1.4 KiB
1.4 KiB
WS2812 Module
ws2812.write()
Send GRB data in 8 bits to a WS2812 chain.
Syntax
ws2812.writegrb(pin, string)
Parameters
pinany GPIO pin 0, 1, 2, ...stringpayload to be sent to one or more WS2812 LEDs. It should be composed from a GRB triplet per element.G1the first pixel's Green channel (0-255)R1the first pixel's Red channel (0-255)B1the first pixel's Blue channel (0-255)
... You can connect a lot of WS2812 ...G2,R2,B2are the next WS2812's Green, Red, and Blue channel parameters
Returns
nil
g = 0
r = 255
b = 0
leds_grb = string.char(g,r,b, g,r,b)
ws2812.write(2, leds_grb) -- turn two WS2812Bs to red, connected to pin 2
ws2812.writergb()
Send GRB data in 8bits to a WS2812 chain.
Syntax
ws2812.writergb(pin, string)
Parameters
pinany GPIO pin 0, 1, 2, ...stringpayload to be sent to one or more WS2812 LEDs. It should be composed from an RGB triplet per element.R1the first pixel's Red channel (0-255)G1the first pixel's Green channel (0-255)B1the first pixel's Blue channel (0-255)
... You can connect a lot of WS2812 ...R2,G2,B2are the next WS2812's Red, Green, and Blue channel parameters
Returns
nil
Example
leds_rgb = string.char(255,0,0, 0,255,0, 0,0,255)
ws2812.writergb(2, leds_rgb) -- turn three WS2812Bs to red, green, and blue respectively