likenFRRS232 andCardsizeRS232,andallversionsofRaspberryPi. DLshieldusespins8
forthecorrectoperationofthe device. uFCoderlibraryversion4.2.7andlatersupportDL
ThePi’sserialport(andallotherGPIO’s)workat3.3Vonly.Connectingthemtoa5Vsource will destroy your Pi.
Enable GPIO serial port
Test Linux configuration
$ ls -l /dev/serial*
lrwxrwxrwx 1 root root 5 Nov 21 07:54 /dev/serial0 -> ttyS0 lrwxrwxrwx 1 root root 7 Nov 21 07:54 /dev/serial1 -> ttyAMA0 $ ls – l /dev/ttyS0
$sudo grep uart /boot/cmdline.txt
$ sudo cat /boot/cmdline.txt
There is a simple example code for reader open on the DL-GIT Clone from GIT
$ git clone –recursive
https://www.raspberrypi.org/forums/viewtopic.php?t=151454 https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=144858&p=955297#p955236 https://raspberrypi.stackexchange.com/a/54766
Raspbian OS – download
Test source code:
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