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LC Meter using AVR microcontroller

LC Meter:  Schematic Source code This is the project I am currently working on (2010-01-23). The LC meter is based on Elmcie or Elsie and other similar LC meters. This project is in a very early prototype stage and is at the moment only capable of measuring inductors. Even though I have build the first prototype on a breadboard the results are very impressive. No problems with instability of the LC oscillat ...

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Turn your TV into a Digital Voltmeter using Atmel’s AVR 90S1200 microcontroller

This is an interesting voltmeter project that display the measured voltage on a TV screen, in giant digits as well as with analog bar. It also records the maximum and minimum values of measurements. The project was built by Alberto Ricci Bitti and was published in the May 1999 issue of Elektor Electonics. The circuit uses Atmel’s AVR 90S1200 microcontroller with the Maxim’s MAX192 analog to digital converte ...

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A multifunction digital meter using Atmega128 microcontroller

This is a multifunction bench test instrument built using an Atmega128 microcontroller and incorporate a lot of functions like voltmeter, ammeter, logic analyzer, frequency generator, frequency counter and also provides regulated DC power supply. This device is interfaced with a Windows PC to display the measurements. The PC software is developed in VB 6. The function generator is based on a MAX038 IC that ...

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Digital oscilloscope GLCD using Atmega32 microcontroller

This project describes how to make a digital oscilloscope using an Atmega32 microcontroller and a graphics LCD. The GLCD used has 64*128 pixel dots (GDM12864A with KS0108 processor) and the AVR runs at 16 MHz using an external crystal oscillator. To enhance the speed further, it uses an external A/D converter chip, ADC0820. The sampling rate is 650K samples per second. The maximum range of frequency display ...

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Building a digital light meter with a calibrated LDR using Atmega8 microcontroller

Measurement of light intensity is a prime necessity in several occasions.  The diversity of such needs make their way to various branches of physics and engineering as well as in media. For instance, in engineering, such kinds of measurements are needed to design optimum lighting conditions of a room. In photography, light intensity measurements ensure good quality pictures by determining the right exposure ...

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Make a breadboard adapter for your AVR microcontroller using attiny2313

If you like to play around with micro controllers you know this hustle: You want to test a part of a program and first you need to completely wire up the uC on the bread board. Not with these handy parts any more! These are complete programmable micro controllers that could be stuck to any solderless breadboard. Easy to program and easy to interface. The big advantage is, that you don't need double side PCB ...

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Low speed AVR oscilloscope V2.00 (Is updated on 19 Mar 2011)

>> The firmware was updated on 19 Mar 2011 << A few months ago a friend of mine -car mechanical at profession- told me that he had problem with some car sensors. He couldn't check, with a simple multimeter, if a sensor was working properly. I advised him to buy a LCD oscilloscope instead of a normal oscilloscope, because of its small size. The use of an oscilloscope is very helpful because you c ...

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