How to trigger the printer to open the cash drawer ?

[tr3v3r]

@MinaZakaria Hi! What do you mean by Cash Drawer?

[MinaZakaria]

The Cash Drawer is the place that contains the money. So times we need to open the drawer when printing the receipt to add more money. There is a cable that connects from the Epson printer to the drawer. and then it wait for a command from the printer to open the cash drawer

[tr3v3r]

@MinaZakaria Thanks for the explanation! Actually, to provide this functionality we need to add the corresponding method addPulse to handleCommand method for iOS and Android. Unfortunately, at the time I don't have the capacity to add it. But if you have, I'd really appreciate it )

https://github.com/tr3v3r/react-native-esc-pos-printer/blob/ba2ed89970993471d4538f1be6146be7a89ff671/ios/EscPosPrinter.m#L481

https://github.com/tr3v3r/react-native-esc-pos-printer/blob/ba2ed89970993471d4538f1be6146be7a89ff671/android/src/main/java/com/reactnativeescposprinter/EscPosPrinterModule.java#L487

Than we can just use it like:

 printing()
 .addText('text')
 .addImage('logo.png`)
 .addPulse( // args )
 .addCut()

Here the method specification:

[ahaikal]

@MinaZakaria a quick way to do this

import Encoder from 'esc-pos-encoder';
       ....
        const encoder = new Encoder();
        const printing = new EscPosPrinter.printing();
        encoder.pulse(0, 100, 100);
        const status = await printing.data(encoder.encode()).send();

This works for me

[tr3v3r]

Version 1.5.0 adds this functionality