Wurth Electronics’  AMB2220 is a compact, high-performance radio data transmission module for wireless, half-duplex communication. The integrated microprocessor controls data communication, handling packet and checksum generation, addressing, monitoring of channel access, and retransmission of lost packets. The host system does not have to perform any radio-specific tasks. The embedded software protocol stack supports star and peer-to-peer networks.

The module can be configured in many ways and supports data transfer with fast channel and address switching. An opportunity to assess the quality of the radio link is also provided by using the measured field strength or RSSI value. The graphical user interface of the freely available Windows application “AMBER-ACC” makes it easy to set operating parameters.

Interfaces

The AMB2220 is connected to a host system via the UART interface with bit rates of up to 115.2 kBaud. Other pins are used for data flow control and to switch between operating modes. Using appropriate firmware, the module is also suitable for autonomously recording digital or analog signals.