Stepper motors that feature unipolar drives are widely used in applications that require high torque loads and fast position attainment. The unipolar operation provides stable Motor Control using a rel- atively simple firmware, as compared to bipolar drives. This Application Note discusses the use of a typi- cal 8-wire or 6-wire stepper motor, in
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the unipolar mode of operation, with a Z8 Encore! ® microcon- troller. Also discussed are the practical aspects of the full- step and half-step methods of driving a stepper motor, as well as a complete hardware and soft- ware implementation using the Z8 Encore! ® MCU. A simple schematic using readily-available compo- nents, along with the full source code in C, is used to implement a stepper driver. This basic hardware and software combination CAN be incorporated into larger control circuits with suitable modifications. Z8 Encore! ® Flash MCU Overview Zilog`s Z8 Encore! ® products are based on the new eZ8 CPU and introduce Flash memory to Zilog`s extensive line of 8-bit Microcontrollers Flash memory in-circuit programming capability allows for faster development time and program changes in the field. The high-performance register-to-reg- ister based architecture of the eZ8 core maintains backward compatibility with Zilog`s popular Z8 MCU.
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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