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Arduino robot project.

Development board: Arduino Uno Rev3, ATmega328 MCU.
Device driver: BA6222 2.2A H-Bridge motor dirver.
Perception: Sharp GP2D120XJ00F.
Power supply: Extreme toys 11.1V 1500mAh.
Linear voltage regulator 7805 - TTL/5V CMOS

click here to download ino file

Electrical scheme


Basic analog differential motion controller.
2x BA6222 2.2A H-Bridge Motor Driver.
LM324 quad operational amplifiers.
12V DC power supply (Extreme toys series).
Linear voltage regulator 7805.

Monostable multivibrator blogspot
Multivibrator blogspot

Electrical scheme
State machine & signals
Testing with ULN2803 (electrical scheme)

SCH & PCB (EAGLE) Monostable Multivibrator
PCB (EAGLE) Monostable Multivibrator
PCB (EAGLE) Monostable Multivibrator (Revision #2)

SCH (EAGLE) 2x H Bridge Motor Driver BA62xx IC
PCB (EAGLE) 2x H Bridge Motor Driver BA62xx IC
SCH & PCB (EAGLE) 2x H Bridge Motor Driver BA62xx IC
SCH & PCB (EAGLE) 2x H Bridge BA62xx IC (Revision #1)
PCB (EAGLE) 2x H Bridge BA62xx IC (Revision #2)
BOM (EAGLE) 2x H Bridge BA62xx IC (Revision #1, Revision #2)

8051 Embedded Robot ULN2803 DC Motor Driver.
Development board: Easy 8051 v6 for Atmel AT89S8253 MCU
Device driver: ULN2803 - 1xStepper Motor Controller, 1xStandard DC Drive Motor Controller
Perception: MICROSWITCH, IR LED, PHOTO TRAN.
Power supply: Extreme toys 12V 1500mAh.
Linear voltage regulator 7805 - TTL/5V CMOS

For download:

C - Optical track detector (AT89S8253)
HEX - Optical track detector (AT89S8253)
C - Avoiding obstacles (AT89S8253)
HEX - Avoiding obstacles (AT89S8253)