Blog Archives
Posted on 19 Feb 2008
This is an Arduino-based oscilloscope.With this instruction int val_read = ((analogRead(0)*5) / 1024.0) you can see the signal as you want.The display of this oscilloscope is a color graphic LCD 240×320.(All documents in Spanish)[more]
Posted on 13 Feb 2008
This project show you how to create Rotating Sprocket Wheel on the oscilloscope.The circuits that don’t really do anything useful, but are really neat nonetheless.Matt Bennett say “An interesting side-effect is that this circuit very clearly shows some of the shortcomings of digital oscilloscopes. Whenever an oscilloscope salesman comes around, he whips out this box with a switch and 2 BNC jacks. It has been known to render speechless the best salesmen from HP and Tektronix. They usually dismiss it as a toy, but I think that is just because they have to follow the party line: Analog scopes are dead. I have seen a digital scope or two accurately mimic the analog, most notably the Digital Phosphor scopes from Tektronix, but in general, the RSWG breaks digital scopes.”[more]
Posted on 08 Feb 2008
Here is the Oscilloscope Clock. V3.0.The firmware of the Dutchtronix AVR Oscilloscope Clock has been released. The clock has enhanced graphics and many new features like Date display and set, Roman Numerals Dial, 24 hr Dial, Binary Clock display, hexadecimal numeric time, fractional seconds display, Automatic Daylight Saving Time (US and EU) and GPS NMEA input: connect the clock to the serial port of GPS device and you’ll never have to set the time or day again.[more]
Posted on 05 Feb 2008
Designed by Bojan Banko he write: was doing an ultrasound project when at one point I couldn’t move forward without an oscilloscope.I’m hobbyst in electronics, and I don’t really need a real oscilloscope. I don’t want to spend money on it and I don’t have enough space in my electronics corner for it.So, I took a look what is offering at the Net. I found a great (and free) solution: Winscope. It’s using the sound card and that’s all you need. The problem with this solution is that you just can’t get the sample rate more than 44kSamples/sec. That’s enough for audio signals(<15kHz), but not for 40kHz ultrasound signals. You need around 10 samples per cycle (or more) of the signal you are measuring to get any decent waveform to actually view.[more]
Posted on 22 Jan 2008
It is a simple oscilloscope project based in a SX28 microcontroller from UBICOM, it doesn’t try to be an exact instrument measurement, only try to demostrate, with a very low cost and low quantity of materials, how much we could get from an SX28 plus the EPP parallel port in a PC.[more]
