Rack Palette - Operators Manual - Strand Lighting

Macros and Show Control
f:close()
If you had four sensors, one in the Entrance, one at the Exit, one in the Theater and
one in the Great Hall, the log file may look like this:
Entrance was tripped at 11:11:37 on 05/15/06
Exit was tripped at 11:11:51 on 05/15/06
Theater A was tripped at 11:12:40 on 05/15/06
Great Hall was tripped at 11:15:52 on 05/15/06
Theater A was tripped at 11:21:22 on 05/15/06
Exit was tripped at 12:01:46 on 05/15/06
Entrance was tripped at 12:22:17 on 05/15/06
Example - Temperature Indicator using Serial Port
Communication
In this example an external temperature sensor is hooked to Palette using one of
the serial ports. At specific intervals, the current temperature is read and different
cues are run to indicate to the public, using color or movement, the temperature. A
Time Event with an hourly repeat executes this code:
-- open Com1: with proper parameters
HC.SerialOpen(1,'9600,N,8,1')
-- request temperature from gauge (hex code)
HC.SerialWrite(1,'0x4b')
A very short while later, (enough time for the gauge to respond) this code is called:
-- sucks in temperature as a string
temp = HC.SerialRead(1)
-- close serial port
HC.SerialClose(1)
-- converts the string 'temp' to a number (adding 20)
temp = temp + 20
-- limit the bottom (-20F will be the coldest)
temp = math.max(temp,0)
-- limit the top (110F will be the hottest)
temp = math.min(temp, 130)
-- normalize between 1 and 12 rounding down
cue = 1 + math.floor(temp * 11 / 130)
-- run the cue sequence
HC.CueListGotoAndExecuteFollows('Temperature', cue)
See Also
www.lua.org
Macro Editor and Commands
User Interface Macros
Macro Buttons
Time Events
Triggers
Cue Properties
Blue Box
PowerPoint Automation
Palette OS Operations Manual 286