Long Range Bluetooth Smart Ready Module

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BT121 is a Bluetooth® Smart Ready module targeted for applications that require both Bluetooth Smart and Classic connectivity. It can connect to legacy devices that only support Bluetooth SPP or Apple iAP2 profiles as well to devices that support Bluetooth Smart. BT121 integrates a high performance Bluetooth radio, a low-power ARM® Cortex® microcontroller and a Bluegiga Bluetooth Smart Ready stack software marking it extremely easy-to-use as no RF or Bluetooth software development is needed. BT121 can be used as a modem together with a separate host MCU, but applications can also be embedded into the built-in ARM Cortex MCU with the Bluegiga BGScript™ scripting language.

Symmetry Electronics is an authorized Silicon Labs distributor.


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Bluetooth 4.2 Smart Ready compliant
Master and slave modes
Up to 6 x BR/EDR connections
Up to 7 x BLE connections
1 x BR/EDR + 7 x BLE connections simultaneously
Scatternet: 3 simultaneous piconets, 1 as master + 2 as slaves

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Long Range Bluetooth Smart Ready Module