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, ...
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 ...
CES 2021 hasn’t even officially begun, but we already know one tech trend that will dominate the tech conference. No, it isn’t 5G or self-driving tech but mini-LED displays that will be seen across ...
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