« previous next »
Pages: [1]   Go Down

Author Topic: First Time Using Pull-Up / Pull-Down Resistors, Did I Do It Right?  (Read 280 times)

0 Members and 1 Guest are viewing this topic.

Offline Max HoldcroftTopic starter

  • Contributor
  • Posts: 35
  • Country: au
First Time Using Pull-Up / Pull-Down Resistors, Did I Do It Right?
« on: July 28, 2024, 12:08:14 pm »
Hey all,

Basically the title. I have a push button connected to a pin on a microcontroller that I want to be able to detect the pushing of. I've connected this to a pull-up resistor. I'm running the microcontroller off 2.8v input, and the resistor is 4.7K ohms. This is my first time using these, and I just wanted to check I did it right.

Thanks in advance!

Max :)
Logged
 

Offline ledtester

  • Super Contributor
  • ***
  • Posts: 3183
  • Country: us
Re: First Time Using Pull-Up / Pull-Down Resistors, Did I Do It Right?
« Reply #1 on: July 28, 2024, 12:10:42 pm »
Yes you did it right.
Logged
 

Offline rich t

  • Contributor
  • Posts: 49
  • Country: us
    • rtestardi's github pages site
Re: First Time Using Pull-Up / Pull-Down Resistors, Did I Do It Right?
« Reply #2 on: July 28, 2024, 12:31:14 pm »
Many microcontrollers also have built-in pull-ups you can enable in software.

In general, the one thing you don't want to do is pull up beyond the microcontroller supply voltage.
Logged
 
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee