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 ...