I have just installed a projector at home and realised that the cool down time can vary...

Having a quick look through most of the protocol for projectors you can get status back from them to tell you when they have called down, e.g. my HC6000

POWER ON/OFF POSSIBLE send 30h 30h 76h 50h 4Bh 0Dh it will return 30h 30h 76h 50h 4Bh 31h 0Dh if the on/off function is posible.

So it would be good to get a cool down screnn " Please wait projector cooling down" while the script is polling the projector...

yes, my theater does all that with a JVC DLA RS2. However I do not use the Pronto directly, but rather have a PC do that work

I thourght you might do that,, on another note , have you found any good/easy to use ethernet/IP analouge converter or tempreture converter?, i have some one with a rack that over heats now and then, i need to get the temprature reading back to the pronto.. its a pitty the RFX9600 didn't have a temprature sensor on it, ( may be next time, you guys in belgium)

Why confuse everything with hex markup? The answer to the simplest solution is in the ASCII translation of the data.

Send
30h 30h 76h 50h 4Bh 0Dh is in ASCII "00vPK\r"

Receive
30h 30h 76h 50h 4Bh 31h 0Dh is in ASCII "00vPK1\r"

One line will send and get response.

var str = serial.match("00vPK\r","\r",200);

Then use substring to strip off what you don't need.

var sResult = str.substring(5,1); // leaves you with a string of "1" or likely "0" if unit is not ready.

Got ya.. is the 200 a time out in ms?

If you are curious about the match() function, why not have a look at the Dev Guide? Who knows what tidbit of information you might discover that you did not know. ;-)

However, yes, and I chose an arbitrary value of 200.

When you mention about the match fuction, i found it in the dev guide, i think i had been up too long and needed some sleep ..LOL its funny how the time gets away from you when you start programming... the gray matter has started to tick over again, its a long time since i last did any programming. i think i got a tick out of my pronto too, but that has now disapeared, or i could have been dreaming... :))