Controlling LED brightness without using PWM directly

Yeah, just go to Mouser or RS-Components website (or whatever supplier you like) and search for "led driver IC". Hundreds of components will pop up; look for ones that support analog dimming. It comes in different names and approaches; some IC's take 1 ~ 10V, others 0.3-2.5, yet others 0-1.25V, etc. etc.

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