BTM420

Bluetooth® HCI Module

Features
Bluetooth v2.1+EDR
Adaptive frequency hopping
Secure Simple Pairing support
External or internal antenna options
Bluetooth Controller Subsystem Qualified
Compact size
Class 2 output – 4dBm
Low power operation
UART interface
PCM and SCO for external codec
GPIO lines under AT control
Wi-Fi co-existence

The BTM420 and BTM 421 Bluetooth® modules from Laird Technologies have been designed to meet the needs of developers who wish to add robust, short range Bluetooth data connectivity to their products.  They are based on the market leading Cambridge Silicon Radio BC04 chipset, providing exceptionally low power consumption with outstanding range.  They support the latest Bluetooth Version 2.1 Specification, providing the important advantage of Secure Simple Pairing, which improves security and enhances the ease of use for end customers.

With physical sizes as small as 12.5 x 18mm and best of class, low-power operation, these modules are the ideal choice for applications where designers need both performance and minimum size.  For maximum flexibility in systems integration, the modules are designed to support a separate power supply for I/O.

To aid product development and integration, Laird Technologies has integrated a complete Bluetooth protocol stack within the modules, including support for the Bluetooth Serial Port Profile.  The modules are fully qualified as Bluetooth End Products, allowing designers to integrate them within their own products with no further Bluetooth Qualification.  They can then list and promote their products on the Bluetooth website free of charge.

A comprehensive AT command interface is included, which simplifies firmware integration’  Combined with a low cost developers kit, this ensures that the choice of Laird Technologies Bluetooth modules guarantees the fastest route to market.