A button is a simple input component which responds to being pushed by a user.
0
votes
1answer
20 views
Version of esp8266 to connect display and button
Which version of ESP8266 module (e.g. ESP-01, ESP-02, etc.) should I chose to connect it with display (OLED) and button?
I want to create some kind of old school pager.
0
votes
1answer
28 views
Trying to start a timer to change lights when a button is pressed
I am trying to setup a series of lights (traffic lights) that change based on a timer that begins when a button is pressed. The goal is to use the lights to track how long its been since you pressed ...
0
votes
1answer
28 views
IR remote unstable button numbers
Question
Is there a reason for unstable button numbers of an IR remote?
Desciption
I wrote a remote class where I identify the pressed number of the remote to set states. But however I get never ...
1
vote
2answers
69 views
Why is my pushbutton always reading LOW?
I know this is ridiculously simple task but I spent the last two hours trying to get this to work and it is not working. I don't have an Arduino but I have an ESP8266 Huzzah Feather which is ...
0
votes
3answers
15 views
Only return button state once in X amount of time?
I want to detect if a button has been pressed, but what I don't want is for it to keep returning the "pressed" state more than once within a second or two.
For example, with this code:
void loop() {
...
0
votes
1answer
52 views
Arduino 5V relay module 220V problem
I have an Arduino connected to two 5 V relay modules, one 4 channels and one 2 channels.
The problem is that when a relay is activated sometimes it activates and the other one. This is not happening ...
0
votes
1answer
23 views
Integrating 2 push buttons to toggle the LED ON and OFF
Hey guys need your help in verifying out this program about toggling the LED ON and OFF using 2 push buttons.What i actually want is to let my LED stay ON when i press and even leave the push button-1 ...
1
vote
0answers
15 views
LED and LCD game
I am making a game where four different colored LEDs are flashing randomly, and when the green LED lights up, the user presses a button. If the user pushes the button when the LED is green, I want my ...
0
votes
1answer
19 views
How to get a button state change within a for loop?
I have a for loop inside my void loop() that triggers a piezo.
What I want to happen is when I press a button, it breaks the loop of the piezo, but right now, it's as if it isn't detecting the button ...
0
votes
1answer
28 views
Arduino metronome - Change time signature on button press
/**************************************/
const int lowestPin = 1;//the lowest one attach to
const int speaker = 13;
int ts = 4;//how many beats you want
int count = 1;
const int keyPin = 12;
int ...
0
votes
1answer
35 views
Arduino LiquidCrystal_I2C fast overwritting
I have an arduino board connected to 2 temperature sensors, 2 switch buttons and 1 lcd display.
When the switch button changes to off, "off" is printed on the lcd display. When the button state is ...
1
vote
2answers
81 views
Detect how long a push button is being pressed?
I would like to detect how long the state on/off is going on for. Is there a way to do that? I would like to do that for two reasons:
I would be able to make a very simple toggle button. (I know ...
0
votes
1answer
85 views
How to change Void with button press
I have 2 buttons and 2 voids (blink_slow) (blink_fast).
i need to be able to press button 1 and blink-slow void will run, then press button 2 and blink fast will run. none of my code works, any idea ...
0
votes
1answer
33 views
Changing how a longpress is executed
I have an RGB LED common Anode attached to my Uno and this code detects a long press to turn the LED on and off. Short presses cycle through colors, then off.
The problem is that a longpress is ...
3
votes
2answers
79 views
Arduino with multiple buttons - will power be an issue?
I have a, hopefully simple, question related to creating a circuit with an Arduino board; feel free to dismantle the idea, I'm, unfortunately, not well-versed in electronics.
I have a spare Arduino ...
1
vote
4answers
180 views
Why doesn't this debounce function work?
Edit 2
I made a function that works, but I'm still confused about just one thing...
I'm very confused about how variables work in C++.
In this program...
boolean debounce(void)
{
static ...
1
vote
1answer
104 views
What is the correct way to wire a piezzo buzzer with a potentiometer and a button?
