Hi, I will be using the MAX232 to interface Visual Studio with the PIC18F4550 using UART. While doing my research I came across this tutorial: http://www.scienceprog.com/alternatives-of-max232-in-low-budget-projects/ He connected 2 LEDs with the RT and TX pins. Can there cause data errors or cause some kind of interference ?? Also, some MAX232 circuits are using 1uF capacitors and others are using 10uF. Does this really make any difference?? Thank in advance.