This is the final project for ECEN1400: Introduction to Digital and Analog with Professor Alex Fosidck at University of Colorado at Boulder (Spring 2017). The goal of this project was to make a ball full of sensors which could detect changes in its environment and alert its operator. The ball consists of a custom printed …
ECEN1400 Final Project- Sensor Spy Ball Using Atmega Read More »
This project displays the temperature on an LCD display with an resolution of 0.06degrees. DS1820 is used for sensing the temperature. It can measure temperature range from -55deg to +125deg. But i take care of only the possitive temperature. There are 3 switches to change the alarm temperature, the user can increment the Alarm temperature by pressing the UP button and they …
DS1820 Temperature Controller using atmega8515 microcontroller Read More »
video Open Source Temperature Controller- Appliance Heat Exchanger Here’s a heat exchanger demo using the open source temperature controller. Full heat exchanger available here Intelligent controller, schematics, and code available here Read more: Open Source Temperature Controller- Appliance Heat Exchanger
Soldering SMD components isn’t as hard as you might think. In fact it’s easy. If you follow this instructables you’ll soon see just what great results you can obtain at home using just a hotplate. It’s not just being able to make small circuit boards that makes SMT soldering so good it’s also a nicer …
Soldering an SMT MOSFET Driver with a hotplate using microcontroller using atmega Read More »
The assembly code given here was written to see what it would take to make an AT90S1200 generate 8 channels of proper PWM. In this case, by proper, I mean with the maximum high frequency content consistent with the needed duty cycle and give clock. Take a look at the scope shots below and notice …
8 Channel PWM using AVR microcontroller Using Atmega Read More »
Described are the waveform capture method, example firmware and hardware designs. This material formed the basis of an article that was first published in the October, 2003 issue of Circuit Cellar magazine. The only components added to the operating Atmel AT90S2313 circuit (one capacitor and two resistors) to allow waveform sampling with < 1 microsecond resolution …
PWM Waveform Capture using AVR microcontroller Using Atmega Read More »
Take Maxim’s MAX038 function generator chip, add some frills, and you have a pretty nice tool for the bench. Downloads: Main Circuit Schematic Power Supply Schematic You can build this with switches instead of buttons if you don’t want to use a micro controller. Here is the controller code. AVRStudio 4.x Assembler Source for AT90S1200A …
MAX038-Based Sweep/Function Generator With Markers using AVR ATtiny2313 microcontroller Read More »
• 1 Khz From a Quartz Crystal • 1 V P-P Sine Wave Calibrated Output • 1 KHz Square Wave Output • 900 mv Inverted Sine Wave Output (Uncalibrated) Downloads Download the WINAVR main source for the 2313 version of the firmware: 2313sine.c Download the complete zipped WINAVR project for the 2313 version of the firmware: 1_kHz_sine_2313.zip …
A 1 Khz Digital Sine Wave Signal Source using ATmega8515 microcontroller Read More »
Sometimes when tuning various electronic hardware we need simple signal generator with various waveform and frequency. One of the options is to by a professional with variable gain professional coating and many additional functions. But if you are an amateur you might want to build one. This small project is dedicated for building one of …
Introduction Approach used for creating the pure sine wave described in this paper is done through manipulation of mathematical representation of the original sine wave. It is done by dividing half the sine wave into m (even number) segmentations, where area under a quarter of the sine wave from 0 to π/2 resembles series of …
Mathematical Manipulation of Pure Sine Wave Inverter Using Atmel 89S2051 Read More »
