Robot Mania IV: Connections

Here comes the tedious part of the overall project; schematic wiring. I have designed a circuit schematic by using a circuit simulation software named Proteus Suite v7.8.

Hmmm…I have utilized almost all of the digital output and inputs to make it work.

The cool architecture of Arduino Uno’s library can be downloaded online for free. While I can’t find any suitable replacement for ultrasonic sensor and the Bluetooth module, I have to simply used the virtual terminal icon.

Servo motor and ultrasonic ranging sensor are used in obstacle avoidance robot. Three critical degree of rotation of servo motor is 0, 90 and 180. It records the reading at each and every point via ultrasonic ranging sensor.

Left LDR and right LDR are used in light seeking robot. The readings of both sensor controls the movement of the robot when it detected the change in light intensity.

Bluetooth controlled robot receives the signal via Bluetooth module HC-05 and served as a slave to the master (any Android device will do). The apps is developed by using MIT App Inventor.

Free roaming robot uses the bumper switches to sense the object knocked by the robot itself. Thus, only two switches are used and attached on the front part of the robot.

The front view:

Side view:

Top view:

Side view:

I am using an analog potentiometer to split all the functions or duties done by the robot. By simply adjusting the knob on potentiometer (analogRead), the robot will change its duty. 

Well...that's all about the electrical circuit connections.