Harnam Singh Thakur wrote:
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"Would like to know about designing this control panel in Visual Basic."

hi harnam,

i think you will communicate with 52 using UART and then build some protocol to TAME the 8052 to obey the PCs commands. harnam i think doing it in visual basic is easy than doing in DOS based basic. you can create a VB form with as many buttons (an array also possible) you want. just add a 'MS COMM' control to your page set its properties like the 'port' , 'baudrate' etc.. now you just write the engine for protocol you designed. and you are ready to send the trough a serial port.

PS. Use a NUll Modem Serial cable

abhishek