xiao-accessory-cobleddriver

To control a COB LED driver board with a Seeed XIAO, wire power and I2C connections, then load provided Arduino or TinyGo examples to manage 7-channel LED output, including 3 high-power and 4 PWM channels.

Active LOW PWM dimming on XIAO boards requires configuring outputs so signals pull LOW to activate and HIGH to deactivate the LED channels, with provided Arduino and TinyGo code snippets demonstrating this inverted logic for reliable dimming.

Yes, TinyGo firmware supports the XIAO COB LED setup, allowing you to manage battery parameters and control I2C Grove expansion modules while operating the 7-channel driver board with active LOW logic.

Pin mapping considerations involve checking the provided pin usage reference to ensure dedicated PWM and high-power channel pins do not overlap with other active XIAO accessories, preventing signal conflicts during multi-channel LED operation.

Your COB LED strip may not turn on due to the active LOW logic requirement, meaning standard HIGH outputs keep LEDs off; you must set the Arduino PWM pins LOW to activate the high-power or PWM channels correctly.

The maximum current output on the XIAO COB LED driver board is 300mA for the 3 high-power channels and 80mA for the 4 PWM channels, enabling compact wireless lighting with COB LED strips.