taskit BLE232 User manual

BLE232
Manual

BLE232
BLE232: Manual
Copyright © 2014 taskit GmbH
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This document was generated on 2014-11-11T10:12:51+01:00.

BLE232
iii
Table of Contents
1. Overview ...................................................................................................................... 1
1.1. BLE232 overview .............................................................................................. 1
2. Features ....................................................................................................................... 2
3. Hardware description ................................................................................................. 3
3.1. Technical characteristics ................................................................................... 3
3.2. Serial interface and power supply schematics .................................................. 3
3.3. BLE232 printed circuit board ........................................................................... 4
4. Register description .................................................................................................... 5
4.1. Peripheral characteristic description ................................................................ 5
4.2. BLE232 configuration via serial port ................................................................ 6
5. Dimensions .................................................................................................................. 8
5.1. BLE232 board and housing dimensions ............................................................ 8
6. Technical data ............................................................................................................. 9
6.1. Technical data ................................................................................................... 9
6.2. Assignment of the serial interface .................................................................... 9

BLE232
iv
List of Figures
3.1. Serial interface and power supply schematics ........................................................ 3
3.2. BLE232 printed circuit board .................................................................................. 4
4.1. BLE232 configuration via serial port ....................................................................... 6
4.2. BLE232 configuration main menu ........................................................................... 6
4.3. BLE232 configuration menu structure ..................................................................... 7
5.1. BLE232 board and housing dimensions ................................................................... 8

BLE232
v
List of Tables
3.1. BLE232 technical characteristics ............................................................................. 3
4.1. BLE232 peripheral characteristic description ......................................................... 5
6.1. BLE232 technical data ............................................................................................. 9
6.2. BLE232 assignment of the serial interface .............................................................. 9

Overview
1
1. Overview
1.1. BLE232 overview
The BLE232 is an interface adapter converting RS232 communication to Bluetooth 4.0.
It has been designed to transfer state messages. It is not especially suitable to transfer
streams or large files, although it works for small files or less volume streams.
It is available as Bluetooth central or peripheral device. It can be used to connect to any
other Bluetooth device such as a smartphone or a Bluetooth sensor that supports Bluetooth
4.0 or two can wirelessly bridge two RS232 ports. It can be used with Windows or Linux
operating systems or directly with microcontrollers.
The BLE232 is available as couple for ready-to-use as BLE232-Central or BLE-Peripheral,
otherwise the modules need to be paired.
The BLE232 has a programming and configuration interface. The configuration can be
done via the Bluetooth characteristics settings of your operating system or directly via the
serial interface (BLE232-peripheral) or only via the serial interface (BLE232-central)
If necessary and desired the module's microcontroller may be programmed by the user
directly.

Features
2
2. Features
• RS232 interface
• Bluetooth 4.0 central or peripheral connectivity
• Powered via serial port or externally
• Configuration via serial port
• Wireless serial bridging
• Connects serial port to smartphones, sensors and other Bluetooth devices that supports
Bluetooth 4.0
• Programming interface

Hardware description
3
3. Hardware description
3.1. Technical characteristics
Device characteristic Value
RS232 lines RX, TX
RS232 baudrates 9600, 19200, 38400, 57600, 115200
RS232 data bits 8
RS232 parity None, Even, Odd
RS232 stop bit 1, 2
RS232 flow control XON/XOFF
RS232 buffer 512 Bytes
Bluetooth mode Central, Peripheral
Bluetooth range 20m - 50m
Bluetooth max transfer rate 8 kB/s
Current consumption 10 mA
Table3.1.BLE232 technical characteristics
3.2. Serial interface and power supply schematics
The BLE232 can be powered internally via the serial line. The signals DCD, DSR, RST,
CTS, DTR and RI can be used as power supply.
The BLE232 can as well be powered by an external power source between 3 to 16 Volt.
Figure3.1.Serial interface and power supply schematics

Hardware description
4
3.3. BLE232 printed circuit board
Figure3.2.BLE232 printed circuit board

Register description
5
4. Register description
4.1. Peripheral characteristic description
Description Data type Units Default Permissions Size
128Bit UUID: 912ffff0—3d4b-11e3-a760-0002a5d5c51b
BLE232 service
UUID
128Bit UUID: 912ffff1—3d4b-11e3-a760-0002a5d5c51b
Serial port
interface
unit8 Write, Notify
128Bit UUID: 912ffff2—3d4b-11e3-a760-0002a5d5c51b
Serial port
Config
unit8 0x04 Read, Write 1 Byte
Baud Bit0-Bit2 0: 9600
1: 19200
2: 38400
3: 57600
4: 115200
Flow Control Bit3 0: OFF
1: ON
Parity Bit4-Bit5 0: NO
1: EVEN
2: ODD
Stop bit Bit6 0: ONE
1: TWO
128Bit UUID: 912ffff3—3d4b-11e3-a760-0002a5d5c51b
Note String Read, Write Max 20 Bytes
128Bit UUID: 912ffff4—3d4b-11e3-a760-0002a5d5c51b
Device name String BLE232 Read, Write Max 20 Bytes
Table4.1.BLE232 peripheral characteristic description

Register description
6
4.2. BLE232 configuration via serial port
Open a serial console program to change the settings of the BLE232 module. After power
up, you have a certain time to go into the setting menu (default: 500ms). At this time
should you go into the setting menu with three plus signs (+++).
Figure4.1.BLE232 configuration via serial port
Press any key to continue. Navigate through the menu using the number keys. In this
menu you can change settings of the serial port, Bluetooth low energy, idle timeout and
debug report. The changes are stored in the device's internal flash memory.
Figure4.2.BLE232 configuration main menu

Register description
7
Here you can see the structure of the menus.
Figure4.3.BLE232 configuration menu structure

Dimensions
8
5. Dimensions
5.1. BLE232 board and housing dimensions
Figure5.1.BLE232 board and housing dimensions

Technical data
9
6. Technical data
6.1. Technical data
Radio transmission
Operation frequency range 2402 - 2480 MHz
Channel spacing 2 MHz
Output power 0 dBm
Modulation GFSK, MSK
Connections
RS232 9-pin D-sub connector, male or female
Antenna Chip-Antenna
Power supply voltage range 3 to 16 Volt
Internal power source Via the serial line
External power source On board
Bluetooth
Version 4, Bluetooth low energy
Protocols Bluetooth low energy protocol stack
Bluetooth profile Generic Access, Service Discovery
Role Peripheral, Central
Dimensions
Circuit board 17x21x1.55mm
Housing ca. 25x41x16mm
Table6.1.BLE232 technical data
6.2. Assignment of the serial interface
Abbreviation Pin Nr. Direction male Direction female
TxD 3 Output Input
RxD 2 Input Output
RTS 7 Power Power
CTS 8 Power Power
DSR 6 Power Power
GND 5 Ground Ground
DCD 1 Power Power
DTR 4 Power Power
RI 9 Power Power
Table6.2.BLE232 assignment of the serial interface