* '''3V3*''': This is a separate low-noise regulated 3.3V power rail designed for analog circuitry that may be susceptible to noise from the digital components. If you're using any sensitive analog sensors, power them from '''3V3*''' instead of from '''3V3'''. | * '''3V3*''': This is a separate low-noise regulated 3.3V power rail designed for analog circuitry that may be susceptible to noise from the digital components. If you're using any sensitive analog sensors, power them from '''3V3*''' instead of from '''3V3'''. |