In circuit AVR programmer (ISP)

Perhaps this circuit is the simplest AVR programmer you can build. Its great advantage is the ability to program almost any AVR microcontroller, without the need to remove it from the circuit in which is connected (in circuit programming).

PIC16F876/3 adaptor for the simple PIC programmer

This adaptor extends the possibilities of the simple PIC programmer, to be able to program PIC micros like PIC16F876, PIC16F876A, PIC16F873 and PIC16F873A. Simply connect it to the main board.

A simple programmer for PIC microcontrollers

Perhaps this circuit is the simplest programmer for PIC microcontrollers you can build. It is connected to serial port of your PC and it has a very similar design with the SI-Prog programmer for the AVR microcontrollers. With the help of adaptors you can extend the possibilities and program more PIC microcontrollers.