Thermal Whatsapp

Just a Raspi connected to Whatsapp and to a thermal printer.

pablogs

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Description

This project uses a Raspberry Pi as a Whatsapp client (using Yowsup library) and thermal printer controller. For this second purpose I have developed a little ESC/POS python library which implements the main commands of this protocol. Nowadays you can text it and the system will print your text next to your Whatsapp nickname, and you also can send any image. It will process the image using python Image library in order to adjust size and apply some 1 bit dithering.

Really fun as cheap dirty photo printer or living room message system.

All code available in GitHub, start nonstop printing!

Details

The Thermal Library implements lots of commands according to the ESC/POS standard:

Start the serial connection with the printer
Format text: emphasis, underline, align, character size, text rotation, inverted colors (white text and black background).
Change between small or standard font size
Resize and print bitmaps given as a arbitrary image format (JPEG,PNG...)

Components

1 × Thermal Printer Second-hand cheap printer
1 × Raspberry Pi

Discussions

rovistacovam wrote 06/20/2024 at 16:18

This project is amazing! Using a Raspberry Pi as a WhatsApp client and thermal printer controller with a custom ESC/POS Python library is ingenious. It’s perfect for a fun, cheap photo printer or a unique living room message system. All the code is available on GitHub for nonstop printing! can I embed this on my wordpress webpage https://jtwhtsap.com/jtwhatsapp-themes/

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whatsappmods23 wrote 01/31/2024 at 19:29

Great project! You did an excellent job. Have you completed this project? By the way, have you heard about GB WhatsApp? https://gbwhatsapk.pk

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reinaldoreaves wrote 11/13/2023 at 08:37

You've made an amazing effort. I have learned a great deal from this venture. I would like to share it with the alone dp for whatsapp crew so they can peruse it and incorporate something new into our continuing endeavors.

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Farrukh-Manzoor wrote 10/10/2023 at 07:03

The Thermal Library offers a range of commands adhering to the ESC/POS standard. It includes serial connection setup, text formatting (emphasis, underline, alignment, size, rotation, colors), and bitmap resizing and printing. Learn more at https://apkwhtgb.com/gb-whatsapp-lite/

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inka43 wrote 12/30/2015 at 18:22

How can I do this project?Where must i put the *.py files?

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blbensusan wrote 12/14/2014 at 15:03

Thanks !

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pablogs wrote 12/10/2014 at 10:17

Hello, you can find it in the Github Repo! It's call LibThermal.py:
https://github.com/pablogs9/ThermalWhats/blob/master/LibThermal.py

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blbensusan wrote 12/10/2014 at 00:32

Hi Pablo ! Could you share the library you developed for the printer ?

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