I'm trying to use information from LadyAda's Ice Tube clock - http://www.ladyada.net/make/icetube/design.html - to simply drive a IV-18 VFD (not using it as a clock). I would like to use a stand alone Arduino with a 16Mhz crystal.
I had a question regarding her design and driving the display using an Arduino:
I'm not actually building a clock, BUT I want to use ladyada's boost converter circuit (see link above). Can I use a 16MHz external crystal for the Arduino? Or will this throw off the Arduino PWM frequency?
- What a standalone Arduino's default PWM frequency with a 16Mhz crystal? This site says 488Hz but this page says the default PWM frequency on the Arduino is 31.25KHz.