Mantracourt Electronics Limited
T24 Technical Manual
12
From ID
This contains the ID of the device that sent the packet.
RSSI
This indicates the signal strength that this packet was received at. See
RSSI
& CV
in
Appendix A
.
CV
This indicates correlation value which equates to the quality of the signal when this packet was received. See
RSSI
& CV
in
Appendix A
TIMEOUT
This packet is returned if the device does not respond.
Packet Type
From ID
RSSI
CV
09
00 00 00
00
00
Packet Type
This is 0x9 hex (9 decimal) and may have higher bits set which indicate Error, Low Battery and Broadcast.
From ID
This contains the ID of the device that sent the packet.
RSSI
This indicates the signal strength that this packet was received at. See
RSSI
& CV
in
Appendix A
.
Note: Some versions of modules may not send the RSSI and CV bytes.
CV
This indicates correlation value which equates to the quality of the signal when this packet was received. See
RSSI
& CV
in
Appendix A
Note: Some versions of modules may not send RSSI and CV bytes.
DATA INVALID
This packet is returned if the device has been written to and the data written is invalid.
Packet Type
From ID
RSSI
CV
0A
00 00 00
00
00
Packet Type
This is 0xA hex (10 decimal) and may have higher bits set which indicate Error, Low Battery and Broadcast.
From ID
This contains the ID of the device that sent the packet.
RSSI
This indicates the signal strength that this packet was received at. See
RSSI
& CV
in
Appendix A
.
CV
This indicates correlation value which equates to the quality of the signal when this packet was received. See
RSSI
& CV
in
Appendix A
Pairing…
Pairing is a method of communicating between two devices so that they configure themselves to one or another's
radio settings and enables them to identify each other by means of ID and default Data Tag.
Additionally the pairing mechanism can pause a device from performing its default behaviour as some devices
operate in a low power mode where they are mostly asleep. This makes communications impossible so the pairing
process stops the low power behaviour.
The pairing process is usually initiated by one device (a handheld for example or PC software using a base station)
and this enters pairing master mode and is ready to pair for a user defined time period.