DC Motors which need high current and high voltage usually give high velocity and high torque. For small robots like line follower robot or fire fighting robot, I think IC motor driver L298 (up to 2A total current) is better choice. While for large and heavy robot, you need high current DC motors also H-Bridge [...]
The L297 integrates all the control circuitry required to control bipolar and unipolar stepper motors. Used with a dual bridge driver such as the L298N forms a complete microprocessor-to-bipolar stepper motor interface. Unipolar stepper motor can be driven with an L297 plus a quad darlington array. This note describes the operation of the circuit [...]
Download Sharp GP2D12 Analog Distance Sensor Manual and Tutorial
SharpGP2D12Snrs.pdf
Download ping parallax ultrasonic distance sensor datasheet, schematic and program code sample:
» Download Link
PIC18CXXX/PIC16CXXX DC Servomotor Application Note:
Download the tutorial:
DC servomotor application of PIC.pdf
Another tutorial how to get start with the AVR microcontroller:
Just download the file here:
getting_started_with_the_AVR.pdf
Why would you want to interface the Keyboard? The IBM keyboard can be a cheap alternative to a keyboard on a Microprocessor development system. Or maybe you want a remote terminal, just couple it with a LCD Module.
Maybe you have a RS-232 Barcode Scanner or other input devices, which you want to use with existing [...]
The object of the fire detection is to navigate the robots through a maze of walls and look into the rooms and see if there is a fire. Using a UV sensor, a flame the size of a single candle can be seen 5 meters away. The Trekker utilizes a Hamamatsu UV [...]
The AVR series consists of a fairly broad range of hybrid-bit-width microcontrollers (nominally 16-bit code word, 8-bit data bus and ALU) sharing a common instruction set and differing primarily in the on-chip peripherals and package options. These devices don’t show a clear genealogical relationship to any other microcontroller core I’m aware of, but some variants [...]
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If youre interested in robotics, motion control, or just want to learn about stepper motors, then you should try building this versatile stepper motor controller.
This project allows you to control the speed, direction, and step size of a unipolar four-phase stepper motor. The controller is capable of handling motor winding currents of up to 1.25 [...]
