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ptouch_bot's Introduction

P-Touch Telegram bot

I wanted to make my Brother 2430PC accessible to all house users without using a computer.
I used a Raspberry Pi Zero W with Raspberry Pi OS Lite for this job.

Dependencies

Needed packages that were missing from the Pi Zero:

libusb-1.0-0-dev libgd-dev autopoint autoconf git gawk

Printing from Linux

We need to build this utility in oder to print from a linux machine

cd ~
git clone https://mockmoon-cybernetics.ch/cgi/cgit/linux/ptouch-print.git/
cd ptouch-print

Before building, we should fix an error in one of the source files.
src/libptouch.c line 180 change from %ld to %u

Build and Install

./autogen.sh
./configure --prefix=/usr
make
sudo make install

Finally make the USB bus accessible without using sudo

sudo chmod -R 777 /dev/bus/usb

Telegram Bot

I used python-telegram-bot for this job.

cd ~
sudo apt-get install python3-pip
git clone https://github.com/python-telegram-bot/python-telegram-bot.git
cd python-telegram-bot
git submodule update --init --recursive
python3 setup.py install

Add your bot token and allowed user IDs to print_consts.py

Running the Bot

python3 ptouch_bot.py

Startup Service

Create a service file under /etc/systemd/system/ptouch_bot.service:

[Unit]
Description=P-Touch Bot
After=network-online.target
Wants=network-online.target

[Service]
Restart=always
RestartSec=3
ExecStartPre=sudo chmod -R 777 /dev/bus/usb/
ExecStart=python3 /home/pi/ptouch_bot/ptouch_bot.py

[Install]
WantedBy=multi-user.target

Enable the service

sudo systemctl enable ptouch_bot.service

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