API Request characteristic

UUID: 7dddca00-3e05-4651-9254-44074792c590

Permissions: Writeable

XBee API frames are broken into chunks and transmitted sequentially to the request characteristic using write operations. Valid frames will then be processed and the result will be returned through indications on the response characteristic.

API frames do not need to be written completely in a single write operation to the request characteristic. In fact, Bluetooth limits the size of a written value to 3 bytes smaller than the configured MTU (Maximum Transmission Unit), which defaults to 23, meaning that by default, you can only write 20 bytes at a time.

After connecting, you must perform the unlock process to authenticate the client. If the unlock process has not been completed successfully, all other API frames will be silently ignored and not processed.