WS2812 Write One Pixel

Set the RGB color of one WS2812 pixel.

Command Packet

  • WS2812 Write One Pixel
  • WS2812 WS2812 Write One Pixel Response
  • WS2812 Write One Pixel
    Description Set the RGB color of one WS2812 pixel.
    Size 13
    Format
    -
    -
    -
    0
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
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    3
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    1
    0
    7
    6
    5
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    3
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    1
    0
    N/A
    SoF : 0xFF
    1
    2
    3
    4
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
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    3
    2
    1
    0
    7
    6
    5
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    3
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    1
    0
    PACKET SIZE
    PACKET NUM
    CMD : 0x0161
    5
    6
    7
    8
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
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    3
    2
    1
    0
    7
    6
    5
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    3
    2
    1
    0
    7
    6
    5
    4
    3
    2
    1
    0
    CMD : 0x0161
    PIXEL INDEX
    RED
    9
    10
    11
    12
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
    4
    3
    2
    1
    0
    GREEN
    BLUE
    REFRESH
    CHECKSUM
    SoF Start of Frame. Always 0xFF.
    PACKET SIZE Packet Size In Bytes
    PACKET NUM The Current Packet Number. This value increments with each new packet.
    CMD WS2812 Write One Pixel Command.
    PIXEL INDEX Index of Pixel To Set (first pixel starts at index 0)
    RED Red value (0-255)
    GREEN Green value (0-255)
    BLUE Blue value (0-255)
    REFRESH 0 = Do Not Refresh LEDs, new color value is stored in memory but no visible change is made | 1 = Refresh LEDs, new value is stored in memory and all LEDs update
    CHECKSUM Checksum. Computed by adding all of the bytes in the packet in U8 form ignoring rollover.

    Response Packet

    WS2812 WS2812 Write One Pixel Response
    Description LINX device's response to WS2812 Write One Pixel command
    Size 6 Bytes
    Format
    -
    -
    0
    1
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
    4
    3
    2
    1
    0
    N/A
    SoF : 0xFF
    PACKET SIZE
    2
    3
    4
    5
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
    4
    3
    2
    1
    0
    7
    6
    5
    4
    3
    2
    1
    0
    PACKET NUM
    STATUS
    CHECKSUM
    SoF Start of Frame. Always 0xFF.
    PACKET SIZE Total packet size in bytes.
    PACKET NUM The packet number of the packet that generated the response.
    STATUS See Return Status section below.
    CHECKSUM Checksum. Computed by adding all of the bytes in the packet in U8 form ignoring rollover.

    Return Status

    No function specific statuses. See return_status for universal return statuses.