Pulsing LEDs for effeciency, brighter appearance and multiplexed display
Thermal issues with high power LEDs
Driving 8 or 9 7 segment displays with 8 or 9 io pins (and no extra circuitry)
Driving 12 LEDs with 4 uController pins
Driving 20 LEDs with 4 uController pins
Driving multiple bicolor LEDs in a matrix from and embedded controller
I see surface mount LEDs (Panasonic LNJ208R8ARA in DigiKey) that are 0.8 mm wide, and could end-stack on about 1 mm centers. (.04 inches?) Harold
A discussion on wearable, head mounted LED displays
Area lighting with LED lightbulbs
See also:
wxyz digit ---- ----- 1101 0 0000 1 1011 2 1010 3 0100 4 0110 5 0111 6 1000 7 1111 8 1110 9And the outputs are described by this logic:
a = x | z b = x | ~z c = y | ~w d = z | w e = w f = y g = ~(x | ~y) | z+
PICList post "How to matrix bicolor LEDs?"
Archive:
LCD Front Panel Set: 2x16 LCD w/HD44780 controller, 4 push buttons, 3 LEDs and a 2x12 pin header. +
file: /Techref/leds.htm, 6KB, , updated: 2024/8/8 13:25, local time: 2024/8/14 20:34,
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