Two main LED dimming techniques can be found in the literature: (i) analogue dimming, and (ii) PWM dimming, which is known by its three main schemes; the enable dimming, series dimming, and parallel ...

The creation of a large-screen, long-range wireless notice board with low operational power is discussed in this study. The suggested configuration employs the LoRa, Arduino Uno, and LoRaWAN protocols ...