JBAU

Uploaded with your edits of the sketch and script.

Your version, led in gui stays red always, changes on uno. Mine same as before, works gui and board. What i wanted was to be able to close the script while the uno led was active, & re-run the script, with the gui graphic of the led be green, not red. I don't think is possible without actually polling the pin & not the buffer, i could be wrong. I am thankful as i can see a neater or more compounded way of writing things , thanks!

Looks Prettier, Led Graphic now stays red , nice try though Realistically, probably just need a way to redraw/refresh the gui dependent on whats in the buffer.

Stumped. 1 sent = 1ON 0 sent = 1OFF No changes to led

Nice, thanks

ConsoleWrite debug Just started, more reading Got a semi - show me , example ?

Cheers, i really really like this

I have this on my UNO R3; #define led1 13 // Variable that will contain the character received via the serial port int Received = ' '; void setup() { // Open the serial port at 9600, Define the pin led1 as OUTPUT Serial.begin(9600); pinMode(led1, OUTPUT); } void loop() { if (Serial.available() > 0) { // If the serial buffer contains data Received = Serial.read(); // Read the received data switch (Received){ // Interpret the data received and act accordingly case '0': digitalWrite(led1,LOW); // If I get 0 turn off led1 Serial.print("1OFF"); break; case '1': digitalWrite(led1,HIGH); // If I get 1 turn on led1 Serial.print("1ON"); break; }}} And Using; #include <ButtonConstants.au3> #include <GUIConstantsEx.au3> #include <WindowsConstants.au3> #include 'CommMG.au3' ;~ Declare variable $Red & $Green for easier explanation Global $Red = 0xFF0000 Global $Green = 0x00FF00 #Region ### START Koda GUI section ### Form= ; ~ Creation of the main Gui Position 402px_Right , 120px_Down , 389px_Wide & 341px_High $Form1 = GUICreate ( "Arduino GUI" , 402 , 120 , 389 , 341 ) ;~ $Led1 30px in size & Assigned $Red $Led1 = GUICtrlCreateGraphic ( 10 , 10 , 30 , 30 ) GUICtrlSetGraphic ( - 1 , $GUI_GR_COLOR , $Red , $Red ) GUICtrlSetGraphic ( - 1 , $GUI_GR_ELLIPSE , 0 , 0 , 30 , 30 ) ;~ Creation of ~ 3 buttons $Button1 = GUICtrlCreateButton ( "Pin 13" , 50 , 10 , 55 , 30 ) GUISetState (@SW_SHOW) #EndRegion ### END Koda GUI section ### ;~ Com Serial Settings Global $Com_Port = 3 Global $BitPerSecond = 9600 Global $BitDati = 8 Global $Parity = 0 Global $BitStop = 1 Global $FlowControl = 2 Global $sErr _CommSetPort ( $Com_Port , $sErr , $BitPerSecond , $BitDati , $Parity , $BitStop , $FlowControl ) Global $Button1_press = True ;~ $BS_PUSHBUTTON variable declaration , management of the buttons Global $BS_PUSHBUTTON While 1 $ReceivedFromCom = _CommGetString ( ) Sleep ( 20 ) ;~ ConsoleWrite ("Received =" & @ CRLF & $ ReceivedFromCom) Switch $ReceivedFromCom Case "1ON" GUICtrlSetGraphic ( $Led1 , $GUI_GR_COLOR , $Green , $Green ) GUICtrlSetGraphic ( $Led1 , $GUI_GR_ELLIPSE , 0 , 0 , 30 , 30 ) GUICtrlSetGraphic ( $Led1 , $GUI_GR_REFRESH ) Case "1OFF" GUICtrlSetGraphic ( $Led1 , $GUI_GR_COLOR , $Red , $Red ) GUICtrlSetGraphic ( $Led1 , $GUI_GR_ELLIPSE , 0 , 0 , 30 , 30 ) GUICtrlSetGraphic ( $Led1 , $GUI_GR_REFRESH ) EndSwitch $nMsg = GUIGetMsg ( ) Switch $nMsg Case $GUI_EVENT_CLOSE Exit Case $Button1 If ( $Button1_press = False ) Then _CommSendString ( "0" ) ;Turn OFF led1 $Button1_press = True Else _CommSendString ( "1" ) ;Turn ON led1 $Button1_press = False EndIf EndSwitch WEnd So i would like to draw the $led1 state using _CommGetString to set the LED green if Pin13 is active. So when the gui is launched, i know exactly what state Pin13 is at and nor just rewriting the current state. Salute to Martin