DUO LIGHT

The DUO Light is an ATMega328 based computer. The machine interfaces with a composite video monitor, PS/2 keyboard, and SD card slot. The computer also has a 64 KB SRAM chip.

Note that the DUO Light is only compatible with FAT16 formatted SD cards with a capacity of 2 GB or less.

Programs are written in a proprietary bytecode called DUO Light bytecode (DLBC). Programs are loaded from the SD card to SRAM chip and interpreted by the microcontroller.

The computer will run "start.dlbc" after booting or whenever the escape key is pressed. 



Parts to use

Microcontroller: ATMEGA328P-PU
Crystal oscillator: ABL-16.000MHZ-B2
(x2) 20 pF capacitor: 140-100N2-200J-RC
(x2) 3 pin male header: 69190-403
64 KB serial SRAM: 23LCV512-I/P
SD card slot: 1010070864
(x6) 10K ohm resistor: 291-10K-RC
600 ohm resistor: 291-620-RC
200 ohm resistor: 291-200-RC
8 pin IC socket: 1-390261-2
28 pin narrow IC socket: 1-390261-9
Button: 101-TS7311T1602-EV
Switch: MHSS1104
RCA connector: KLPX-0848A-2-B
Circular connector: KMDLX-6S-N
DC connector: 163-179PH-EX
3.3V voltage regulator: LD1117V33
(x2) Larger capacitor: UVR1H100MDD1TA

Optional

Battery holder: 12BH335-GR
5V AC converter: WSU050-1500-R
64 MB SD card: http://www.amazon.com/64MB-Secure-Digital-Card-BQI/dp/B0014CA7DS
7 pin female header: 929850-01-07-RA
8 pin female header: 929850-01-08-RB