Guide To Setup thermal printer from source code
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
sudo apt install -y wiringpi libwiringpi-dev libcups2-dev
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
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
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
- 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/
- 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 to do this job
so that you can run and see all the commands output in a single terminal window
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