# Prepare Before everything We assume that you have a Devterm with stock os running and a little bit of Linux compiling experience know how to install packages by package manager like apt ## WiringPi ### CM3 or CM4 ``` sudo apt install -y wiringpi libwiringpi-dev libcups2-dev ``` ### A06 A04 ``` git clone https://github.com/clockworkpi/DevTerm.git cd DevTerm/Code/devterm_wiringpi_cpi/ sudo ./build #chose 0 or 1 depend which board you have ``` ### R01 ``` git clone https://github.com/clockworkpi/DevTerm.git wget https://github.com/WiringPi/WiringPi/archive/refs/tags/final_official_2.50.tar.gz tar zxvf final_official_2.50.tar.gz cd WiringPi-final_official_2.50/ cp ../DevTerm/Code/patch/d1/wiringCP0329.patch . git apply wiringCP0329.patch sudo ./build #Choice: 2 ``` # Compile thermal printer driver code ``` git clone https://github.com/clockworkpi/DevTerm.git cd DevTerm/Code/thermal_printer make sudo systemctl stop devterm-printer sudo cp -rf devterm_thermal_printer.elf /usr/local/bin sudo systemctl start devterm-printer ``` ## Debug or run it from manually 1. setup socat socket for data receving for thermal printer ``` sudo systemctl stop devterm-printer #stop service sudo systemctl stop devterm-socat #stop service sudo socat -d -d pty,link=/tmp/DEVTERM_PRINTER_OUT,raw,echo=0 pty,link=/tmp/DEVTERM_PRINTER_IN,raw,echo=0 sudo ./usr/local/bin/devterm_socat.sh # <- this .sh file is in DevTerm/Code/thermal_printer/usr/local/bin/ ``` 1. run devterm_thermal_printer.elf ``` sudo ./devterm_thermal_printer.elf ``` now you can test the printer by cat or echo something into `/tmp/DEVTERM_PRINTER_IN` eg: `echo "hello world\n\n\n\n\n\n\n\n\n\n" > /tmp/DEVTERM_PRINTER_IN we recommend use [tmux](https://github.com/tmux/tmux/wiki) to do this job so that you can run and see all the commands output in a single terminal window ## For CUPS just install `devterm-thermal-printer-cups` ``` sudo apt install devterm-thermal-printer-cups``` this package will add a CUPS serial printer adapter,a CUPS filter for the DevTerm's thermal printer and will let other programs to print content through image printing using DevTerm's thermal printer source code is in https://github.com/clockworkpi/DevTerm/tree/main/Code/devterm_thermal_printer_cups all devterm related deb packages available at https://github.com/clockworkpi/apt