User Manual

XBee® Wi-Fi RF Modules

Transmitting and Receiving RF Data

The following image shows the API exchanges that take place at the UART or SPI when

sending RF data to another device. The transmit status frame is always sent at the end

of a data transmission unless the frame ID is set to 0 in the transmit request. If the

packet cannot be delivered to the destination, the transmit status frame will indicate

the cause of failure. The received data frame (0x80 or 0xB0) is set by the AP command.

Remote AT commands

The following image shows the API frame exchanges that take place at the UART or SPI

when sending a remote AT command. A remote command response frame is not sent

out the UART or SPI if the remote device does not receive the remote command.