This circuit uses two National Semiconductor LM3914 dot/bar-display-driver ICs to implement a two-digit, 0 to 5V LED voltmeter that mimics a subranging flash ADC. An LED bar graph comprising five LEDs ...

This application required more flexibility than the LM3914 offers, and it uses a circuit based on an Atmel AVR-family ATTiny13 microcontroller, which features 1 kbyte of program memory; a four-channel ...

Way back in 2018, I reviewed BenQ’s ScreenBar Plus. There was a lot to like about this LED workspace light. Unlike a traditional task lamp, the ScreenBar Plus attached to the top of your computer ...

I spend a lot of time at my desk, most of that time staring at a big computer display. And while I recognize lighting is important, I’ve been using a standard LED desk lamp for years, even though it ...

Explore the OLED vs Mini LED debate and discover the best gaming displays of 2026. Learn how next‑gen screen technology ...