Shows Shodan2000 on a Raspberry Pi
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Password-Printer

printer.sh This script prints out a random passoword on a thermal printer upon button press.

Device

We use a Card Start 8010 thermal printer. With the USB adaptor, you can simply send text via echo to the /dev/usb/lp1 device. It is printed if the line is full (24 characters) or when a "\r" sequence is sent.

Commands

Wanted Output:

+---------------------+
| Dein Passwort:      |
| 0123456789          |
+---------------------+

Test Output:

echo -e "\r\r+---------------------+\r| Dein Passwort:      |\r| 0123456789          |\r+---------------------+\r\r\r" > /dev/usb/lp1

Final command:

#!/bin/sh

echo  "\r\r+----------------------+| Dein Passwort lautet || " > /dev/usb/lp1
pwgen -N1 10 > /dev/usb/lp1
echo "           |+----------------------+\r\r" > /dev/usb/lp1