Homemade USB interface board using a PIC
This is a USB interface board I’ve built around a PIC 18f4550 microcontroller from Microchip. As many of you probably know, I’ve used my computer’s parallel port to connect many …
Read MoreHardware Interfacing
ISP Programming Kit for AT89S52 and AVR series Microcontroller
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 …
Read MoreStepper Motor interface on I/O ports
Of all motors, step motor is the easiest to control. It’s handling simplicity is really hard to deny – all there is to do is to bring the sequence of …
Read MoreLCD Interface on I/O ports
Most projects you create with the 8051 microcontroller require some form of display. The most common way to accomplish this is with the LCD (Liquid Crystal Display). LCDs have become …
Read More7 Segment Display interface on I/O ports
For the seven segment display you can use the LT-541 or LSD5061-11 chip. Each of the segments of the display is connected to a pin on the 8051 (the schematic …
Read MoreMicrocontroller interfacing with RS 232
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 …
Read MoreSerial Communication – RS 232
Serial communication is basically the transmission or reception of data one bit at a time. Today’s computers generally address data in bytes or some multiple thereof. A bit is basically …
Read More