BT 900 User Manual download pdf (Page 14)

BT900 Development Kit

Version 1.0

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/wireless

Laird Technologies

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852-2268-6567 x026

6 BREAKOUT CONNECTOR PINOUTS

6.1 JP2, JP3, JP4, JP5 SIO (Special Input / Output Sockets) Breakout Connectors

Access to all 28 BT900 series module signal pins (SIO’s = signal Input /Output) is available on four connectors JP2, JP3,

JP4, JP5 (2.54 mm pitch 2x5 headers).

Note: The BT900 module signal pins designation SIO (Signal Input /Output).

 The default type is DIO (Digital Input or Output) or UART (on fixed pins)

 The alternate type is either AIN (Analog Input ADC), I2C, SPI, DIO (on fixed pins), PWM or FREQ and WKUP or

Ext Interrupt

 Alternate function is selectable in

smart

BASIC application

 DIO or AIN functionality is selected using the GpioSetFunc() function in

smart

BASIC

 AIN configuration selected using GpioSetFunc() function

 I2C, UART, SPI controlled by xxxOPEN() functions in

smart

BASIC

 SIO_0 to SIO_3 are DIO by default when $autorun$ app runs on power up

These breakout connectors can interface to a wide array of sensors with the BT900 function user configurable by

smart

BASIC application script from the default function (DIO, UART) to alternate functions (AIN (ADC), I2C, SPI, DIO,

PWM or FREQ and WKUP or Ext Interrupt). The BT900 development kit incorporates additional connectors and cables

inside the box, to enable simple, hassle-free testing of the multiple interfaces.

Figure 8: Breakout board connectors

6.1.1 JP2

In the

smart

BASIC application code written to use sensors on the development board (including the Temperature

sensor (U1), Trim Pot(VR9), Buzzer (BZ1), LED1, LED2, Button1 (SW1, and Button2 (SW3), I2C device (U13), SPI device

(U12), the SIO pins direction and type (that these sensors are connected to, SIO_21, SIO_20, SIO_12, SIO_17, SIO_18,

SIO_13, SIO_20, SIO_10, SIO_12, SIO_6 to SIO_9 respectively) must be set in the

smart

BASIC application to override

the defaults in the BT900 firmware.

VCC_IO

SIO_20

RTC_ALARM

GND

SIO_13

nAutoRUNSIO_5

SIO_4 SIO_3

PIN HEADER,2.54mm,2X5P,

JP2

SIO_21

VCC_IO

SIO_13

SIO_12

SIO_10

SIO_8

SIO_11

SIO_7

SIO_9

GND

SIO_6 VCC_IO

PIN HEADER,2.54mm,2X5P,

JP3

nRESET

PIN HEADER,2.54mm,2X5P,

JP4

SIO_17

SIO_18 SIO_19

SIO_20

VCC_IO

GND

VCC_IO

SWDIO

SWDCLK

SIO_15

BT_NC

PIN HEADER,2.54mm,2X5P,

JP5

BT_NC

WLAN_ACTIVE

BT_ACTIVE

VCC_IO

GND

VCC_IO

BT_PRIORITY

BT_NC

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 23 24

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BT 900 User Manual Page 14

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