librs232-luajit

Library for access to RS232 serial port from LuaJIT on GNU/Linux.

The complete library has two part, one it's the library written in C and other is the Lua module.

In first place you need compile with making.sh the C library. After that, it's possible use the module, you can follow the test.lua example.

Exist four methods:

• open
  • Arguments:
    • port_name: Name of device
    • baud_rate: Baud rate
    • timeout_usec: Timeout in micro-seconds
  • Return
    • true: if the connection is possible
    • false: anyelse
• read
  • Return:
    • count: Quantity of bytes read
    • data: Data bytes (string)
• write
  • Arguments:
    • data: Bytes to write
    • length: Quantity of bytes
  • Return
    • count: Quantity of bytes write
• close

Testing

	local rs232 = require("mod_librs232")
	port = rs232.new()
	port:open("/dev/ttyUSB0", 115200, 10000)
	count, data = port:read()
	print(data)
	port:close()