User's Manual

BT900-Sx Hardware Integration Guide
Intelligent BTv4.0 Dual Mode Module
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www.lairdtech.com/bluetooth
5 CONN-HIG-BT900
1 O VERVIEW AND K EY F EATURES
BT900 Series modules from Laird Technologies make it easy to add Classic BT and Bluetooth Low
Energy (BLE) functionality to small, portable, power-conscious devices, including those powered
by batteries. The fully approved, programmable module feature Laird’s innovative, event-driven
smartBASIC programming language, which significantly reduces OEM development risk and
speeds time to market.
Based on the Cambridge Silicon Radio (CSR) 8811 silicon and a low power Cortex M3
microcontroller, the BT900 modules provide exceptionally low power consumption with
outstanding wireless range, all within a compact footprint of 19 mm x 12.5 mm. The modules
incorporate all the hardware and firmware required to support development of Dual Mode
applications, including:
 Complete radio hardware
 UART, I2C, SPI, ADC, PCM and GPIO interfaces
 Embedded BTv4.0 software stack
 Classic BT profile - SPP
 GATT Client & Peripheral Modes
What makes the modules truly innovative is smartBASIC, an event-driven programming language
that enables standalone operation of the module. Laird has extended the implementation of
smartBASIC from the popular BL6xx series of single mode BLE modules into the BT900 series. This
allows developers the flexibility of utilising the Core and BLE specific smartBASIC functions from
the BL6xx series to create fully interchangeable BLE applications between these product ranges.
Without the need for any external processor, a simple smartBASIC application encapsulates the
complete end-to-end process of reading, writing, and processing of sensor data and then using
Classic Bluetooth or BLE to transfer it to / from any Bluetooth device. Ultimately smartBASIC
accelerates initial development, creation of prototypes, and mass production by providing you
with your own Bluetooth expert within the module.
In addition to carrying FCC modular, IC, CE and MIC approvals, BT900 modules are fully qualified
as a Bluetooth product, enabling designers to integrate the modules in devices without the need
for further Bluetooth testing. A low-cost developer’s kit including simple software tools simplifies
module integration and guarantees the fastest route to market.
1.1 Features & Benefits 1.2 Application Areas

Bluetooth v4.0
-
Dual
Mode
(Classic Bluetooth and BLE)
 External or Internal Antennas
 smartBASIC programming language
 Full Bluetooth EPL
 Compact Footprint
 Programmable TX power 8dBm to -20dBm
 RX sensitivity: -90dBm
 Ultra low power consumption
 TX: 85 mA peak (at +8dBm)
 Standby Doze: 227 uA (refer to Note4 in Power
Consumption section)
 Deep Sleep: 7uA
 UART, GPIO, ADC, PWM, FREQ output, TIMERS, I2C, and
SPI interfaces

Medical devices
 Wellness devices
 Automotive Diagnostic
Equipment
 Bar Code Scanners
 Industrial Cable
Replacement
 Home automation