Integrating Bonding Function in AMB2621 Bluetooth Smart Module

AmbeR wireless GmbH expands the functionality of its AMB2621 Bluetooth Smart Module: The packet size for payload data transmission is raised from 128 to 243 bytes. Additionally, the extremely compact and energy-saving wireless module now has a bonding option. In use, this allows the pairing key to be stored securely in the module and a new connection with the device equipped with AMB2621 can be established without re-authentication. 

AMB2621 is a 2.4 GHz wireless module compliant with the Bluetooth Smart 4.2 standard and is available with or without an integrated antenna. As a special feature for the industrial wireless module domain, AMB2621 also offers the ‘peripheral only’ operating mode. This even allows pairing to be initiated from a smartphone, as the device in which the AMBER wireless module is integrated provides a BLE (Bluetooth Low Energy) connection. The manufacturer has now advanced a method from consumer electronics, whereby the wireless module stores the key of the remote terminal and renders pairing permanent. This ‘bonding’ means the user only needs to enter a key with the first connection.

Thanks to the ‘peripheral only’ operating mode, the AMB2621 Bluetooth Smart module is especially energy-saving. The UART interface (Universal Asynchronous Receiver Transmitter) is only active once a wireless connection is established. 

About AMBER Wireless

AMBER wireless GmbH, established in 1998, is a German electronics company. It specializes in the design and manufacturing of wireless connectivity solutions including compact short-range RF modules for rapid implementation of cable-free data links as well as home automation and automatic meter reading solutions. They currently are one of the leading suppliers for low power ISM/SRD products in Europe. AMBER wireless RF products have been used in a variety of cable-free applications for instance in sensor networks, Internet of Things, Smart Home (Connected Home), logistics, automated meter reading (metering), environmental monitoring, access control, healthcare as well as home/building automation.