Connecting circuit for MAX232 [1]
Eagle component library [2]
PIC12 Product family [3]
Pic 16F876 tutorial on RS232. Includes hardware & software [4]
12F675 Simple LED flash code [5]
12f675 specification [6]
How to cause 12f675 to be not reprogramming [7]
PIC delay loops generator [8]
12f675 using a timer interrupt & ADC code [9]
C sample code for PIC micros [10]
Some bit banged I2C master PIC code [11]
RS232
http://www.wcscnet.com/Tutorials/SerialComm/Page1.htm
I2C