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Now you can burn microcontrollers in your home with less cost of making AT89S51 series microcontroller burning IC kit. AT89Sxx series IC’s have inbuilt ISP (In System Programming) module so we can burning microcontroller easily. Here is the simple board circuit for making of AT89Sxx series kit for burning hex file into on-chip. Continue Reading…

An Inverter is a device that converts 12 volts d.c to 120 volts a.c. , which is what we use in our homes.  This project will handle about 300 watts, which is perfect for lights, small T.V.’s and radio equipment. Continue Reading…

Standard serial interfacing of microcontroller (TTL)  with  PC or any RS232C Standard device , requires TTL to RS232 Level converter . A MAX232 is used for this purpose. It provides 2-channel RS232C port and requires external 10uF capacitors.

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