Somfy RS-485 Protocol

[Ravi Kiran S]

You must have:
- id of your Somfy RS-485 transmitter,
- path to your RS-485 port from Logic Machine (often LM has more than one),
- use frame builder to prepare apropriate command e.g. up or down
- you can log the response from serial

Hi

- yes i have id of the transmitter but where i have to write
- i have connected to the RS485-3 means port 3
- using the frame builder only i have all hexa codes
 so this is the code i have write in event based script but it is not working

-- for curtain up

if not port then
require('serial')
port = serial.open('/dev/RS485-3', {
      baudrate = 4800,
      parity = 'odd',
      databits = 8,
      stopbits = 1,
      duplex = 'half'
    })
port:flush()
end
if port then
  ch01=up
  char = string.char(0x7F, 0xF2, 0xFA, 0x01, 0x00, 0x00, 0xB5, 0x2B, 0xFA, 0xFF, 0xFE, 0x06, 0x43)
  -- wait for 1.5 seconds
os.sleep(0.1)
  char = string.char(0x7F, 0xF2, 0xFA, 0x01, 0x00, 0x00, 0xB5, 0x2B, 0xFA, 0xFF, 0xFE, 0x06, 0x43)
  alert(char)
  port:write(char) 
end


-- For curtain down
if not port then
require('serial')
port = serial.open('/dev/RS485-3', {
      baudrate = 4800,
      parity = 'odd',
      databits = 8,
      stopbits = 1,
      duplex = 'half'
    })
port:flush()
end
if port then
  char = string.char(0x7F, 0xF2, 0xFA, 0x01, 0x00, 0x00, 0xB5, 0x2B, 0xFA, 0xFF, 0xFE, 0x06, 0x42)
  -- wait for 1.5 seconds
os.sleep(0.1)
  char = string.char(0x7F, 0xF2, 0xFA, 0x01, 0x00, 0x00, 0xB5, 0x2B, 0xFA, 0xFF, 0xFE, 0x06, 0x42)
  alert(char)
  port:write(char) 
end

pls do needfull todo work