I am looking to connect a card reader to the pi and when the card is read it will start a 5 minute timer ( this card will be the master card). Once that card has been swiped if another card is swiped in the 5 minutes it will turn on a LED and send an email. If the card is swiped 5 minutes after the first 5 minutes ends it will Light a separate LED and send a different email.
I am quite new to C code and have never used RX and TX before, I am looking to simulate an input (the card) using my pc until I can get the needed equipment. Any help would be great as I am a bit lost trying to find the code.
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ccurran689
- Posts: 13
- Joined: Sat Sep 26, 2015 9:55 am
Re: Using the TX and RX in C code
With TX and RX I assume that you are refering to the UART pins on the GPIO of the Raspberry Pi.
You should start by reading this: http://elinux.org/RPi_Serial_Connection ... peripheral
A lot of other guides can be found by googling "raspberry pi using ttyama0": https://www.google.no/webhp?#q=raspberr ... %20ttyama0
You should start by reading this: http://elinux.org/RPi_Serial_Connection ... peripheral
A lot of other guides can be found by googling "raspberry pi using ttyama0": https://www.google.no/webhp?#q=raspberr ... %20ttyama0