FSUIPC and Arduino - Serial problem

[jan789]

Hi folks, I work on MCP based on Arduino. I read/write offsets through FSUIPC by LUA script. Unfortunately I have one problem. I tried to explain it with parking brake. I have on push button. The code in arduino:



...
void pushButton(){
button = digitalRead(prkgbrake);
if (button == HIGH && exbutton == LOW && millis() - last > ddelay){
Serial.write("brake:1\n")
while( digitalRead(prkgbrake) == HIGH){
}
}
}
...


and this is LUA script



....
x = com.open("COM3", 115200, 0)

function offset(handle, str)
ipc.log(str)
end

event.com(dev, 20, 1, 0, "readSerial")



The problem is that if I push several times push button I get at first correct messages


brake:1
brake:1
brake:1
brake:1

but then I get something like that


brake:1
br
ake:1
brake:1brake:1
brak
e:1



Could someone help me where is the problem, and how to solve it? Thank you in advance :)