Embedded Systems LogiMachine5 Power - Script Control Functions; JSON Library

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1. value = knxdatatype.decode(event.datahex, dt.bool)
2. data =string.format('%s value is %s', os.date('%c'), tostring(value))
3. -- write to the end of log file preserving all previous data
4. file =io.open('/mnt/usb/log.txt', 'a+')
5. file:write(data .. '\r\n')
6. file:close()
Output:
Mon Jan 3 05:25:13 2011 value is false
Mon Jan 3 05:25:14 2011 value is true
Mon Jan 3 05:25:32 2011 value is false
Mon Jan 3 05:25:33 2011 value is true
Example: Read data from file (config in format key=value)
1. for line inio.lines('/mnt/usb/config.txt')do
2. -- split line by '=' sing
3. items = line:split('=')
4. -- two items, line seems to be valid
5. if #items == 2 then
6. key = items[1]:trim()
7. value = items[2]:trim()
8. alert('[config] %s = %s', key, value)
9. end
10. end
6.1.22. Script control functions
script.enable('scriptname')
Enable the script with the name scriptname.
script.disable('scriptname')
Disable the script with the name scriptname.
status = script.status('scriptname')
Returns true/false if script is found, nil otherwise
6.1.23. JSON library
Note: json is not loaded by default, use require('json') before calling any functions from this
library.
json.encode (value)