Questions tagged [button]

A button is a simple input component which responds to being pushed by a user.

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53 views

Serial.print() Inferferes with my digitalRead()

I'm running into issue properly reading a button connected to a digital I/O pin on my Adafruit Feather HUZZAH ESP8266 device. I've implemented the debouncing script exactly as the Arduino provided ...
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0answers
31 views

DigitalWrite enabling external circuit only half ot the times

I'm a beginner making a simple arduino for a school project with an arduino uno. After the press of a button I activate, after a small delay, an external circuit obtained by disassembling another ...
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1answer
30 views

How to connect an Output to a Pullup Input of another arduino

:tldr; Could problems occur if one connects a HIGH Output of one arduino to a PULLUP_INPUT of another while using differed power sources? Hi I'm building some devices for a LARP Dungeon (think Escape ...
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3answers
80 views

Send button only works when pressed immediately after

I am new to Arduino and I am trying to create a Morse code based "chat". I can submit a message in Morse code using the send button (the one on the right,) and when I press the button on the ...
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0answers
21 views

Building a line follower and keep getting errors just need help getting in the right direction to finish the code error located at the bottom [closed]

const int leftMotorPin = 9; const int leftSensorPin = A0; const int rightMotorPin = 8; const int rightSensorPin = A1; int rightlightThreshold = 100; int lightThreshold = 300; int buttonPin = 7; int ...
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1answer
44 views

Arduino UNO With On / Off Module Switch + Battery Advice

So I have the following connected and the programming works fine when connect by USB The Parts 1 Arduino UNO 1 Laser Module (KEYS) 1 Rocker Switch Module (Standard 3 PIN) 2 Variation Motors (KEYS) 1 ...
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0answers
26 views

New to Arduino and looking for direction to research for a project idea [closed]

I'm fairy new to python, learning for about 5 months by myself, and found out later that arduino is coded in C/C##. Transferring general python knowledge to Arduino im sort of able to figure out how ...
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0answers
20 views

Let Servo rotate when file has been uploaded to webpage

I'm building an installation with a NODEMCU 1.0 where I want a servo motor (MG90S) to rotate when a file has been uploaded to a webpage. For my first step I have used this tutorial: Build an ESP8266 ...
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3answers
59 views

How do I make my piezo buzzer only hum once without repetition?

I have a problem with getting my buzzer to only do the tones I programmed in once. I know I have to add some sort of code but I'm relatively new to this so I don't really know. I want it to start ...
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2answers
97 views

Pushbutton to initiate a 5 time flash

The following code operates in a way that LED starts to flash only if the pushbutton is pushed for one second. I want to change this and make the LED flash for 5 times, immediately on push, regardless ...
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1answer
41 views

Doesn't stay in sub menu

So hello everyone. I'm creating simple menu with few sub menus,on my lcd screen. But i have run into small problem, i can't stay in my sub menu. When i press select button, it goes into submenu ...
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0answers
60 views

Arduino button voltage versus HIGH/LOW state

I'm measuring voltage between button's ground and input pole on the following sketch. When button is on off state, there's 5V there, when it's switched on and led turs on, there's 0. Is this a correct ...
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1answer
82 views

Making pushbutton behave as a toggle switch with ezButton - do I have to use ledstate with =! operator

I'm using ezbutton to make a pushbutton act like a toggle switch, first press doing permanent on, second press doing permanent off. I'm just trying to understand the basic coding. This project is just ...
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0answers
39 views

Enter a three digits number using push button connected to Arduino [closed]

I have the code given by my tutor and I need to change the code to be able enter a three digits number with the push button of switch module. Here is the code which can only enter one individual ...
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0answers
32 views

How to program the joystick button to reset everything?

