Electronics- LED Strings
Transcript of Electronics- LED Strings
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LED Strings
ElectronicsLED Strings
Terry Sturtevant
Wilfrid Laurier University
January 3, 2019
Terry Sturtevant Electronics LED Strings
![Page 2: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/2.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
LED Strings
These are becoming common in displays.They are composed of multiple LEDs, often RGB, withindividual controls.All of the LEDs in a string are connected in sequence, so thatinstructions cascade through.
Terry Sturtevant Electronics LED Strings
![Page 3: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/3.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
LED Strings
These are becoming common in displays.
They are composed of multiple LEDs, often RGB, withindividual controls.All of the LEDs in a string are connected in sequence, so thatinstructions cascade through.
Terry Sturtevant Electronics LED Strings
![Page 4: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/4.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
LED Strings
These are becoming common in displays.They are composed of multiple LEDs, often RGB, withindividual controls.
All of the LEDs in a string are connected in sequence, so thatinstructions cascade through.
Terry Sturtevant Electronics LED Strings
![Page 5: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/5.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
LED Strings
These are becoming common in displays.They are composed of multiple LEDs, often RGB, withindividual controls.All of the LEDs in a string are connected in sequence, so thatinstructions cascade through.
Terry Sturtevant Electronics LED Strings
![Page 6: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/6.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
WSB2812 LED
Terry Sturtevant Electronics LED Strings
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LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
WSB2812 string
Terry Sturtevant Electronics LED Strings
![Page 8: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/8.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
APA102 LED
Terry Sturtevant Electronics LED Strings
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LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
APA102 string
Terry Sturtevant Electronics LED Strings
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LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
SK9822 LED
Terry Sturtevant Electronics LED Strings
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LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
SK9822 string
Terry Sturtevant Electronics LED Strings
![Page 12: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/12.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
WS2812 Strings
Single wire protocol0-0.4µS HIGH; 0.85µS LOW1-0.8µS HIGH; 0.45µS LOW(Above times ± 0.15µS )24 bit colour; 8 bits for each of GRBData transmission is MSB first in GRB order.RESET-≥ 50µS LOW between data frames
Terry Sturtevant Electronics LED Strings
![Page 13: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/13.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
WS2812 Strings
Single wire protocol
0-0.4µS HIGH; 0.85µS LOW1-0.8µS HIGH; 0.45µS LOW(Above times ± 0.15µS )24 bit colour; 8 bits for each of GRBData transmission is MSB first in GRB order.RESET-≥ 50µS LOW between data frames
Terry Sturtevant Electronics LED Strings
![Page 14: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/14.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
WS2812 Strings
Single wire protocol0-0.4µS HIGH; 0.85µS LOW
1-0.8µS HIGH; 0.45µS LOW(Above times ± 0.15µS )24 bit colour; 8 bits for each of GRBData transmission is MSB first in GRB order.RESET-≥ 50µS LOW between data frames
Terry Sturtevant Electronics LED Strings
![Page 15: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/15.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
WS2812 Strings
Single wire protocol0-0.4µS HIGH; 0.85µS LOW1-0.8µS HIGH; 0.45µS LOW
(Above times ± 0.15µS )24 bit colour; 8 bits for each of GRBData transmission is MSB first in GRB order.RESET-≥ 50µS LOW between data frames
Terry Sturtevant Electronics LED Strings
![Page 16: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/16.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
WS2812 Strings
Single wire protocol0-0.4µS HIGH; 0.85µS LOW1-0.8µS HIGH; 0.45µS LOW(Above times ± 0.15µS )
24 bit colour; 8 bits for each of GRBData transmission is MSB first in GRB order.RESET-≥ 50µS LOW between data frames
Terry Sturtevant Electronics LED Strings
![Page 17: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/17.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
WS2812 Strings
Single wire protocol0-0.4µS HIGH; 0.85µS LOW1-0.8µS HIGH; 0.45µS LOW(Above times ± 0.15µS )24 bit colour; 8 bits for each of GRB
Data transmission is MSB first in GRB order.RESET-≥ 50µS LOW between data frames
Terry Sturtevant Electronics LED Strings
![Page 18: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/18.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
WS2812 Strings
Single wire protocol0-0.4µS HIGH; 0.85µS LOW1-0.8µS HIGH; 0.45µS LOW(Above times ± 0.15µS )24 bit colour; 8 bits for each of GRBData transmission is MSB first in GRB order.
RESET-≥ 50µS LOW between data frames
Terry Sturtevant Electronics LED Strings
![Page 19: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/19.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
WS2812 Strings
Single wire protocol0-0.4µS HIGH; 0.85µS LOW1-0.8µS HIGH; 0.45µS LOW(Above times ± 0.15µS )24 bit colour; 8 bits for each of GRBData transmission is MSB first in GRB order.RESET-≥ 50µS LOW between data frames
Terry Sturtevant Electronics LED Strings
![Page 20: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/20.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
APA102 Strings
Two wire protocolBit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 21: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/21.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
APA102 Strings
Two wire protocol
Bit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 22: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/22.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
APA102 Strings
Two wire protocolBit read on LOW to HIGH clock transition
24 bit colour; 8 bits for each of BGR5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 23: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/23.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
APA102 Strings
Two wire protocolBit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR
5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 24: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/24.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
APA102 Strings
Two wire protocolBit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR5 bit intensity
Data Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 25: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/25.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
APA102 Strings
Two wire protocolBit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB first
One Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 26: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/26.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
APA102 Strings
Two wire protocolBit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LED
Data between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 27: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/27.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
APA102 Strings
Two wire protocolBit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 28: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/28.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
SK9822 Strings
Two wire protocol; similar to APA102Bit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 29: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/29.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
SK9822 Strings
Two wire protocol; similar to APA102
Bit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 30: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/30.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
SK9822 Strings
Two wire protocol; similar to APA102Bit read on LOW to HIGH clock transition
24 bit colour; 8 bits for each of BGR5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 31: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/31.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
SK9822 Strings
Two wire protocol; similar to APA102Bit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR
5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 32: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/32.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
SK9822 Strings
Two wire protocol; similar to APA102Bit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR5 bit intensity
Data Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 33: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/33.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
SK9822 Strings
Two wire protocol; similar to APA102Bit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB first
One Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 34: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/34.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
SK9822 Strings
Two wire protocol; similar to APA102Bit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LED
Data between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings
![Page 35: Electronics- LED Strings](https://reader034.fdocuments.net/reader034/viewer/2022052514/628bcbd6321c1d42de453518/html5/thumbnails/35.jpg)
LED StringsWS2812 StringsAPA102 StringsSK9822 Strings
SK9822 Strings
Two wire protocol; similar to APA102Bit read on LOW to HIGH clock transition24 bit colour; 8 bits for each of BGR5 bit intensityData Frame is 111 followed by 5 bit intensity followed by 24bit colour; 8 bits for each of BGR, MSB firstOne Data Frame per LEDData between Start Frame (0x00) and End Frame (0xFF).
Terry Sturtevant Electronics LED Strings