waveform

Minimum Mass Waveform Capture and Display using AT90S2313 microcontroller using Atmega

Leave a Comment / Using Atmega /

A 128 x 64 graphic LCD is in the clear plastic box at the top. It is connected to the waveform capture and control unit in the green pencil box below the display.  Downloads AVR Studio 3.5  ASSEMBLY SOURCE for the waveform capture controller. AVR Studio 3.5  ASSEMBLY SOURCE for the control panel and LED Display controller. […]

Minimum Mass Waveform Capture and Display using AT90S2313 microcontroller using Atmega Read More »

thermometer (1)

Simple LM335 Thermometer using microcontroller using Atmega

Leave a Comment / Using Atmega /

Not too many parts. When a voltmeter is connected across the outside terminals of the output connector, its display reads out in degrees C. I’ve been fascinated by the LM335 for some time -maybe my obsession with stability finally gave way to my fascination with a circuit with intentional thermal drift. I finally bought some

Simple LM335 Thermometer using microcontroller using Atmega Read More »

Frequency Meter

Frequency Meter with 100 MHz RF desktop channel using ATtiny2313 microcontroller

Leave a Comment / Using Atmega /

This basically the frequency meter section of the frequency meter/pulse generator based on the AT90S2313 described elsewhere on this site, combined with the 100 MHz RF interface described in the page about the RS-232 to 100 MHz RF desktop channel adapter. Built and align this is the same manner as the 100 MHz RF desktop

Frequency Meter with 100 MHz RF desktop channel using ATtiny2313 microcontroller Read More »

oscillator board

1750 Meter Lowfer Band amplitude modulated RF source using ATtiny2313 microcontroller

Leave a Comment / Using Atmega /

Download the firmware: mor040220BBeacon.asm This is a low power signal source I put together one evening to provide 187 KHz RF signals for an anticipated receiver investigation. Under Federal Communications Commission rules inside the United States, one is allowed to operate a transmitter without a license under certain conditions. Here, I have copied the relevant section

1750 Meter Lowfer Band amplitude modulated RF source using ATtiny2313 microcontroller Read More »

sampmeth

Minimum Mass Waveform Capture using AVR microcontroller using Atmega

Leave a Comment / Using Atmega /

Capturing repetitive waveforms at 1 million samples per second using PWM and a comparator. Download AVR Studio Source wfcao 030326 .asm The impetus for developing this technique came from my own need to capture repetitive waveforms using the least expensive and lowest part-count means possible. I wanted to be able to view the waveforms on either

Minimum Mass Waveform Capture using AVR microcontroller using Atmega Read More »

Tester

Testing Device for DiSEqC-Switches using ATtiny13-20PI

Leave a Comment / Using Atmega /

This is my first AVR-project on this page. The DiSEqC-Tester allows to test DiSEqC-switches that uses 1.0 or 1.1 protocols. (DiSEqC-Switches with 2.0 and 2.1 protocol have backwards compatibility with 1.0 & 1.1 respectively and also may be tested). The device every second sends a DiSEqC-message that makes switch a DiSEqC-switch. Four LEDs are intended

Testing Device for DiSEqC-Switches using ATtiny13-20PI Read More »