Introduction The BalanceBot is a singular axis self balancing robot that is capable of adjusting itself to changes in weight and position. We developed the Balance Bot (BB or B2) from a single servo and a single accelerometer. This was very much a proof of concept to show the capabilities of the ATMega644 in doing […]
BalanceBot Using Atmega644 Read More »
Introduction We developed a new way for student groups to chalk advertisements for events. This project is a radial printing device for drawing with chalk/markers on flat surfaces. High-Level Design dea Rationale and Sources Anyone who has done any sidewalk chalking knows that it is one of the few tasks that humans were not designed
Radial Chalker Using Atmel Atmega32 Read More »
Intro Summary Thinking about what a CDE (culminating design experience) should be, we devised a project that combines the microcontroller programming principles learned in ECE 476: Microcontroller Design with the control theory concepts learned in ECE 472: Feedback Control Systems to create an academically viable stationary helicopter. The device consists of a lever with a
Stationary Helicopter Using Atmel Mega32 Read More »
1. Introduction For our final project we built an ATmega32 based stepper motor controller which measures the angular position of the motor shaft using an optical encoder and quadrature decoder. Our system performs 3 basic functions: (1) Communicate with a PC by means of a RS-485 interface, and (2) Generates step and direction signals for
Stepper Motor Indexer & Decoder ECE 476 Using ATmega32 Read More »
Introduction For years scientists and scholars alike have been plagued by one common obstacle which, until now, has proven to be impossible to overcome. How do you find the country you want on a globe? Sure, the easy answer is to just use the longitude and latitude coordinates, but really, that’s quite confusing. Some may
The Rotating Globe Using Atmel Mega163 Read More »
Abstract For a final project for EE 476 at Cornell University under the instruction of Bruce Land I designed and built a fertilizer flow rate control unit tailored to the needs of Lin Davidson. Instead of conventional mechanical drive methods, the delivery rate was controlled through the use of an Atmel AT90S8515 microcontroller. Ground speed
Fertilizer Feed Rate Controller 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 Atmega8 microcontroller Read More »
For measuring motos speed there can Optical interrupter used like H21A1. This is a device where IR LED and photo-transistor is coupled in to plastic housing. The gap between then allows interrupting signal with opaque material and this way switching the output from ON to OFF. This device can be connected to Microcontrollers ICP pin
Measuring motor speed and display result on LCD using ATmega8 microcontroller Read More »
As explained in earlier article, Stepper motor is operated by energizing the stator coils in an ordered sequence. When the input sequence of signal is applied to the motor leads, it starts rotating in steps. AT89C51 microcontroller has a current rating of 50mA. It can neither source nor sink huge current. ULN2003 is high voltage
How to control Stepper Motor using AT89C51 Microcontroller Read More »
The ATtiny2313-based project is an experiment on the closed loop DC servomotor control system (SMC) by Elm Chan. It can be used for practical use with/without some modifications. The closed loop servo mechanism requires real-time servo operations, such as position control, velocity control and torque control. It will be suitable for implementation to any embedded
DC Servomotor Controller System Meter using ATtiny2313 microcontroller Read More »
