Cat printer is a conveyable thermal printer sold on AliExpress for around $20.
This repository comprises Python code for talking to the cat printer over Bluetooth Low Vitality (BLE). The code has been reverse engineered from the pleasurable Android app.
# Clone the repository. $ git clone git@github.com:rbaron/catprinter.git $ cd catprinter # Acquire a virtualenv on venv/ and activate it. $ virtualenv --python=python3 venv $ provide venv/bin/activate # Install requirements from requirements.txt. $ pip set up -r requirements.txt
$ python print.py --wait on
usage: print.py [-h] [--devicename] [--log-level {debug,info,warn,error}] [--img-binarization-algo {mean-threshold,floyd-steinberg}] [--show-preview] filename
prints a report for your cat thermal printer
positional arguments:
filename
optional arguments:
-h, --wait on define this wait on message and exit
--devicename Specify the Bluetooth instrument title to see for. Default price is GT01.
--log-level {debug,files,warn,error}
--img-binarization-algo {mean-threshold,floyd-steinberg, halftone}
Which image binarization algorithm to make insist of.
--define-preview If pickle, displays the ultimate image and asks the user for confirmation earlier than printing.% python print.py --define-preview test.png ⏳ Making insist of Floyd-Steinberg dithering to image... ✅ Executed. ℹ️ Displaying preview. 🤔 Stride ahead with print? [Y/n]? ✅ Study image: (42, 384) (h, w) pixels ✅ Generated BLE instructions: 2353 bytes ⏳ Taking a look for a BLE instrument named GT01... ✅ Bought it. Handle: 09480C21-65B5-477B-B475-C797CD0D6B1C: GT01 ⏳ Connecting to 09480C21-65B5-477B-B475-C797CD0D6B1C: GT01... ✅ Linked: Upright; MTU: 104 ⏳ Sending 2353 bytes of files in chunks of 101 bytes... ✅ Executed.
Mean Threshold:
Floyd Steinberg (default)
Halftone dithering
