DevTerm/Code/thermal_printer

DevTerm Thermal printer

Console commands example

echo "Hello DevTerm" > /tmp/DEVTERM_PRINTER_IN

echo -e "Hello DevTerm\n\n\n\n\n\n" > /tmp/DEVTERM_PRINTER_IN

cat file.txt > /tmp/DEVTERM_PRINTER_IN

ncal -hb | tee > /tmp/DEVTERM_PRINTER_IN

Eos/Pos commands example

ESC ! n

set printer font index,n:0-4
echo -en "\x1b\x21\x0" > /tmp/DEVTERM_PRINTER_IN
echo -en "\x1b\x21\x1" > /tmp/DEVTERM_PRINTER_IN
echo -en "\x1b\x21\x2" > /tmp/DEVTERM_PRINTER_IN
echo -en "\x1b\x21\x3" > /tmp/DEVTERM_PRINTER_IN
echo -en "\x1b\x21\x4" > /tmp/DEVTERM_PRINTER_IN

81addc7f4b/Code/thermal_printer/devterm_thermal_printer.c (L381)

DC2 # n

n:0-F, set printer printing density

echo -en "\x12\x23\x8" > /tmp/DEVTERM_PRINTER_IN

DC2 T

print the test page
echo -en "\x12\x54" > /tmp/DEVTERM_PRINTER_IN

UNICODE

edit /usr/local/etc/devterm-printer ,pointer to an existed ttf file,eg: TTF=/usr/share/fonts/opentype/noto/NotoSansCJK-Regular.ttc

then restart devterm-printer.service with

sudo systemctl restart devterm-printer

devterm-printer daemon will auto detect if the ttf file existed,if exists, devterm-printer will use the ttf as default font

use above set printer font index,n:0-4 command to set font size,

1. 0 = 12x12
2. 1 = 14x14
3. 2 = 16x16
4. 3 = 18x18
5. 4 = 20x20

then

echo "鉴于对人类家庭所有成员的固有尊严及其平等的和不移的权利的承认,乃是世界自由、正义与和平的基础" > /tmp/DEVTERM_PRINTER_IN

to print unicode characters

ESC V n rotation command,unicode mode only

echo -en "\x1b\x56\x0" >/tmp/DEVTERM_PRINTER_IN disable rotation

echo -en "\x1b\x56\x1" >/tmp/DEVTERM_PRINTER_IN 90 degree
echo -en "\x1b\x56\x2" >/tmp/DEVTERM_PRINTER_IN 180 degree
echo -en "\x1b\x56\x3" >/tmp/DEVTERM_PRINTER_IN 270 degree

How to run it from source

• make
• sudo systemctl stop devterm-printer
• sudo cp -rf devterm_thermal_printer.elf /usr/local/bin
• sudo systemctl start devterm-printer