@anwar1909/react-native-bluetooth-escpos-printer

Fork of react-native-bluetooth-escpos-printer (0.0.5) with JackPOS production fixes and performance optimizations for Android BLE thermal printers (EP8082, VSC, TSPL).

Install

npm install @anwar1909/react-native-bluetooth-escpos-printer
# or
yarn add @anwar1909/react-native-bluetooth-escpos-printer

Rebuild the native app after install (yarn android / pod install).

API

Same as the upstream package:

import {
  BluetoothManager,
  BluetoothEscposPrinter,
  BluetoothTscPrinter,
} from '@anwar1909/react-native-bluetooth-escpos-printer';

JackPOS changes (0.1.0+)

BLE / ESC/POS image print (Android)

• writeBulk() — large ESC/POS payloads skip per-write settle sleep (avoids double-delay with chunking).
• Chunked transfer — 1024 bytes/chunk, 8 ms inter-chunk delay (was 240 B / 120 ms upstream).
• printRawBytes — uses the same fast chunked path.
• PrintPicture.eachLinePixToCmdBatched — 32 rows per GS v 0 stripe (faster BLE + faster physical print vs 1 row/command).

React Native 0.76–0.78 Android

• namespace, compileSdk 35, androidx.core, modern Gradle safeExtGet defaults.
• Bluetooth permissions / connect flow patches in RNBluetoothManagerModule.
• TSPL label print improvements for large bitmaps.

New native methods (JackPOS)

• BluetoothEscposPrinter.printImageBase64(base64, options) — width, left, feedAfter, skipInit, trimWhite, cropTopPx.
• BluetoothEscposPrinter.printRawBytes(base64) — raw ESC/POS bytes.

Credits

Original library by janus j k lu (MIT). JackPOS fork maintained by anwar1909.

License

MIT — see LICENSE.