Fully 3D-printable robot for Arduino Mega/Uno/Due Controller Board. Designed to fit up to 2 pcs of Arduino shields on top of the controller board.

• Chassis_top.stl
• Chassis_bottom.stl
• Motor_mount_plate.stl (2 pcs)
• Wheel_cover_14_t.stl (2 pcs)
• Track_wheel_14t.stl (6 pcs)
• Motor_cover.stl (2 pcs)
• Tank_link_pin.stl (68 pcs)
• tank_link.stl (68 pcs)
• Front_cover_for_HC_SR04.stl (2 pcs)

• Chassis_fastener_holder.stl (29 pcs). These are for holding chassis nuts in place so it is easier to assemble the robot.

• ISO10642 Screw M3x8 40 pcs
• ISO14579 Screw M3x12 8 pcs
• ISO14579 Screw M3x25 4 pcs
• ISO4032 Nut M3 46 pcs

• ISO4762 Screw M2x8 4 pcs
• ISO4032 Nut M2 4 pcs

• ISO4762 Screw M2x8 8 pcs
• Nylon Spacers M2x5 8 pcs
• ISO4762 Screw M2x12 8 pcs

• 2x geared DC motors
• Arduino DUE/Mega/UNO Controller Board
• L298P Motor Shield R3
• 7.4 V LiPo battery

• ESP8266 WiFI Development Board
• SSD1306 0.96" I2C 128X64 OLED LCD
• Ultrasonic HC-SR04 Distance Sensor 2 pcs
• HC-05 Bluetooth module

Usage of the skid steering algorithm:

#define MOTOR_SPEED_MAX 255     // Define max speed
#define MOTOR_SPEED_MIN -255    // Define min speed

SkidSteer skidSteer;

void loop() {
    skidSteer.move(255, 100);   // Move at speed 255 in x direction and 100 at y direction
}

You can find precompiled apk in Android-App folder. With this app you can create "programs" that can be executed over Bluetooth connection. It also has a serial console and a "joystick" manual control.