Small, energy-saving and easy to integrate wireless module

Amber Wireless offers an extremely compact and energy-saving wireless module - the AMB2621 Bluetooth Smart module. Besides standard control with UART commands, smartphones or other devices can be connected to form a module by initializing with the ‘peripheral only’ operating mode. The module, based on the Bluetooth Smart 4.2 standard, sized just 11mm x 8mm x 1.8mm, is offered with or without integrated antenna. It uses the Nordic chip nRF52832 in this module, i.e. a 32-bit ARM Cortex-M4 CPU and a 512kB flash memory. The firmware supports the ‘peripheral only’ operating mode allowing easy expansion of existing hardware with the BLE interface. In its default state, this mode provides static key pairing and a transparent UART interface. “Our customers can install and use the module with ease, without having to previously configure it and without changing the interface in their application in a big way”, explains Patrick Becker, head of sales at Amber Wireless. “We purposefully introduced the option of operating the wireless module as ‘peripheral’ in the sense of the Bluetooth protocol, as this covers around 90 percent of applications. Devices are equipped with this kind of wireless module so you can connect with them. This means that pairing is initiated from a mobile device, for example to control building technology.”