Eclairage à LED - FlexLight - Fabricant et importateur de systèmes d’éclairage à LED pour les professionnels. LED Light Bulbs | LimitlessLED Color WiFi Bulbs For iPhone And Android. Alimentation spécial leds, transformateur spécial led, vaste choix spécial led au meilleur prix. Alimentation led 12 volts au détail. Transformateur led étanche ou non étanche. Controlling high power (or high number of) LED’s with an Arduino | The Custom Geek. A while ago I posted about my bench lights, and have gotten a number of request for schematics and code. I’ll gladly put the code up, but I also wanted to explain what I did so that others can create their own, or at least change my design up as they wish. The transistors I’m using are TIP122′s. You can find the data sheet here. They will switch a lot of power, but keep in mind, they need to have adequate cooling if you are going to push them hard.
Always remember, fire = bad. I covered the basic schematic for a few LED’s in the video above, but if you have any questions, feel free to post them in the comments and I will answer as quickly as I can. You can download the original (controller with LCD and hard buttons) code here. You can also download the newer (serial controlled – adjustable level) code here. Just a note, I will be using Vimeo from now on, but I will still put all my videos on YouTube as well. Starlight: Dimming a 12V LED strip with a mosfet and PWM. Dimming a 12V LED strip with an N-channel power mosfet is pretty straightforward. In this experiment I'm using 5 meter of cool white LED strip running at about 800 mA giving 10 Watt. An Arduino Duemilanove (my trusty lucky white one) is used to provide pulse with modulation ( PWM ). Digital pin 9 and 10 (also known as OC1A and OC1B) are used. They both use the Timer2 facility of the atmega328p microcontroller which means I can have them output exactly the same PWM signal.
Digital 9 is used to drive the mosfet and digital 10 is only used for displaying the unloaded PWM signal on the scope. On the scope you can see the yellow PWM signal driving the mosfet and the blue one that is not connected to any load. The following Arduino sketch does a simple PWM sweep in 10 steps per second: 1 void setup() 2 { 3 pinMode( 9, OUTPUT); 4 pinMode(10, OUTPUT); 5 } 6 7 byte b = 0; 8 9 void loop() 10 { 11 analogWrite(9, b); 12 analogWrite(10, b); 13 delay(100); 14 ++b; 15 } First thing I checked is RGATE.
How to build a flexible LED Curtain display by LED strips T1000S SD card controler Soft Display DIY. Blog du LED FlexLedLight - Le WIFI passera par les #LED en mode LI-FI | FlexLedLight, les LED pour les professionnels. RGB LED weatherproof flexi-strip 30 LED - (1 m) ID: 285 - $16.00. These LED strips are fun and glowy. There are 30 RGB LEDs per meter, and you can control the entire strip at once with any microcontroller and three transistors. The way they are wired, you will need a 9-12VDC power supply and then ground the R/G/B pins to turn on the three colors.
Use any NPN or N-channel MOSFET (although the big powerful kind is good for a large strip) and PWM the inputs for color-mixing. For powering, a good 12V supply is key. The one we carry will do well for fixed installations. We splurged and got the weatherproof kind with white background color. Please Note: these strips are weatherproof so they'll be more rugged than uncoated strips, but they not designed for long term submersion in water, especially chlorinated water, or exposed to UV (eg sunlight) for extended periods of time.
You can cut this stuff pretty easily with wire cutters, there are cut-lines every 10cm (3 LEDs each), and trim off the weatherproof cover with a hobby knife. Dimming a 12V LED Strip with an Arduino | Nick Rowe. I have a nice LED strip above my desk area that lights up the whole workspace: As part of building spirit, an internet of things hub, I’ve been thinking about how to get different kinds of things into the system. I would love my desk lights in the system. Maybe there’s a pressure sensor in the chair or a button on the desk and when I sit down, the lights come on and is ready to work. That would be pretty neat. So, the first step is to get these desk lights controllable from a microcontroller. Tonight I was working with the Arduino.
But here’s the problem, the Arduino only outputs 5 volts and this LED strip is 12 volts. I should point out here, that I am just a hobbyist electronics tinkerer. This is a where a transistor comes in. And here’s what wiring diagram looks like in the real world: In this picture, the LED strip is connected by the thicker black cable snaking off on the bottom and the 12 volt power is connected to the breadboard with the orange and green cable on the right.
MADRIX LED Lighting Control Solutions. Lighting Design and Light Art Magazine.