qqp question1: How do I convert a 5 V DC to 3.3 V DC using resistors (voltage divider)? I have a couple of 220 Ω, 560 Ω, 2.2 kΩ and 10 kΩ resistors. question2: What is the minimum setup to operate the VIPER12 DIP LED Driver? Which voltage regulator should I use to get 350mA current at 3.2 V? 7805? Or LM317?