Appendix; Serial Communications Data Logging Protocol - Wahl Heat Spy DHS520 User Manual

Wahl DHS520

APPENDIX

Serial Communications Data Logging Protocol

he logging protocol applies to both the SERIAL PORT and BLUETOOTH module.
T
UART Settings
BAUD
START DATA PARITY STOP1,8,N,1
Classic Mode stream
When the trigger is pressed to the T1 position, a continuous stream of lines of data
of fixed (12 character) length is output every 0.5 ±0.1seconds.
EXAMPLE: B C C I
(i) Identifier B = C100
D = C055
(ii) Packet
(iii) Units
(iv) Mode
(v) Data
(vi) Termination
The IPAQ sends a * handshake to indicate 'H' hold – i.e. key released and data
logged
.
Page 46
57600 fixed
+972.0
C Classic – while key pressed
H Hold – when key released
C ° Celsius
F ° Fahrenheit
R ° Rankin
K Kelvin
I Instantaneous
P Peak
V Valley
A Average
In tenths up to ±999.9
In degrees after ±1000
Over-range is ± _ _ _ i.e. 0xAF,SP, 0xAF,SP, 0xAF
Under-range is ±_ _ _ i.e. 0x5F,SP, 0x5F,SP, 0x5F
CR LF
0x0D,0x0A
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