The circuit in Figure 1 uses only five I/O lines to drive a dot- or bar-graph display of 20 LEDs. Although this version of the design uses a small and inexpensive one-time-programmable microprocessor, ...
In an era where screens dominate our work, entertainment, gaming, and even eye health, choosing the right display can make all the difference. While traditional LED displays have long been ...
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 ...
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 ...
If you have a MacBook or MacBook Pro this is a truly great way to turn your laptop into a desktop computer, it’s certainly more focused than any other display, and the built-in power and USB ...
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