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Int fadeAmount = 51 // fadeAmount is equal to 20% of 255(max LED brightness)įloat buttonPressedCounter = 0.You researched and went out shopping on the internet and/or retail stores to assemble the ultimate home theater system. const int buttonPin = 2 // number of the button pinĬonst int ledPin = 9 // number of the LED pinįloat brightness = 0 // brightness of LED starts at 0 Is that what you want? If not, you need to post the code. Also when I stop increasing/decreasing the brightness and toggle the LED to go off, in the next toggle ON I need to save the last brightness it was.
SYSTEM BRIGHTNESS CONTROL FULL
When the LED reaches full brightness it changes the direction of fading and the LED’s brightness is being decreased. If i release it it stops to increase and stays ?t where it stopped increasing. The Led’s brightness is increasing as long as I am holding the button. What happens when web control is added, and the web user and physical user are fighting over what the LED should do? See what I mean about needing to define all the requirements, and to think about the various use cases? How long between steps? How big should the steps be? Should the LED start fading down from 255? Or from where it is? What should happen when the value gets to 0? Suppose the LED is fading up, and you press the switch again, for more than two seconds. Should the LED go off? Or should it go to fully on? Suppose the LED is fading up, and you press the switch again, for less than two seconds. What happens when the LED gets to full brightness? You release the switch 2.5 seconds later, and the LED is supposed to get brighter? You press the switch again, and the LED goes off. You release the switch in 1/4 of a second, so the LED is simply on (full brightness). My first thought was that when i press the button the Led to toggle and if I hold it for more than 2 seconds to start increasing its brightness. If not, another approach is needed.īuilding a web interface is NOT a beginner project. So, which of the three scenarios are you wanting to see happen?Īnd my second question is how can I make the program with Web interface to control it either with a push button and remote with a samrtphone/tablet?ĭo you have an Ethernet (or WiFi) shield? If so, one way makes sense. It’s a third thing if the LED should toggle when the switch is pressed, and fading should happen 2 seconds later if the switch is still pressed.
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It’s another thing if the LED should toggle when the switch is pressed, and should start fading if the release happens more than two seconds later. It’s one thing if the LED should toggle when the switch is pressed and released less than two seconds later, or should start fading if the switch is pressed and released more than two seconds later. You have not described what you want to do in enough detail for anyone else to actually write the code. Then, you can make decisions based on how long between the events. You’ll need to record when the change of interest happens. Examine how it determines that the switch has gone from not pressed to pressed, or from not pressed to pressed. Look at the state change detection example. You’ll bust a gut if you don’t breathe now and then. To be a toggle for the led with a single press and if I hold it down for more than 2 seconds to start increasing the brightness with PWM as with potentiometer.