Aug 19, 2014 by Atmega Editor
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...
Aug 5, 2014 by Atmega Editor
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...
Feb 20, 2013 by Atmega Editor
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...
Feb 14, 2013 by Atmega Editor
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...
Jan 2, 2013 by Atmega Editor
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...
Nov 12, 2012 by Atmega Editor
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...
Nov 9, 2012 by Atmega Editor
The Electric Eel Wheel is a smart electric spinning wheel which helps you spinning the fiber of your choice into yarn easily instead of traditional wheel. This Electric...
Nov 7, 2012 by Atmega Editor
This is the second stepper motor driver circuit I build. The first one had 4 linear current sources and got so hot it was barely usable. It had some cool leds though....
Jun 23, 2012 by Atmega Editor
Got some scavenged stepper motors from printers/disk drives/etc lying around?
Some probing with an ohmeter, followed by some simple driver code on your microprocessor...
Jun 18, 2012 by Atmega Editor
Do you know this classic wooden labyrinth game with two knobs for X and Y rotation?
So, I’ve decided to modify one by connecting two standard servos to the knobs...
Jun 13, 2012 by Atmega Editor
With this circuit you can drive a unipolar stepper motor. It operates in full step mode. You can get a stepper motor from an old 5.25 disk drive. The AVR...
Jun 12, 2012 by Atmega Editor
With this circuit you can control two unipolair stepper motors in full step mode via the RS232 serial port of your PC. A terminal program such as...
With this project you can control a unipolar stepper motor. You can control both the speed and the direction of the motor.
The speed and direction and can changed with...
Jun 8, 2012 by Atmega Editor
This project gives a speed control of DC motor through PWM method. The Dc motor is derived by the L298 driver IC.
You can also control the direction of the motor.
September 25th, 2014
This project is a proof of concept diagnostic & testing board for us[...]
September 24th, 2014
The project involves an experiment in implementing a human-computer interface by [...]
September 23rd, 2014
Laser communications systems are wireless connections through the atmosphere. They wor[...]
September 22nd, 2014
Our electronic drawing board integrates an easy human interface with a standard elec[...]
September 21st, 2014
For our final project, we decided to build a digital message machine which displayed o[...]
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