Hello,
does the PN532 RFID shield, run at 3.3V, or does it have a built in level shifter? Using with a UNO.
I ask since the breakout runs at 3.3v.
thank you!
PN532 Shield 3.3v or 5v?
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: PN532 Shield 3.3v or 5v?
The shield runs on 5V, and has a 3.3V regulator and built-in level shifters on the input lines
- Anthrum
- Posts: 26
- Joined: Fri Aug 15, 2014 8:45 am
Re: PN532 Shield 3.3v or 5v?
ah, I understand, thank you!
Please be positive and constructive with your questions and comments.