AC4868 868 MHz Transceiver
User’s Manual
Americas: +1-800-492-2320 Option 3
28
Laird Technologies
Europe: +44-1628-858-940
Hong Kong: +852 2923 0610
www.lairdtech.com/ramp
Set Max Power
The OEM Host issues this command to limit the maximum transmit power emitted by the transceiver. This can
be useful to minimize current consumption and satisfy certain regulatory requirements. The radios are shipped
at maximum allowable power.
Command:
0xCC 0x25 Max Power
Bytes Returned: 2
Response:
0xCC Max Power
Transmit Buffer Empty
The OEM Host issues this command to determine when the RF transmit buffer is empty. The Host will not
receive the transceiver response until that time.
Command:
0xCC 0x30
Bytes Returned: 2
Response:
0xCC 0x00
Deep Sleep Mode
The OEM Host issues this command to put the transceiver into Deep Sleep mode. Once in Deep Sleep mode,
the transceiver disables all RF communications and will not respond to any further commands until being reset
or power-cycled. This command is valid for both Servers and Clients.
Command:
0xCC 0x86
Bytes Returned: 2
Response:
0xCC Channel
Read Temperature
The OEM Host issues this command to read the onboard temperature sensor. The transceiver reports the
temperature in
˚
C where 0x00 - 0x50 maps to 0 - 80
˚
C and where 0xD8 - 0x00 maps to -40 - 0
˚
C.
EEPROM Byte Read
Upon receiving this command, a transceiver will respond with the desired data from the addresses requested
by the OEM Host.
Command:
0xCC 0xC0 Data1 Data2
Bytes Returned: 4+
Response:
0xCC Data1 Data2 Data3
Parameters:
Data1 = EEPROM Address
Data2 = Length (0x00 – 0x80)
Data3 = Requested data
