The RetroWiz Project

ATMEGA328 based retro AT-PC computer. Anything else, but the most famous AVR from Arduino with few resistors manages VGA output, audio output, SD card and PS/2 keyboard. The code is open sourced under GPL.

Don't know what to do with your old CRT monitor and PS/2 keyboard? Don't throw them away. This platform enables you to turn your AVR into a retro PC computer. No other chips are needed. You can code games like Commander Keen or whatever you want with 168*200 pixels and 16 colors. All keyboard, audio and video processing is done by software in background.

Partlist

Exported from avga_upc_v2.sch at 10/27/19 3:21 AM

EAGLE Version 7.7.0 Copyright (c) 1988-2016 CadSoft

Assembly variant: 

Part   Value     Device        Package      Library         Sheet

30MHZ  32.0MHz    ABM3         ABM3        abracon         1

C1    18p      C-EUC0603       C0603       rcl           1

C2    1u       C-EUC1206       C1206       rcl           1

C3    100u      CPOL-EUE2.5-6     E2,5-6       rcl           1

C4    100n      C-EUC0603       C0603       rcl           1

C5    100n      C-EUC0603       C0603       rcl           1

C6    100n      C-EUC0603       C0603       rcl           1

C7    100n      C-EUC0603       C0603       rcl           1

C8    18p      C-EUC0603       C0603       rcl           1

C9    1u       C-EUC1206       C1206       rcl           1

C10   1u       C-EUC1206       C1206       rcl           1

C11   1u       C-EUC1206       C1206       rcl           1

C12   100n      C-EUC0603       C0603       rcl           1

C13   1u       C-EUC0603       C0603       rcl           1

C14   1u       C-EUC0603       C0603       rcl           1

C15   1u       C-EUC0603       C0603       rcl           1

C16   100n      C-EUC0603       C0603       rcl           1

D1    B0530W     DIODE-SCHOTTKY_    SMA-DIODE     SparkFun2        1

D2    B0530W     DIODE-SCHOTTKY_    SMA-DIODE     SparkFun2        1

IC1   REG1117    REG1117        SOT223       burr-brown       1

IC2   ATMEGA328-20A ATMEGA168-20A     TQFP32-08     avr           1

IC3   LP2985-33   V_REG_TPS76433SOT23-5 SOT23-5      SparkFun2        1

J1    POWER_JACKPTH POWER_JACKPTH     POWER_JACK_PTH   SparkFun2        1

LED1   BLUE      LED1206        LED-1206      SparkFun2        1

R1    3k3      R-EU_R0603      R0603       rcl           1

R2    220R      R-EU_R0603      R0603       rcl           1

R3    100R      R-EU_R0603      R0603       rcl           1

R4    100R      R-EU_R0603      R0603       rcl           1

R5    220R      R-EU_R0603      R0603       rcl           1

R6    3k3      R-EU_R0603      R0603       rcl           1

R7    1k       R-EU_R0603      R0603       rcl           1

R8    1k       R-EU_R0603      R0603       rcl           1

R9    100R      R-EU_R0603      R0603       rcl           1

R10   100R      R-EU_R0603      R0603       rcl           1

R11   220R      R-EU_R0603      R0603       rcl           1

R12   1k       R-EU_R0603      R0603       rcl           1

R13   470R      R-EU_R0603      R0603       rcl           1

R14   820R      R-EU_R0603      R0603       rcl           1

R15   100R      R-EU_R0603      R0603       rcl           1

R16   470R      R-EU_R0603      R0603       rcl           1

R17   820R      R-EU_R0603      R0603       rcl           1

R18   100R      R-EU_R0603      R0603       rcl           1

R19   470R      R-EU_R0603      R0603       rcl           1

R20   820R      R-EU_R0603      R0603       rcl           1

R21   100R      R-EU_R0603      R0603       rcl           1

R22   3k3      R-EU_R0603      R0603       rcl           1

R23   3k3      R-EU_R0603      R0603       rcl           1

R24   1k       R-EU_R0603      R0603       rcl           1

R25   1k       R-EU_R0603      R0603       rcl           1

R26   1k       R-EU_R0603      R0603       rcl           1

R27   1k       R-EU_R0603      R0603       rcl           1

R28   1k       R-EU_R0603      R0603       rcl           1

R29   1k       R-EU_R0603      R0603       rcl           1

R100   1k       R-EU_R0603      R0603       rcl           1

R101   1k       R-EU_R0603      R0603       rcl           1

S1    RESET     TAC_SWITCHSMD     TACTILE_SWITCH_SMD SparkFun        1

SV1   ISP      MA03-2        MA03-2       con-lstb        1

U$2   DIN6      DIN6         DIN6        SparkFun2        1

U$3   AUDIO-JACKPTH AUDIO-JACKPTH     AUDIO-JACK     SparkFun        1

U$100          SDCARDVAR1      SDCMF-10915W010  kingfont_sdcmf10915w010 1

X1           HF15H         HDF15H       con-subd        1

Game source code (firmware) download here

project page: https://web.archive.org/web/20180115225027/http://prometheus4.com/retrowiz/index.php/about