An ATmega328 based robot
hardware:
ATmega328 Arduino UNO board
SR04 ultrasonic range detector
one small tower pro servo
tamiya tracks ( got them from a bulldozer toy )
one tamiya twin-motor gearbox that I geared to go slow with a lot of torque
fuses, buttons , switches ,
breadboard cables , a tiny breadbord, 4 18650s, a twin 18650 case that connects them in series
two single 18650 cases , dc jacks , H bridges , plywood , screws , random pieces of clear plastic, etc
Arduino UNO configuration:
Moters digital 2 , 3 , 7 , 8
SR04 digital 5 , 6
Servo digital 9
software:
C instead of C++,
and Atmel Studio, not Arduino, IDE.