# NeoPixel

Implements the NeoPixel protocol for driving addressable LED strips.
The strip length is configured in the unit settings.

Five color data encodings are available for user convenience.

## Commands

### CLEAR (0x00)
Set all pixels to black. This is also automatically executed on start-up to clear the strip.

### LOAD (0x01)
Load packed RGB data to the strip.

*Payload:*

- a byte array `(R,G,B)` x length

### LOAD_U32_ZRGB (0x08)
Load 32-bit `0x00RRGGBB` words encoded in big-endian as `(0,R,G,B)`.

*Payload:*

- a byte array `(0,R,G,B)` x length

### LOAD_U32_ZBGR (0x09)
Load 32-bit `0x00BBGGRR` words encoded in big-endian as `(0,B,G,R)`.

*Payload:*

- a byte array `(0,B,G,R)` x length

### LOAD_U32_RGBZ (0x0A)
Load 32-bit `0x00BBGGRR` words encoded in little-endian as `(R,G,B,0)`.

*Payload:*

- a byte array `(R,G,B,0)` x length

### LOAD_U32_BGRZ (0x09)
Load 32-bit `0x00RRGGBB` words encoded in little-endian as `(B,G,R,0)`.

*Payload:*

- a byte array `(B,G,R,0)` x length

### GET_LEN (0x04)
Read the neopixel strip length as configured in the settings.

*Response:*

- u16 - number of pixels

## Events

*No events defined for this unit type.*