ER: Configure LED port: EXP Bus Protocol Reference¶

This command is used to configure one of the LED output ports of the expansion board.

Command syntax¶

ER:<port>,<type>,<start>,<count><CR>

<port>¶

The number of the port you want to configure, in hex. Valid ports numbers vary by board type, but there are a maximum of ports per breakout on the board.

<type>¶

Sets the specific type of LEDs in the block. Most serial LEDs can be classified into broad categories by the data protocol used and number of channels. * 0 WS2812 compatible RGB LEDs * 1 SK6812 compatible RGBW LEDs * 2 APA102 compatible RGB LEDs

<start>¶

Sets the index of the first LED allocated to the port. Valid LED indices are 0-127 (0-7F hex).

<count>¶

Sets the number of LEDs allocated to the port. Valid LED counts are 0-36 (0-24 hex).

Returns¶

ER:P means the port configuration was successful.
ER:F means the port configuration failed.

Examples¶

Define port 2 to include 30 RGBW WS2812 compatible LEDs, starting at index 64:

ER:2,1,40,1E<CR>

Next Up: L1: Enable/Disable Individual LED

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