pos-devices
On windows if HID devices claim by the OS, use (https://sourceforge.net/projects/libwdi/files/zadig/)[Zadig] to install the WinUSB driver for your USB device.
to install
npm i https://gitlab.com/wawasan/pos-devices
API
const connector = const dev = 'COM6' deviceType: 'serial'
connector(adapter, options)
top level constructor, to initialize new object where ADAPTER is the specific address of a device i.e:
- serial:
COM
- usb:
[VID, PID]
- bluetooth:
02:18:9D:4A:ED:E7
options.deviceType
String, the type of device serial
, usb
or bluetooth
options.HID
Boolean, default is false
, if the original device is a HID device but replace with another driver i.e zadig WinUSB
and need to map
the input/output buffer to HID key code format (on WINDOWS)
options.filterHID
Array, filter HID keys
options.transformHID
Function, transform the HID codes i.e HID_KEYBOARD_SC_MEDIA_CALCULATOR -> MEDIA
`0x`
dev
represent the initalize constructor object
dev.list()
Promise, return the list of devices i.e
dev
dev.formatESCPOS(data)
return a Buffer in ESCPOS format i.e
let data = font: 'a' align : 'ct' style : 'bu' size: 1 1 text: 'The quick brown fox jumps over the lazy dog' text: '敏捷的棕色狐狸跳过懒狗' barcode: '1234567' 'EAN8' let buffer = dev // send the data to the devicedev
dev.sendInput(inputBuffer, callback, options)
send inputBuffer
to device
dev.outputRead(callback, options)
read the output buffer from device i.e
let dev = let endpoint = dev
data : can be send as a series of event like a stream