Porting applications

Existing applications of the OPN-200x, RS-3000 and PX-20 need to be ported to run on the OPN-2500 and OPN-6000.

Below you'll find important information when porting applications for these devices.

New Features in the OPN-6000 / OPN-2500

• BLE OptiConnect service (BLE and USB)
• Bluetooth Device Firmware Update (DFU) (via OptiConnect)
• Bluetooth BLE HID supported (replaces Bluetooth Classic HID)
• Both USB-VCP (default) and USB-CDC driver are supported
• Bluetooth, Batch, and OPN2001 application merged into a single default application
• Added defaults:
  • OPND: OseComm data collector mode (previously Batch application + `C01`)
  • BPC: Switch to USB-CDC (Serial scanner mode)
  • BQZ: Switch to USB-CDC (OPN2001 mode)
  • U2: OPN-2001 default

Removed / Missing Features from the OPN-6000 / OPN-2500

• Bluetooth Classic (HID/SPP) is not supported
• Scanning of Bluetooth address labels to connect has been removed (BLE is always slave)
• Setting a of PIN code is no longer supported (Replaced by Secure Simple Pairing)
• NetO protocol is no longer supported (OseComm or OptiConnect are recommended as alternative)

Changed Default Behaviour (Bluetooth Application)

• Bluetooth BLE HID is set as factory default (replaces Bluetooth Classic HID)
• Discoverability: Device becomes discoverable when pressing the trigger key
• Memorizing (when not connected) is enabled by default
• Memorizing option: 'Trigger to send' is enabled in BLE HID and USB-HID mode
• Keyboard toggle on iOS is now enabled by default
• `Trigger to connect(able)` uses function key, not the trigger key
• Automatically switches into OPN2001 mode after receiving an OPN2001 interrogate command
• Manual reset by pressing both keys for 15 seconds results in white LED. Release the function key to enter bootloader mode (was 20 seconds).
• Device can enter sleep mode in all connection statuses (except when connected to USB), greatly improving battery life when connected to Bluetooth.
• Function key can be used to remove barcodes when connected to OptiConnect (and when memorizing)
• Default Bluetooth local name is OPN6000_(serial) instead of OPN6000_(bt.address) (mobile platforms often hide the Bluetooth address for privacy reasons)

File System / Database Functions

• The Bluetooth, Batch, and OPN2001 application are merged into a single default application and store their data in the same format.
• Switch between all applications without losing data.
• Barcode data is stored in two files:
  • SCANNED.DAT: barcode data
  • SCANNED.IDX: quantity, serial, date, & time
• The batch application generates the CSV file with the configured formatting as soon as the USB-cable is connected instead of while scanning.
• USB-MSD file system is now 'read/write' instead of 'read/only' (file system corruption by Windows is resolved).
• The OPN-6000/OPN-2500 uses ChaN's FatFS filesystem, which uses functions like f_open and f_close (from ff.h and FileSystem.h).
• For backwards compatibility, stdio.h functions like fopen and fclose are supported using a wrapper.
• Low-level I/O functions open, close, read, write are no longer supported.