1.It’s a new digital LED countdown display 12v delay module module. It can be widely used with various control switch places.
3.It’s precision delay, error 0.01% per second, a delay of 0-999 seconds , LED changes per seconds ;
4.LED digital display, normally open trigger delay 12V relay module, triggered by an external signal.
5.Modules are high level trigger, counting time 0-999 seconds.
6.The wide range of products can be used in many fields;
Round and round and round they go! 24 ultra bright smart LED are arranged in a circle with 2.6″ (66mm) outer diameter and 2.1″ (54mm) internal diameter. The rings are ‘chainable’ – connect the output pin of one to the input pin of another. Use only one microcontroller pin to control as many as you can chain together! Each LED is addressable as the driver chip is inside the LED. Each one has ~18mA constant current drive so the color will be very consistent even if the voltage varies, and no external choke resistors are required making the design slim. Power the whole thing with 5VDC and you’re ready to rock.
There is a single data line with a very timing-specific protocol. Since the protocol is very sensitive to timing, it requires a real-time microconroller such as an AVR,for Arduino, PIC, mbed, etc. It cannot be used microcomputer or interpreted microcontroller such as the netduino or Basic Stamp. Our wonderfully-written Neopixel library for Arduino supports these pixels! As it requires hand-tuned assembly it is only for AVR cores but others may have ported this chip driver code so please google around. An 8MHz or faster processor is required.
Comes as a single ring with 24 individually addressable RGB LEDs assembled and tested