Serial Port communication using SWFKit

[dmennenoh]

OK, I kind of got it working. The relay expects hex commands, so am using the \x escape char to send what I need.

commx.writeStr("\xFE\x01");

That turns the relay on. Cool beans!

However,
commx.writeStr("\xFE\x00");

Doesn't turn it back off, as it should...

254,1 to turn it on
254,0 to turn it off

Can't figure it out...

[dmennenoh]

Seems it may be the cport control not being able to send a 0.

Tech support told me: "However, I have seen some serial devices/software unable to send a value of 0, which can be problematic (a value of 0 is actually just an RS-232 start bit). "

So... cportX is not too good it seems. I am going to see if MSComm will work...

so lame... I thought I had this.

[dmennenoh]

OK, so while the control doesn't write the 0 if you use \x00, it will write it if you use StringStream like so:

Instead of this:
commx.writeStr("\xFE\x00");

You use this:
var ss = new StringStream;
ss.put('\xFE');
ss.put(0);
commx.write(ss);


Works a treat! Thanks to SwfKit's support for the answer! Really cool being able to turn on/off electrical devices from Flash!