Newb: can someone confirm my button circuit?

Forum 2005-2010 (read only) General Frequently-Asked Questions
10

This is very cool. I want to play too! :slight_smile:

I have 2 questions:

  1. Couldn't ChL's original switch circuit have been simplified by using the Arduino's internal pull-up resistors and the digitalWrite(pin, HIGH) trick on an INPUT pin?
  2. Where can you get a solenoid water dropper? Or solenoid toys in general?

Thanks for the post. I would love to keep up with this project.

Mikal