QR Printing Service

Target features

Connects with Dymo LabelWriter ~~550~~ 400 (libusb)
Converts plaintext to QR code bitmap (libqrencode)
Acts as a simple TCP server listening on the loopback interface & providing easy way to print a label using RID (reagent identifier), as well as enabling the client to be notified when the printer job state changes. (plibsys socket API)
Properly handles double labels

The project is currently aimed at handling the Dymo 11353 labels only (Label size for eppendorfs - 25 x 13 mm)

Compilation

Compile on the target system

Create a build directory
cd into the build directory
Run cmake -DWITHOUT_PNG=ON -DCMAKE_USE_PTHREADS_INIT=OFF -DCMAKE_THREAD_PREFER_PTHREAD=OFF ..
Run cmake --build .

Cross-compile for Windows

Create a build directory
cd into the build directory
Run cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/windows-toolchain.cmake -DPLIBSYS_BUILD_STATIC=ON -DWITHOUT_PNG=ON -DCMAKE_USE_PTHREADS_INIT=OFF -DCMAKE_THREAD_PREFER_PTHREAD=OFF -S ..
Run cmake --build .

Enable libusb-cmake debug logging

You can do it by setting option -DLIBUSB_ENABLE_DEBUG_LOGGING=ON with cmake