baltech-sdk 5.2026.6

SDK to communicate with Baltech RFID readers.

Baltech SDK

Installation

pip install baltech-sdk

Usage

from baltech_sdk import Brp, UsbHid

# Sample code for GetInfo
with Brp(UsbHid()) as brp:
    print(brp.Sys_GetInfo())

# This is a shortcut for:
io = UsbHid()
brp = Brp(io, open=False)
brp.open()
print(brp.Sys_GetInfo())
brp.close()

A complete reference of the supported commands can be found here.

Supported IO protocols

from baltech_sdk import Brp, UsbHid, RS232

# USB HID autodetect connected reader
brp = Brp(UsbHid())

# USB HID by serialnumber
brp = Brp(UsbHid(serialnumber=99999999))

# Serial with (optional) custom settings
brp = Brp(RS232("COM1", baudrate=115200, parity=b"N"))

Reader Update

from baltech_sdk import Brp, UsbHid, ReaderUpdater

with Brp(UsbHid(), open=True) as brp:
    updater = ReaderUpdater.from_path("firmware.bf3")

    # simple upload
    updater.run(brp)

    # upload with progress
    for progress in updater.iter(brp):
        print(f"{progress.progress:.0%} ({progress.transferred_bytes} bytes)")

Access Reader Configuration

from baltech_sdk import Config

cfg_src = {(0x0201, 0x02): b'\x01'}   # instead of a confDict also a brp object 
                                     # can be passed to modify reader's 
                                     # configuration directly
cfg = Config(cfg_src)

# set value
cfg.Device_Boot_StartAutoreadAtPowerup("EnableOnce")

# get value
print(cfg.Device_Boot_StartAutoreadAtPowerup.get())

# delete value
cfg.Device_Boot_StartAutoreadAtPowerup.delete()

Templates and BaltechScripts

from baltech_sdk import Config, Template, BaltechScript, TemplateFilter

confdict = {}
cfg = Config(confdict)

cfg.Scripts_Events_OnAccepted(
    BaltechScript()
        .ToggleInverted("RedLed", RepeatCount=3, Delay=20)
        .Toggle("GreenLed", RepeatCount=1, Delay=20)
        .DefaultAction()
)
cfg.Autoread_Rule_Template(
    0, 
    Template()
        .Static(b"SNR:")
        .Serialnr(TemplateFilter(BinToAscii=True, Unpack=True, BinToBcd=True))
)
print(confdict)

Linux or macOS

To use baltech-sdk under Linux or macOS you need to build your own binary of the BaltechSDK and manually set the path to your binary.

from pathlib import Path
from baltech_sdk import set_brp_lib_path

set_brp_lib_path(Path("path/to/brp_lib"))

Further parameters on connections fors sensible data

Additional Options:

• AES based Encryption can be activated
• Enabled monitoring can be suppressed or extended to plaintext

from baltech_sdk import Brp, UsbHid, SecureChannel

KEY = b'abcdefghijklmnuk'
brp = Brp(UsbHid(), 
          crypto=SecureChannel(security_level=1, key=KEY),  # encrypt communication
          monitor="plaintext"                               # log unencrypted data (if activated by user)
)