Sunday, May 3, 2009

Things that we purchsed

Due to lack experience in microcontroller, and newbie in project design. Most of the devices we buy from shops rather to construst and build. We are mainly focusing on writing programming and learn how maximase to use those devices we buy.

Unipolar Steppr motor


Photo above shows a unipolar stepper motor that my team will use it. It is bought from cytron tecnology and cost us RM 50. We chose unipolar stepper motor for our project design because it is more easy to use it compare to bipolar stepper motor.

Motor Driver

Due to lack experience in designing the motor driver of stepper motor, we plan to buy this motor driver from cyton tecknolgy. We will discuss in details and advantages in future post. The motor driver cost us RM 135.

Encoder

Photo above shown an encoder. We are quite regret to buy this encoder. This is because we can easily build my our own. Furthermore, this encoder didnt provide the output shaft for us. So it make difficulty for us to construct a output shaft for it. It is very expensive , RM 60.

Radio Frequency (transmitters and receivers)


Photo above shows 2 set of different frequencies of radio frequency, 315 MHz and 415MHz. Due to we want to communicate in bi-directional between car and remote control that we already discussed in previous post. Therefore, 2 set of transmitters and receivers are needed.

Microcontroller (PIC 18 F 877A)
Photo above shows the 40 pin microcontroller that provided by the school. We need to learn it start from zero.

LCD display
Photo above shows the LCD display that we purchase from cytron. It is a cheaper LCD display. Again we need to learn how to write the programning for this LCD display. We will use this LCD screen to display the speed as well as the torque for stepper motor.

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