So I keep seeing that people use LEDs and a limiting resistor in series on tx and rx lines to create status leds.
My question is, wouldn't this cause a voltage drop on the expected input voltage into the chip? If I'm feeding a 3v3 logic line and throw a resistor and an LED in front of it, wouldn't the voltage to the chip be too low to drive it high? But I keep seeing this solution everywhere. Am I misunderstanding something? My knowledge of electronics is iffy at best.