Matrix Orbital Corp

We own a GLK12232-25-WBL module and we're programming in Lua. We're actually encountring problems with getting the module type. It said in the manual that it should retrun a byte hex value but it's actually returning this: ~255 here is our code:

function LCD.ReadModuleType(Resource)
local VersionNum
COM.ClearBufferIn(Resource)
LCD.SendCommand(Resource, "~254~055")
VersionNum = ""
while VersionNum == "" do
VersionNum = COM.GetData(Resource, 100)
print(VersionNum)
Sleep(50)
end
tblResult = _MISC.ConvertDecToTbl(VersionNum)
return VersionNum, LCD._VersionNumberString[tblResult[0]]
end

We though that the module would return "22" instead of "~255".
Someone knows how to solve this??

Hello...

Your code looks fine...the problem actually lies within our firmware. Our firmware doesn't include the module type, therefore it has to be loaded on our end before the customer receives it. Unfortunately some units made it past quality assurance...When the module type is not entered, you will receive 0xFF

thanks for your answer!

I wandered if there was any way we could write the version number into the module? Maybe a function or something? thx in advance!

Unfortunately our firmware doesn't have that ability on this current revision...that would be too easy!! If you are looking for a way to identify the unit, why don't you check out the Set Serial Number (254 52 [byte1] [byte2]) command.

thx for the trick!