In this project, I'm making a stickman rush game with a joystick. Where when the joystick moves up and down, the stickman also moves up and down. And there are obstacles, that when the stickman ...
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29 views

permanent shutdown of the alarm

#include <RTClib.h> #include <Wire.h> #include <LiquidCrystal_I2C.h> LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD address to 0x27 for a 16 chars and 2 line display int nowHr, ...
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0answers
84 views

Increase or decrease const byte value inside the code with a push button

I'm kind of new in the Arduino world. I decided to make a self learning project with an Arduino where it controls a conveyor that simply moves from right to left and back again. There is a start and ...
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60 views

I need to make button to turn off my alarm on clock

well I get task to make school project alarm clock using arduino, xd as you can see im not very good at it i mean i know something but not everything so please can someone help me, i copied this code ...
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0answers
51 views

Single LED controlled by two pushbuttons - one of which acts like a toggle switch

Trying to control this LED with those 2 pushbuttons - one button that starts a short flashing sequence, another pushbutton acts like a toggle switch, one press bulb is on, another press bulb is off. ...
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1answer
47 views

force the state of the output

i have one input and buzzeer output and reset pushbutton if the input is high the buzzer will be on and i want to turn off the buzzer by the pushbutton even if the input still high any suggestions to ...
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0answers
46 views

Why is my button not working?

I'm trying to making a traffic light for my school project but my button for the traffic light doesn't work. The traffic lights should light up normally but when the button is pressed all LEDs should ...
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1answer
50 views

Arduino while loop with or condition

How do I write a program to wait (delay) until one out of two buttons pressed? I have written a program to wait until a single button is pressed. It's working fine. However, if I extend it to second ...
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1answer
53 views

Stepper motor won't change directions!

I am driving a bipolar stepper motor with an a4988 driver using the AccelStepper library. My goal is to press a button and the motor moves CW, then another button for CCW. I have looked at another ...
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1answer
36 views

Unable to make a really basic sketch work

I've been learning how to encapsulate my code within functions, and one of the examples I worked on is a simple INPUT_PULLUP button. When I upload the sketch from the arduino website everything works, ...
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1answer
58 views

How to wire and control a 16mm button with 2 legs using arduino?

I can't find any tutorials online explaining how to wire and control a 16mm push button like the one in the picture: Do you have any suggestions as to how use it with an arduino or a raspberry pi?
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0answers
28 views

How to make my sensor reads when i pressed the button

Hi I'm making a digital fare meter, I have a problem in how my sensor reads when I'd pressed the button(single tap). I need the sensor to read once I pressed the button because when I press the button ...
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0answers
25 views

Arduino Button switch LED without reset delay [closed]

trying to get a little helper working. Two LEDs, each one is on for 24hrs. Only one is on at the time. There should be a button to switch the states of the LEDs without restarting the delay. Example: ...
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0answers
81 views

Using AccelStepper to move a set distance while a button is held down

I'm working on a project and using a nema 23 stepper motor and driver. Need to be able to move the stepper 1/32 rotation when I press a button. I need a small delay so I have time to release the ...
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1answer
59 views

Push button restarts the arduino [closed]

I have linked an external push red colored button to my arduino but when I press it, instead of giving me HIGH or LOW, it resets the arduino. I am a beginner to this stuff so could someone help?
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1answer
58 views

Timing push button code

I am trying to time how long button is held for. The code seems to work but with two problems: the millis values are being read wrongly. If you hold the button for 1 second, it returns holdTime of ...
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0answers
61 views

Problem in interfacing esp8266 with Arduino ide for simple blink program

Arduino: 1.8.13 (Windows 10), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, Flash, Legacy (new can return nullptr), All SSL ciphers (most compatible), 4MB (FS:2MB OTA:~1019KB), 2, v2 Lower Memory,...
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0answers
33 views

Will this be possible to do before I even get started. I want to automate my house window [closed]

I will have 2 buttons. Using Adafruit DC Motor Driver https://www.adafruit.com/product/3190 Top button is a function, bottom button is mode. The top button functions. Window 1: Single press will turn ...
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2answers
107 views

button connection without connection to 5V pin

There are two types of tutorials for buttons: I don't understand how a button on the first image works. Do we just hope that there is some non zero voltage and hope its enough? I think the first ...
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2answers
54 views

Rasberry Pi Controlling Arduino - Reads “Ghost” Input - Doesn't Complete Logic Loop

