Using this blue digital piranha LED module is easy. First, connect it to your Arduino board. Remember to set the digital pin to LOW to turn the LED on and HIGH to turn it off. To adjust the brightness, use the PWM output function. When handling the module, be gentle as it's lightweight, only 5g. Make sure to use a power supply with a voltage between +3.3 - 5V. After use, store it in a dry and clean place. If you're not using the digital cable right away, keep it neatly coiled to avoid tangles.