User's Manual

Revision: Dec, 2011
RAEMesh2 Module Command Interface
Format:
SOP Length Command Code Command Data EOP
Byte: 1 1 1 0~n 1
Byte Number Name Comment
0 SOP Radio Protocol beginning of packet. This is always ‘[‘ (0x5B)
1 Length Total length of packet + 0x20, include ‘[‘ and ‘]’.
2 Command Code 0x20 ~ 0xFF. Excluding:0x5A~0x5F and 0x7A~0x7F. 0xF0~0xFF are
reserved for common commands.
Even for packet sent from SDTE or RDTE to RCM.
Odd for packet response from RCM to SDTE or RDTE.
3 Command Data Hex
… …
N+3 EOP Radio protocol end of packet.. This is always ‘]’(0x5D)
The minimum length for one packet is 4 bytes long. The Length is 0x20 based. E.g. the total length of a packet without
command data is 4, the Length byte is 0x20 + 4 = 0x24.
The SDTE or RDTE always initiate the communication with Radio module (RRCM, SRCM). Radio Module responses to
the command it received.
The Command Code for packet sent from SDTE or RDTE to Radio module is even, the response from Radio module to
SDTE or RDTE is 1 higher than the command code.
Command Data can be empty.
No command for 0x5A~0x5F and 0x7A~0x7F.
A Section 0xF0~0xFF is reserved for common commands such as help, Version etc.
Caution: the maximum packet length from SOP to EOP is 64 bytes.
Notes:
1. All commands response in 50ms
2. Check RCM’s information when turn on the radio. Command: 5B 24 60 5D.
3. Wait at least 5s for RCM to finish the initialization after power on.
4. Check the network status of the STD before sending the data for first time. Command: 5B 24 20 5D.
5. It is recommend to add 1s interval between 2 data packets for STD. Check 0x5b 24 27 5d for sending
acknowledge with successfully. There is no ACK for transmission failed.
6. For STD, if there is no network, the RCM will automatically wake up every 10 minute to search for a new network.
It can be interrupted any time. RCM will keep in asleep if it has joined a network.