machining Head on the lead screw Has an ...
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2 votes
1 answer
110 views

I´m trying to make a kind of videogame with Arduino UNO

it´s a school project, but I'm having some problems to create a menu selection. In the LCD, all the character are overwriting, I'm a beginer, so i dont have any idea of what i was doing wrong (ps.: ...
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1 vote
2 answers
87 views

Would it be feasible to build an arduino that takes 12v on/off signals from a vehicle diagnostic port (1984 pre-OBD)?

The vehicle is an AMC eagle, they come with a diagnostic port I have made a diagnostic tool that lights led lights when signals turn on and off, but it has to be wired in and is bulky. I am wondering ...
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2 votes
2 answers
479 views

Using a photo resistor to detect objects of a certain color

I am trying to build a robot that detects cubes of a certain color, and later picks them up. I was planning to use a camera and process the image, but I was told that Arduino is not capable of image ...
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0 votes
1 answer
152 views

Looking for a cheap small arduino ish board [closed]

I'm looking for a cheap and small bluetooth board for a project. I found this one, but I find this one too expensive, are there cheaper alternatives, in similar size? Thank you!
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0 votes
1 answer
110 views

How to regulate a led on-board? [closed]

There is blink project consisting 3 sections: 1 - regulation of the led brightness using a potentiometer 2 - whenever: the button is pressed - the led is on - the button is released - the led is ...
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2 votes
0 answers
60 views

Project: Relay is ticking, but not actually switching [closed]

I'm trying to make an automatic planter for herbs etc. I finally got everything 3D printed and wired together. But for some reason, the relay I'm using refuses to switch or enable certain connections. ...
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1 vote
1 answer
159 views

Small Baseball Scoreboard using 2 to 3 breadboards

I'm helping my son start an Arduino small baseball scoreboard (roughly 2 or 3 breadboards in size). Im thinking to use qty 2, 2 digit 7 segment LED's (score of each team), an LCD 1602 module (inning ...
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1 vote
1 answer
269 views

Confusion over Transistors for a switching circuit with an Arduino Mega 2560

Apologies if this is a stupid question asked by a noob, but I've looked around to try and find the answer and just can't work it out. Basically, I'm making a project on thingiverse (Glitch's MK2 ...
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3 votes
3 answers
257 views

Controlling 10+x 5m led strips with 10+ individual analog floor switches

I am looking to control around 10 (exact number TBD) non-addressable 5m led strips with an Arduino. Each led strip will be activated when a corresponding DIY analog floor switch. The idea is to have ...
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6 votes
2 answers
6k views

What are the problems with using an Arduino in a production environment? [closed]

I am thinking about making a real project using arduino to earn money. What could be the objective reasons (from both a technical and a business perspective) to not use an Arduino in a real ...
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2 votes
0 answers
451 views

How can I implement a parking counter with multiple entrances and exit?

I'm relatively new to arduino projects and am trying to solve a real world problem on a parking lot space counter. My Idea is to have a sensor placed on the entrances and exit to count the total ...
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1 vote
1 answer
195 views

Is it possible to digitally stop a moving motorbike using an Arduino module?

I am working on a bike protection project that is supposed to be part of my CS syllabus. Although I got most of the things worked out, there is one thing that bugs me; that is to how to stop a moving ...
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1 vote
2 answers
580 views

Arduino whack-a-mole game not working

Everyone, I am new to this. Currently I am trying to make a Whack-a-mole game for my school project. There will be a total of 6 moles (corresponding to 6 LEDs, which will light up randomly). At each ...
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1 vote
1 answer
116 views

Arduino Mega prototype analog timer interrupts: newbie question

I am currently using an Arduino Mega with a fast vibration sensor to trigger the components operation (force sensor, temperature sensor) and also toggle sleep mode. I am very new at this and I have ...
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0 votes
2 answers
928 views

MPU6050 safe to use with glue?