I am using an Arduino Atmega2560 clone, I have used it many times before with satisfactory results - although I haven't used it with my Rpi before. My Raspberry Pi is model 4 (B I think?). #define ...
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1answer
47 views

Question about button circuit

I'm quite a beginner at electronics, but thought I would try venture into it. Currently I'm working on a project where I need to reuse a button module salvaged from some old hardware, but I can't ...
2
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1answer
46 views

Adding a common activation pin to a group of buttons

I'm working on an Uno, which has only two interrupt capable pins, but i need at least three buttons to wake it up from its power saving mode. Is there a way to wire buttons such that, in addition to ...
2
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3answers
76 views

Can anyone help be get readings off of my potentiometer with a push of a button?

Hi I'm trying to get my Arduino Uno code to work with a in a specific way where if I push a button, the Arduino will read the raw potentiometer value once and if I don't push it nothing happens. https:...
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1answer
45 views

Arduino waits until button release to activate

I'm fairly new to arduino, and on my own I'm trying to move a servo to the left and right using 2 buttons. I've got it working for the most part, however when I hold the button down nothing happens, ...
2
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1answer
33 views

Input state is stuck HIGH when function called using input also uses same input to call another function

I'm writing a choose-your-own-adventure style project for a class project. My Arduino Uno is set up with a 16-digit LCD display and two pushbuttons with pulldown resistors. I'm wanting each function ...
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2answers
186 views

How can I add a potentiometer and more buttons to my custom game controller?

I'm new to using Arduino, and know next to nothing about programming. I'm currently trying to add a potentiometer, and possibly a few more button inputs to my 3D-printed guitar controller project It ...
0
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0answers
35 views

Playstation module seeming to glitch out

I am not sure if anyone out there is familiar with the PS2X module at all but I am seeming to have a few problems with it. Firstly whenever the square button gets pressed down on by me, all of the ...
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1answer
101 views

DFplayer, Play sound when pin is high

I have a code here, from DFmini player. I have a tactile switch. when I press it on and release it will play a sound. My question is that when I press the tactile but not release it so I want it still ...
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1answer
44 views

How might I add a delay, close the servo and go to the start again?

#include <Servo.h> Servo myServo; const int piezo = A0; const int button = 2; const int yellow = 3; const int green = 4; const int red = 5; int knockVal; int buttonVal; const ...
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2answers
107 views

I need help creating a code that moves a DC motor CW or CCW based off of 2 different buttons

I know I can make the motor move backwards and forwards with buttons but I don't want it to move at full speed. I want it to increment in very small amounts to where it can be adjusted very small ...
2
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1answer
92 views

Button to stop a stopwatch not working correctly!

I'm trying to implement a stopwatch with an LCD display, and I'm supposed to be using the attachInterrupt command to catch the button press. The clock runs perfectly, but the button input isn't caught ...
2
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1answer
66 views

status whether the switch is connected to arduino or not?

I made a small circuit in which a push-button is connected to Arduino via a pulldown resistor. So, whenever it is pressed it connects to 5V otherwise pulled down to the ground. this is working fine ...
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1answer
462 views

RGB LED using potentiometer and push button

I'm currently working on an assignment which has to turn on an RGB LED using a potentiometer and button. The problem I currently have is that the button is supposed to change the color I want the LED ...
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1answer
47 views

Saving a value with a click

I have a rotary encoder and 2 buttons to a. Store the encoder value b. Reset the encoder value to 0. The reset buttons work fine the issue is with the set/store button. Where the value changes without ...
2
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2answers
301 views

How do I make LEDs lights up one by one according to how long the button was pressed and hold

In my project, I am trying to create a timer display with LEDs base on how long a button was pressed and hold. There are 8 LED lights in total, when the toggle button was pressed, 1st LED lights up; ...
1
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1answer
224 views

Continuous push button detection in for Stepper control

Currently, I've worked on code for controlling stepper motor with pushbuttons. So, basically, I have to press two push button to run forward and backwards. but the problem is when I press the 1st ...

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