The most popular are the
PIC series by Microchip, the AVR by
Atmel, and the 68HC11 by
Motorola . All have a number of
high-level languages (
C/
Forth/
BASIC) for cheap or free
and simple chip programmers that can be built for under $10.
If the compiling/burning/testing cycle is too tedious, the Basic Stamp and its copycats offer a more integrated approach.