Lua Read Write Serial Port
I have Openwrt router with Arduino connected via USB FTDI adapter. Serial port is /dev/ttyUSB0 Arduino code prints some data: First part of data printed with delay via command print(), for example: Serial.begin(9600); Serial.print(var1); delay(1000); Serial.print(var2); delay(1000); Serial.print(var3); delay(1000); And second part printed with println() command: Serial.println('); Serial.println(var4); Serial.println(var5); Serial.println(var6); So when I open Serial port in terminal I can see something like this: 1 then timeout in 1 sec, then 1 2 next timeout. And then 1 2 3 last timeout and 1 2 3 4 5 6 It works in Terminal program and in console in OpenWRT, for example screen /dev/ttyUSB0 I need make a Lua script that will read Serial port and print the data in the same way. I have a simple script, but it doesn't work as expected. Rserial=io.open('/dev/ttyUSB0','r') while true do chain = nil while chain==nil do chain=rserial:read(); print(chain) end end it shows all data at once. It doesn't show first 3 vars one by one with delays. Norton ghost 2003 dos boot cd iso.
Seems it is because of rserial:read() - it will read until it receives a newline character. It stated in similar question: I tried to run this command as was advised there: stty -F /dev/ttyUSB0 -icanon but it doesn't help and I don't understand why. Is it the way to fix this behavior via stty?
Or I definitely need to use another Serial libs for Lua script? All of these libs seems pretty outdated for now and I don't want to use outdated stuff. From the: When called without formats, it uses a default format that reads the next line (see below). A new line is anything in the buffer until the next newline character.
So as long as you don't send a newline character Lua will wait one as it has been told by calling read() Once a newline character is received you will be prompted any other character in that line. Terminal programs usually update every byte to show what they receive in 'real-time'. So if you want to have the same behaviour you may not use read() without any arguments. Use read(1) to read every single byte without waiting for anything else. Crack dlya rhinoceros 5.
Lua serial port module (requires ffi). Contribute to cbrake/LuaSerialPort development by creating an account on GitHub. Mar 10, 2017 - I would like to write data through USB (port COM) thank to a lua script. In fact, I want to send a. Do you know any method I could use to send data through a serial port thanks to lua script? I read your template plugin.