BL652 Development Kit
User Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
3
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C
ONTENTS
1
Overview ..............................................................................................................................................................5
2
Laird BL652 Development Kit Part Numbers .......................................................................................................5
3
Package Contents .................................................................................................................................................5
4
BL652 Development Kit – Main Development Board ..........................................................................................6
4.1
Key Features ............................................................................................................................................6
5
Understanding the Development Board ..............................................................................................................8
5.1
BL652 Default Configuration and Jumper Settings .............................................................................. 10
6
Functional Blocks .............................................................................................................................................. 11
6.1
Power Supply ....................................................................................................................................... 12
6.1.1
Additional Power Option (for BL652 only) – Coin Cell ......................................................... 13
6.2
Reset Button ........................................................................................................................................ 14
6.3
SWD (JTAG) Interface ........................................................................................................................... 14
6.4
Four-wire UART Serial Interface .......................................................................................................... 15
6.5
UART Mapping ..................................................................................................................................... 16
6.5.1
UART Interface Driven by USB ............................................................................................. 16
6.5.2
UART Interface Driven by External Source .......................................................................... 16
6.6
nAutoRUN Pin and Operating Modes .................................................................................................. 18
6.7
vSP (Virtual Serial Port) Modes and OTA (Over the Air) smart BASIC Application Download ............. 19
7
Software ............................................................................................................................................................ 20
8
Breakout Connector Pinouts ............................................................................................................................. 21
8.1
J40, J44, J29, J41, J1, J5 SIO (Special Input/Output Sockets) Breakout Connectors ............................ 21
8.2
Arduino Connector for Plugging in an Arduino Shields ....................................................................... 24
8.2.1
Analog Input Buffer and Attenuator Circuit (U3) ................................................................ 26
8.3
Additional Peripherals/Sensors ........................................................................................................... 27
8.3.1
Temperature Sensor ............................................................................................................ 27
8.3.2
I2C Sensor (RTC Chip) .......................................................................................................... 28
8.3.3
SPI Device EEPROM ............................................................................................................. 29
8.3.4
Push Button and LED Connected to BL652 .......................................................................... 30
8.3.5
NFC External Antenna Connector and NFC Antenna RF Matching Circuit .......................... 31
8.3.6
Optional External Serial SPI Flash IC .................................................................................... 32
8.3.7
Optional 32.76 kHz Crystal .................................................................................................. 33
9
Other Features .................................................................................................................................................. 34
