Hi, hope you are all well.
Arduino Uno
I'm currently working on a project which will involve entering a sequence on a 12V keypad. The keypad and its documentation can be found here: https://www.jaycar.com.au/digital-keypad-with-rfid-access-control/p/LA5353
They keypad wants 9-18V AC/12~24V DC. I'll be using the keypad to output 26 bit Wiegand to the Arduino. I'm just wondering the best way to power this system. The schematics included with the keypad show that the keypad and the controller (Arduino) should be sharing a power source. See image attached.
How can I power the 12-24V keypad through the arduino without frying it?
All help is appreciated.
Thank you.