All Questions
12 questions
-2
votes
1
answer
282
views
LED blink patterns with multiple LEDs with millis() not using Delay()
I want to make LED blink patterns with multiple LEDs with the millis() function. I researched about it but did not find a perfect solution.
I found one blog, but it is using a LED pin number array; I ...
- 1
2
votes
2
answers
992
views
Toggle button switches through case statements with button debouncing
The overview of my code is that I want a toggle button to be pushed and each button push will move the code to the next case statement. In each case statement, there will be different LED functions. I ...
- 73
2
votes
2
answers
87
views
Trying to keep my main code running unless an input is LOW for a certain amount of time
I have code that creates a sequential signal with 4 LEDS. It cascades to the right. This works when I hold down the input button. What I need help with is having the code run exactly the same when ...
- 73
3
votes
1
answer
974
views
How do I run 4 LEDs sequentially based off of a push button input?
I am trying to create a program that runs 4 LEDs sequentially while also being able to do other things with different inputs and outputs. Because of this, I am using the millis function and not the ...
- 73
3
votes
1
answer
91
views
Fader OOP Problem
This code works and it can fade three LEDs without any problem, obviously you can even add more of them : )
// Pins Definition
const int button1 = 13;
const int button2 = 12;
const int button3 = 11;
...
- 145
1
vote
3
answers
187
views
Ignoring the first high output from the sensor
If the vibration sensor with Arduino detects two high inputs within 1 minute, I want the led to flash in one second.
My ability to write Arduino code is very low; I tried with millis() but I couldn't.
...
- 51
0
votes
1
answer
564
views
How do I put timers by using millis on 3 PIR sensors?
I want to make the PIRs to stay on for about 1 minute. I've found the code that can do so for 1 PIR, but I dont know how to apply the code for 3 PIRs.
Here is the code for 1 PIR with timer using ...
- 3
1
vote
3
answers
215
views
Time counting using millis
I am trying to write a code where photoresistors (a or b) sense blinking of the light, and lights LED (k and d) simultaneosly with that blinking. And I want that when both photoresistors sense dark ...
0
votes
1
answer
264
views
How to replace the delay() function in my code?
I'm new to Arduino and I currently have a project that involves the control of an LED via ultrasonic sensor. Basically, if an object passes through the ultrasonic sensor, the LED will be ON for 5 ...
0
votes
2
answers
844
views
Press on pressure sensor once, turn on LED for 6 seconds
I am working on a project where I would like to press on a pressure sensor (0-1024) once and turn on the LED and turn off by itself after 6 seconds. I am quite new to arduino and I can't seem to ...
- 1
0
votes
2
answers
86
views
Issue with simple project
I'm new to Arduino and today I have a problem with this code:
int led_1 = 10;
int led_2 = 11;
int led_3 = 12;
int button = 3;
int time = 0;
byte val = 0;
void setup() {
// put your setup code here,...
- 103
6
votes
3
answers
6k
views
Visual clock with millisecond display refresh rate
I need to create a millisecond capable visual clock - I will use the clock for visual frame synchronization of multiple cameras. I found this project but it seems to use a LED display that only has ...
- 167