I'm working on a morse transmitter (kind-a), this how it looks like now:
It's working, but is it correct? My piezo buzzer is 3-24V. I use the potentiometer as a volume control. The button is for ...
1
vote
2answers
49 views
are 3 connections necessary for a push button?
I'm referring to the 5th circuit (see below screenshot) of the sparkfun manual came with the arduino uno. Instead of connecting all three of the (+) (-) and the digital pin to each push button, can I ...
2
votes
1answer
53 views
Noob coding - don't know what's going wrong - controlling relays with IR and button
I'm new to the forum, electronics and coding...so pretty green really but really enjoying messing around with the arduino so far and I think I'm picking up some skills just by messing around.
I ...
3
votes
1answer
88 views
sending ctrl-z in a struct?
I have a set of buttons wired to an arduino leonardo that are meant to send either single keystrokes to a computer "a, b, c..." etc, or a key sequence like ctrl+z (to perform an undo command.) ...
1
vote
2answers
95 views
Instead of 1 and 0, make display say On or Off
So for my project, I am making a button that turns on and off an LED, but also display the state of the led on an LCD and by Serial. But my issue is, I don't want it to just show a 0 or a 1, I want ...
1
vote
1answer
138 views
Arduino sending keystrokes via push-buttons. Proper bouncing and manually setting buttons?
I have a simple set of 8 push buttons wired to a Teensy 3.2 board (which uses Arduino via Teensyduino plugin). The 8 buttons are on pins 1-8 and their common ground line (one line soldered to each of ...
1
vote
2answers
93 views
How to simulate delay() to debounce mechanical button using millis()?
Im trying to use the millis() function as a replacement for the delay() function in order to debounce a mechanical button. This is for an electric drum kit I am building. Im using a teensy Arduino to ...
1
vote
1answer
72 views
Debouncing a limit switch in Arduino ISR with delays
I have a limit switch attached to an arduino Mega 2650 for motion control. The limit switch's two Normally Open contacts are connected to an Arduino Pin and ground, such that when the Limit Switch is ...
0
votes
0answers
74 views
Remote iPhone home button
I wanna create this type of product
http://www.satechi.net/index.php/smartphones-and-tablets/accessories/remotes/satechi-bluetooth-button-series-home-button
It's an external home button, but I don't ...
1
vote
1answer
82 views
Help with button library, hold>2s doA else doB
I'm using JChristensen's Button Library to debounce my buttons and provide extra functionality. I'm trying to use his press & hold function to do something if the button is pressed and held for ...
1
vote
1answer
38 views
How is LED powered when PIN 2 is disconnected?
Using the Arduino tutorial "Button", I have noticed that if I totally disconnect Pin2 from the circuit, the LED comes on dimly.
I am trying to understand HOW this happens. Is it simply due to being ...
0
votes
2answers
84 views
After moving project from Arduino Mega to Due, pushbuttons now erratically toggle multiple buttons
I've had a project running successfully for months on an Arduino Mega, and today I tried to swap the Mega for a Due to increase the speed. After making the change, the entire project is working ...
2
votes
1answer
39 views
1x4 Button membrane help
Im trying out this membrane from Adafruit that i bought last week but i have a little issue. ITS SO SENSITIVE! i as so just touch it with my finger and it transmits!. Anyone that has worked with this ...
0
votes
1answer
70 views
Buttons and LED
I am creating a program that turns on and off an led. When two buttons are considered "high". But there is a twist, The first button needs to stay "high" until the second button is pressed and the led ...
1
vote
1answer
181 views
Control servo motors with buttons and via web application
I have this assignment and I have been tinkering a long time about it. I need to make a simulation of a parking lot where servos would represent the ramps.
I will be using 2 Arduinos running the same ...
0
votes
1answer
28 views
Newbie Question with 4 pin button
I suspect this is a very Naive question.
But the answer will teach me a lot.
Why does this circuit work when I connect the Digital Input (Digial Pin 2) to Pin 4 of the push button. But does not when ...
0
votes
0answers
34 views
Creating a keypad matrix that will communicate wirelessly with an Arduino Uno
I have a 30 button matrix and I would like to use a keyboard encoder to decipher what button was pressed. I would like that information (what button was pressed) to be wirelessly sent to my arduino ...
