RoadRunners Evolution – Communication Protocol v1.5
- 37 -
Data Capture
for Workforce
in Motion
Command
Set Mode
Header
0x03 (flash only)
Length
00 02
Payload
0x01 if MASTER, 0x00 if SLAVE, [Role switch]
Response
0x03 00 01 01 if done
0x03 00 01 00 if not
When in Master, the Module connects to the address specified by Set REMOTE BDA or to the last
paired device.
The real MASTER in a Bluetooth piconet is the device which manages the clock used for the
frequency hopping. We used to speak about MASTER too for devices which create the connection
(that's true if you do not switch the clock role)
A device with a slave BT clock role is unable to synchronize more than one master clock. If more than
one SmartModule needs to connect to the same other device (PC, Access Point…) you will need to
switch the clock role to allow the slave to be connected to more than one master. Note that most of
the BT access point already generates the BT clock role switch when a master device creates a
connection.
Command
Get Mode
Header
0x04
Length
00 00
Payload
Response
0x04 00 02 {Mode (1byte) | Switch role (1byte)}
Remark
0x01 if MASTER, 0x00 if SLAVE
0x01 if want automatic switch role, 0x00 otherwise
Command
Set Remote BDA (Used by Master Mode of the SM)
Header
0x05
Length
00 06
Payload
BDA(ex:0x00,0x02,0xC3,0x21, 0xDE,0xFA)
Response
0x05 00 01 01 if done
0x05 00 01 00 if not
Remark
If The SM is set to Master (using Set MODE command), the SM use
this Address to connect to.
Command
Get Remote BDA
Header
0x06
Length
00 00
Payload
Response
0x06 00 06 {6 bytes of BDA}
Remark
