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This robot is controlled by a visual basic program (through the serial port), and can move in three different velocities by a pulse width modulated (PWM) signal generated by a PIC microcontroller (16F877).
The robot can be operated in two modes, "normal control" and "light tracker" modes. In the normal control mode, the robot can carry objects sized from 3 - 18 cm from place to another within 150 m. whereas in the light tracker mode, it follows the light in a dark room.
Many sensors were used, such as light sensors; tilt sensor, stall current sensing, battery level sensing, and some limit switches and touch sensors used in the hand. It can keep its speed constant when it goes on a hill (tilted) and automatically turns the light on when it becomes dark dark. Also to keep the IC's safe, it disconnects the current when it's stuck and the hand stops when holding something.
4 DC motors were used controlled by a PIC microcontroller 16F877 and 3 motor driver circuits.
It took about 4 months, and costs about 600$
The robot can be operated in two modes, "normal control" and "light tracker" modes. In the normal control mode, the robot can carry objects sized from 3 - 18 cm from place to another within 150 m. whereas in the light tracker mode, it follows the light in a dark room.
Many sensors were used, such as light sensors; tilt sensor, stall current sensing, battery level sensing, and some limit switches and touch sensors used in the hand. It can keep its speed constant when it goes on a hill (tilted) and automatically turns the light on when it becomes dark dark. Also to keep the IC's safe, it disconnects the current when it's stuck and the hand stops when holding something.
4 DC motors were used controlled by a PIC microcontroller 16F877 and 3 motor driver circuits.
It took about 4 months, and costs about 600$
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Signing UpStep 1Design the Project
at the initial stage, a design of the project was provided. mainly, defining the block diagram; see the figure.
A more detailed Circuit Diagram is required at this stage, however, to facilitate this, the main modules identified were:
1. Microcontroller
2. Sensors
3. Motors
4. Wireless circuit
5. PC program.
A 3d Design was done as well, see the figure.
A more detailed Circuit Diagram is required at this stage, however, to facilitate this, the main modules identified were:
1. Microcontroller
2. Sensors
3. Motors
4. Wireless circuit
5. PC program.
A 3d Design was done as well, see the figure.
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I added fine print.
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