1
vote
0answers
27 views
Durable, thump resistant, buttons, at a cheap price
Not really an Arduino specific question, but I guess a lot of people on this board are also hobbyists, so they might have done something similar...
For my project I need to connect buttons to the ...
0
votes
2answers
80 views
Buttons for LED strip only work when held down
I am trying to make a 24 button board that assigns different methods to each button. When a button is pressed, it should interrupt the method of the previous button and begin the new method. ...
0
votes
2answers
95 views
Multiple buttons activating different methods for an LED strip
I am trying to use different buttons to activate different methods for an LED strip. However, when one button is pressed after another has been pressed, I want it to interrupt the first buttons method ...
0
votes
2answers
190 views
Delay workaround needed for RTC and LCD-shield buttons
Following configuration:
Arduino UNO R3
Real Time Clock DS1307RTC
LCD1602 Shield with buttons
Photo resistor
DHT11 (Temp & Humidity Sensor)
I need the function delay(1000) to display the ...
1
vote
3answers
64 views
Detect button on a ground line (reverse eng)
I've found a circuit board that has a couple of circuits (buttons, IR Receiver, LED, USB). The thing is that following the line for interfacing the buttons I came across what seems to be like buttons ...
0
votes
1answer
26 views
Finding connectors for push button component
What type of connectors would I use for these buttons?:
http://www.adafruit.com/product/1477
They sell wires with the connectors already crimped on, but I only need the connectors.
I found ...
2
votes
1answer
162 views
How to detect if more than one button was pressed
I am designing a turn signal bicycle blinker using two pushbuttons as input, one for each side, with a corresponding light for each button.
The idea is this:
Pressing one side makes same side start ...
5
votes
2answers
206 views
Choosing wireless tech for lowest possible lag
I am drafting a pub quiz project, where the Referee gives a signal and multiple players push their buttons. The first to push wins the right to give an answer.
I want all buttons (referee's + X ...
1
vote
1answer
150 views
Using shiftin() and shiftout() with the same circuit - what to consider?
I am designing a smart (or at least I hope so) onboard bicycle light system. The system will have an Arduino (currently prototyping with UNO) and a subsystem composed of a "panel" of buttons and leds.
...
12
votes
2answers
806 views
How to avoid that my arduino clicks eternally?
I have accidentally implemented a program that imitates the click of the mouse.
The problem is that now I can´t delete the program because each time that I connect the USB, the computer starts ...
1
vote
0answers
22 views
Connect push button to ArduiMU
I've got an ArduiMU V3+ and would like to connect an ordinary push button to it.
How would I connect it to it.
0
votes
0answers
181 views
Pressing button stops listening on nrf24l01
I have been tinkering for 2 days to manage send and receive between 2 arduinos. My code is bellow:
Arduino 1:
#include <SPI.h>
#include <RF24.h>
#include "printf.h"
#define LED 2
#define ...
1
vote
0answers
68 views
Joystick simulator for arduino uno
I'm making a project, and i'm waiting for a joystick that will come to my hands in a few days. But, i have to start programming the joystick now, any way to emulate the joystick? I already have ...
2
votes
3answers
604 views
My button control working in reverse
I built this circuit to learn button control.
But my code (or button) is working in reverse. I want to initialize led flash effect when the button is pressed with this code
buttonState = ...
0
votes
4answers
1k views
good button debouncing/stateChange library
I need debouncing/stateChange for a push button configuration.
Is there a BEST library for debouncing/stateChange buttons in arduino (without delay)?
1
vote
2answers
207 views
Fog machine Arduino integration
I want to control my fog machine with an Arduino. Has a simple button that is used to activate the machine. I want to press this button using an Arduino digital output pin, but the fog machine is ...
1
vote
1answer
494 views
Hooking up 12v Push button to arduino uno/nano
I want to use one an push button with an led in middle, similar to this one on eBay.
The push button has a 12v input I want to hook it up to an Aduino Uno or Nano.
Is there a way to hook it up and ...