My current project involves embedding an MPU6050 accelerometer into straps, one of which goes below the knee, the other above the knee. I need to fit the sensor into the strap and currently i have 6-...
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0 votes
2 answers
82 views

How to calculate the time it takes before the water valve stops dispensing water in an Automatic Water level controller?

I am making a project about an automated water level controller using ultrasonic, potentiometer and Arduino board. I need a mathematical calculation on how it works. So here's a simple scenario: I ...
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-1 votes
1 answer
72 views

What would be a good way to identify items spending as little as possible?

I'm a software developer for quite some time and now I'm going to start developing for Arduino. My question is related to technology I can use. It's also my first time posting here, so if this site is ...
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0 votes
1 answer
51 views

Arduino project - will this fit together?

I'm about to order parts for my project and I'd like to avoid some rookie mistake I might've missed. I'll be using Arduino chip and a wifi module to host a very simple webpage and a battery to make ...
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4 votes
3 answers
1k views

Moving motion sensor?

Long story short, I'm trying to build some form of device that you can wear and it will detect when something moves behind you. I wanted to use PIR sensors for the motion detection, but I have no idea ...
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0 votes
2 answers
84 views

Machine installed with arduino suddenly turns on when usb is unplugged

Why is my machine suddenly turns ON when I unplugged the USB on my computer? Does it have connection on the auto reset feature of my arduino board? String input = ""; void setup(){ Serial.begin(...
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0 votes
2 answers
2k views

Are there flexible pressure sensors for Arduino that can measure forces of at least 600 lbs?

I'm in need of flexible pressure sensors that can read how much force is exerted on someone's foot while running (these sensors would be placed inside the shoe). Since pressure can often be three ...
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0 votes
1 answer
60 views

Detecting Motion behind a robot

I am building a motion following robot. It has two PIR sensors on the left and right. It has an ultrasonic sensor in the front. When either of the PIR sensors detect motion then it turns to that side. ...
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-3 votes
2 answers
153 views

Suggest me some good seller for Arduino UNO [closed]

I want to start a new project with arduino uno and want to make some amazing mini projects, but i am confused that from where should i buy. So please suggest me some affordable robotic stores.
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0 votes
1 answer
2k views

Arduino "piston" device

Is there any compact piston-like devices on the market that can apply pressure safely various parts of the head? I can further expound if needed. The ideal size would be something within the 1-2 ...
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1 vote
1 answer
1k views

USB 1.1 Low Speed project for Arduino UNO/ATmega328P to learn USB protocol

Arduino UNO is 5V, 16 MHz. USB 1.1 Low Speed spec operate: at 5V level - so we avoid to maintain voltage level at 1.5 Mb/s - so we have 16/1.5 ~= 10 instructions per elementary protocol signal Is ...
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  • 111
2 votes
6 answers
919 views

I want to build a radar alert system with Arduino

I'm new to all this. I bought an Arduino Uno recently and an Ultrasonic distance sensor. My mom's cats keep walking down into the basement and doing their... business. Anyhow, I want to create a radar ...
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2 votes
0 answers
570 views

7 Key Educational Piano with Capacitive Sensor

I am working on a project for grade 10 computer science. I am supposed to make a piano that has 7 keys using a capacitive sensor, and the piano is supposed to teach you songs like Twinkle Twinkle ...
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0 votes
4 answers
379 views

What project design tools are available?

What do you guys use for project designing? I just found out about AutoDesk's 123D Circuits, which is nice but I wonder if there is something with more components, tools, etc? For example, I can add ...
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1 vote
2 answers
216 views

How has Arduino been used in the classroom?

I remember seeing Primo, this robot that is based on Arduino and serves to teach kids to program. My interest in the platform comes from there, but it is always nice to learn about other cool ...
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88 votes
7 answers
50k views

How to organize my Arduino projects' structure for easy source control?

It's been a long time I've been looking for a good answer to this question. Typically, any Arduino project but the simplest one will include: The main source code file MyProject.ino Libraries ...
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