Index

DC motor Servo project

What you need:

- Encoder motor from hp printer
- Atmel mega32 avr set up with 16Mhz crystal
- 12V power supply

Schematics:

full schematic, click to enlarge

you dont have to build it all at once, just what you need for the step your on, but dont take anything apart, cause they all build on each other.


                         ATmega32 - 40 PIN DIP LAYOUT FOR DECODER AND PWM - 
                                      _______________________
                               ALI <- [ 1]PB0         PA0[40] <- up button
                                      [ 2]PB1         PA1[39] <- down button
                                      [ 3]PB2         PA2[38] -> led
                               BHI <- [ 4]PB3         PA3[37] 
                                      [ 5]PB4         PA4[36] 
                                      [ 6]PB5         PA5[35] 
                                      [ 7]PB6         PA6[34] 
                                      [ 8]PB7         PA7[33] 
                             RESET -> [ 9]RST        AREF[32] <- +5V VCC
                            5V VCC -> [10]VCC         GND[31] <- GROUND
                            GROUND -> [11]GND        AVCC[30] <- +5V VCC
                       16 MHZ XTAL -> [12]XTAL1       PC7[29] -> LCD DATA 7
                       16 MHZ XTAL -> [13]XTAL2       PC6[28] -> LCD DATA 6
                                      [14]PD0         PC5[27] -> LCD DATA 5
                                      [15]PD1         PC4[26] -> LCD DATA 4
                          Encoder 1   [16]PD2         PC3[25] -> LCD E  
                          Encoder 2   [17]PD3         PC2[24] -> LCD RS 
                                      [18]PD4         PC1[23] -> LCD RW 
                                      [19]PD5         PC0[22]                  
                                      [20]PD6         PD7[21] -> BLI
                                      ______________________                         
 
 
                 +5V -> AHI

This will be assembled in a series of stages, you should have each stage working before moving on the to next