On Wed, May 24, 2017 at 1:42 PM, william degnan via vcf-midatlantic < vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:
There is a "thing" that one can use to regulate LED voltages in a string, with a pretty large voltage/resistance variation. It's better than having a resistor at each light. What is this thing called?
Did you really mean voltages or the brightness levels, Not sure which kind of LEDs you were talking about In case of the RGB Leds, there's the PCA9685 I2C 12bit PWM 16channel controller, it would generate the RGB voltage levels to give you thousands of colors And this can be ganged together over the I2C serial bus to get even more channels, 100's of them But the newer neopixel RGB strings even have this chip built right inside each LED to save even more space and wiring Dan -- _ ____ / \__/ Scotty, We Need More Power !! \_/ _\__ Aye, Cap'n, but we've only got 80 col's !!