TPMS TT02 User Guide
Sysgration Confidential
14
TT02 RS232 command settings
UART Setting: Baud rate 19200, Data bit 8, Stop bit 1, No Parity, ASCII
Activate Trigger
1. Activate by Button:
If Success:
TT02 --> COMPUTER: "BBBBBBBBBBBB” 12 bytes,
-
BBBBBBBBBBBB: Bluetooth Address
If Fail
,
TT02 --> COMPUTER: "$
TFAIL
#" 7 bytes,
2. Activate by UART:
COMPUTER --> TT02: "
$TXXXRR#
", 8 bytes
-
$T
XXXRR# = Command Code
-
$T
XXX
RR# = Trigger Timer in seconds (HEX)
Ex: XXX = 0x64, Trigger 100s.
-
$TXXX
RR
# = RF received threshold in minus RSSI
(
min RSSI).
-
Ex: RR = 0x4B, Receiving RF RSSI need above -75 dBm
If Success
, for
Sensor Format 2 (Advertising)
:
TT02 --> COMPUTER: "$TBBBBBBBBBBBBPPPPTTTTVVVV#” 27 bytes,
-
BBBBBBBBBBBB: Bluetooth Address
"$T
BBBBBBBBBBBB
PPPPTTTTVVVV#”
-
PPPP: Pressure in PSI
"$TBBBBBBBBBBBB
PPPP
TTTTVVVV#”
Ex: PPPP = 1234, Pressure is 123.4PSI
PPPP = -024, Pressure is -2.4PSI
(2.4 PSI is 17 KPA, 83 KPA (Raw data) - 100 KPA = 17, more than the MIN limit 10 KPA , so will display
negative character.)
TTTT: Temperature in Fahrenheit
"$TBBBBBBBBBBBBPPPP
TTTT
VVVV#”
Ex: TTTT = +200, Temperature is 200F
-
VVVV: Battery in mV
"$TBBBBBBBBBBBBPPPPTTTT
VVVV
#”
Ex: VVVV = 3200, Battery is 3200mV
If Success,
for
Sensor Format 1 (IBeacon)
:
TT02 --> COMPUTER: "$TBBBBBBBBBBBBMMMMNNNNRR#" 25 bytes,
-
BBBBBBBBBBBB: Bluetooth Address
"$T
BBBBBBBBBBBB
MMMMNNNNRR#"
-
MMMM: IBeacon Major Field
"$TBBBBBBBBBBBB
MMMM
NNNNRR#"
-
NNNN: IBeacon Minor Field