Logic-level

2 года назад

This video explores whether a logic level shifter is necessary for WS2812b LED strips. The creator tests the signal strength at various distances from the controller and demonstrates the impact of the logic level shifter on signal quality. They conclude that while it may not be strictly necessary for short distances, it is a good practice to use one for reliable signal transmission, especially when the controller is further away from the LED strip.

7 месяцев назад

This video discusses logic level translation, specifically converting a 5V signal to a 3.3V signal. The presenter explains a common circuit using an FET and two resistors, but highlights that the BS170 FET is not ideal for this application. They then introduce the BSS138 FET as a superior alternative due to its lower threshold voltage and better performance characteristics. The video concludes by showcasing a cheap and readily available level converter board that utilizes the BSS138.