Should the button and switches have pull up resistors?

joeSeggiola / arduino-eurorack-projects

Eurorack modular synthesizer DIY projects with Arduino and C++ libraries.

https://www.tindie.com/stores/joeseggiola/

GNU General Public License v3.0

263 stars 30 forks source link

Should the button and switches have pull up resistors? #4

Closed burdickjp closed 2 years ago

burdickjp commented 2 years ago

I'm looking at the forks schematic and notice the button and switches are left to float when not grounded. Shouldn't those have pull up resistors to +5V?

burdickjp commented 2 years ago

Oh, wow. I guess not! https://www.baldengineer.com/arduino-internal-pull-up-resistor-tutorial.html