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 […]
Attiny85 As a Step/Dir Stepper Motor Controller Read More »
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 implemented a simple brushless sensoreless
A simple brushless sensorless motor driver for AVR Atmega Read More »
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
A Pickup Winding machine built on an ATmega8 Read More »
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
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
A simple brushless sensored motor driver for AVR Atmega Read More »
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
PWM Motor Driver with MOSFET H-Bridge and AVR ATmega8 Read More »
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
An AVR-Based Microstepping Bipolar Chopper Stepper Motor Driver (STMD) Read More »
Servo motors are so called “closed feedback” systems. This means that motor comes with control circuit, which senses if motor mechanism is in desired location and if not it continuously corrects an error until motor reaches proper point. Servo motors are widely used in robotics, remote controlled planes, vehicles. So they come in many shapes
Servo motor control using AVR Read More »
Introduction Contents [show] In this tutorial, you’ll learn how to control a DC motor’s direction using an H-bridge. To reverse a DC motor, you need to be able to reverse the direction of the current in the motor. The easiest way to do this is using an H-bridge circuit. There are many different models and
Lab: DC Motor Control Using an H-Bridge Read More »
REQUIREMENTS: 1. Microcontroller (AtMega 16) 2. A Brushless DC motor (BLDC) 3. An Electronic Speed Controller (ESC) 4. Power source to drive the motor (LiPo battery) DESCRIPTION: Brushless motors have much more satisfying results as compared to brushed motors. The basic difference between them is that in a brushless motor, the rotor itself contains the
Controlling a BLDC Motor with an ESC Read More »
