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Attiny85 As a Step/Dir Stepper Motor Controller

Somewhere in Greece, someone did something never done before... Seen those things before? Thing: 1 Thing: 2 Thing: 3 Oh, you have! You bought one of them you say? Oh... Don't worry, I did too. They did the job, yeah. But we paid for them much. Really much. And while our whole project would cost less than 60 bucks or euros without them, they slapped as in the face, then took our money and ran ... our preciou ...

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A simple brushless sensorless motor driver for AVR Atmega

Brushless electric motor (BLDC motors) are synchronous motors that are powered by a DC electric source via an integrated inverter/switching power supply, which produces an AC electric signal to drive the motor. For an introduction to BLDC motors, please look at my sensored motor driver post, here: http://davidegironi.blogspot.it/2013/09/a-simple-brushless-sensored-motor.html For this project, I've implement ...

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A Pickup Winding machine built on an ATmega8

The core of this project is an ATmega8. It features: wind counter slow startup automatic stop configurable motor speed configurable winds 2 directions If you are looking for a CNC version: you can find it here: http://davidegironi.blogspot.it/2016/06/a-cnc-pickup-winding-machine-built-on.html This winder has an LCD display that will show the current motor direction the rotating speed of your pickup the tota ...

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Drive a stepper motor with acceleration and deceleration using an Allegro driver on ATmega8

The stepper motor is an electromagnetic device that converts digital pulses into mechanical shaft rotation.Most common types of stepper motor can be bipolar or unipolar, depending on the winding. To make a stepper motor move, motor windings must be loaded in the correct order. A stepper motor move at steps, it's accuracy is usually expressed as degree per step. Microstepping is a method by witch motor accur ...

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A simple brushless sensored motor driver for AVR Atmega

Brushless electric motor (BLDC motors) are synchronous motors that are powered by a DC electric source via an integrated inverter/switching power supply, which produces an AC electric signal to drive the motor. Additional electronics control the inverter output amplitude and waveform (and therefore percent of DC bus usage/efficiency) and frequency (i.e. rotor speed). Because the controller must direct the r ...

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PWM Motor Driver with MOSFET H-Bridge and AVR ATmega8

Here is a very simple project of controlling a small DC-motor (taken from an old personal cassette player) with ATmega8. The ATmega8 is having three PWM channels, out of which two are used here. PWM waveforms are fed to MOSFET (RFD3055) H-bridge. Here, direction is controlled using a two-position toggle switch and speed of the motor is controlled by two push-buttons, one for increasing the speed and other f ...

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An AVR-Based Microstepping Bipolar Chopper Stepper Motor Driver (STMD)

Features Open Source - The schematic, parts list, and software are all freely downloadable! Hobbyist-friendly - No surface mount parts means allows this drive to be easily repaired! DMOS driver chips rated at 55V and 3 Amps. Easy parts availability - Electronic parts are all available at Digikey. Just add your own heat sink and mounting hardware. DIP Switch selectable modes of stepping: Full Step, Both Phas ...

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