Michael MBWBLUE Mode D'emploi page 15

Read Radio Frame 2
Returns the next radio frame from the buffer of the MBWBLUE, if there is any. This version of the radio
frame read command returns a maximum of 241 bytes of data (all bytes hexadecimal). The
MBWBLUE is capable of receiving radio frame with up to 240 bytes, that is the maximum length field
of the radio frame is F0 (hex).
Request:
Answer OK:
Answer error:
The format of [Frame data] is:
LL T0 T1 T2 T3 T4 00 RSSI [Radio Frame]
LL
T0, T1, T2, T3, T4
FE / FF
RSSI
[Radio Frame]
01 FE 06 10 CRC CRC
01 FE FF 10 [Frame data] CRC CRC
01 FE FF 10 FF [248 arbitrary bytes] CRC CRC
overall length of the returned data (including this byte and up to the last byte
of [Radio Frame]
time difference between the reception of the radio frame and the transmission
of this radio frame over the Bluetooth interface (resolution 5.3 µs). To
calculate the real reception time of the radio frame you have to subtract this
value from the current time.
This flag has got two purposes:
1. If it is not zero, T0, T1, T2, T3, T4 are containing the time difference
between radio reception and Bluetooth reading. If it is zero, they are
containing the absolute time of the Bluetooth receiver at the time of
the radio reception.
2. If the flag is FF there is no battery low warning, if the flag is FE the
battery low warning of the MBWBLUE is on.
received signal strength indicator 0%...100%. To get the RSSI in dBm:
(RSSI -120) dBm
the received radio Frame, for format specifications see the documentation of
the radio meter manufacturer. The [Radio Frame] field is filled up with arbitrary
bytes up to a field length of 241 Bytes.
MBWBLUE 15