WS2811 NeoPixel LED Driver Chip - 10 Pack
Manufactured By:adafruit industries
Part Number:1378
Make your own smart LEDs with the same chip that is used in our NeoPixel strip and pixels. This tiny SOIC-8 is fairly easy to solder and can drive a single common-anode RGB LED or three single-color LEDs of your choice. The outputs are each ~18mA constant current so the color will be very consistent even if the voltage varies, and no choke resistors are required making your design minimal.
The pixels are 'chainable' by connecting the output of one chip into the input of another - see the datasheet for diagrams and pinouts. To keep the chip small, 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, Arduino, PIC, mbed, etc. It cannot be used with a Linux-based microcomputer or interpreted microcontroller such as the netduino or Basic Stamp. There are two speeds supported by the chip, one 400KHz and one 800KHz. Our wonderfully-written Neopixel library for Arduino supports both! 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. Using the slow timing rate, 4MHz or faster processor is required.
Applications:
The pixels are 'chainable' by connecting the output of one chip into the input of another - see the datasheet for diagrams and pinouts. To keep the chip small, 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, Arduino, PIC, mbed, etc. It cannot be used with a Linux-based microcomputer or interpreted microcontroller such as the netduino or Basic Stamp. There are two speeds supported by the chip, one 400KHz and one 800KHz. Our wonderfully-written Neopixel library for Arduino supports both! 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. Using the slow timing rate, 4MHz or faster processor is required.
Applications:
- LED decorative lighting.
- Indoor/outdoor LED video or irregular screen.
Features
- Output port compression 12V.
- Built in stabilivolt, Only add a resistance to IC VDD feet when under 24V power supply.
- Gray level 256 can be adjusted and scan frequency not less than 400Hz/s.
- Built in signal reshaping circuit,after wave reshaping to the next driver, ensure wave-form distortion not accumulate.
- Built-in electric reset circuit and power lost reset circuit.
- Cascading port transmission signal by single line.
- Any two point the distance more than 10m transmission signal without any increasecircuit.
- When the refresh rate is 30fps, low speedmodelc ascade number are not less than 512 points, high speed mode not less than1024 points.
- Send data at speeds of up to 400 Kbps and 800 Kbps two patterns.
Ships With
- NeoPixel LED Driver Chip - 10 Pack