Bruce Land writes: Turns out that the DMA channels on a PIC32 can move data from the ADC using the ADC done interrupt flag, but without wasting time in an ISR. The ADC can be triggered by a timer interrupt … Read more
Category Archives: oscilloscope
From the comments on our earlier USB oscilloscope with signal generator post, here’s a PC storage oscilloscope and logic analyzer by Nerd Ralph: A logic analyzer is a useful tool when working with micro-controllers, but when compared to the price of … Read more
Jan Henrik wrote this Instructable detailing the build of his DIY USB oscilloscope with signal generator: In this project I want to show you how to make an easy and cheap USB Oscilloscope. Specifications: Price: 20$ Frequency: 2-20000HZ Resolution: 16 Bit Voltage range: +-7V … Read more
The crew from AnalysIR have shared a simple technique for viewing the mark and space data from IR transmission on an oscilloscope. They call it the “silver bullet” method. The idea is to use a standard IR Led mounted into … Read more
Tektronix MDO4104B-6 mixed domain oscilloscope (MDO4000B) review and experiments by Shahriar: In this episode Shahriar reviews and demos the second revision of the industry’s first Mixed Domain Oscilloscope from Tektronix. The MDO4000B series offers improved signal integrity and performance. The reviewed … Read more
Shahriar writes: In this episode Shahriar demos the world’s fastest oscilloscope! The Agilent DSA-X 96204Q offers 160GS/s of conversion rate with a bandwidth of 62GHz on two dedicated ‘RealEdge’ channels. It can also provide 80GS/s conversion rate and 33GHz of … Read more
If you want to carry around a portable oscilloscope device at all times then check out this cool geek watch, the Oscilloscope Watch by Gabriel Anzziani of Gabotronics: The Oscilloscope Watch has all the features of a modern watch (time, calendar, alarm, etc…) … Read more
Sebastian voided his warranty and bravely went where others fear to tread, dissecting the Teledyne LeCroy HDO4024 12-Bit oscilloscope. He produced this post detailing his findings. Via the contact form.
Tomeko has posted an article describing miniscope v2d integrated arbitrary waveform generator: Cheap low-speed dual channel PC/USB oscilloscope and arbitrary waveform generator with STM32F3 microcontroller. Miniscope v2d is based on STM32F303CBT6 microcontroller – LQFP48 device from STM32F3 family featuring: 32 kB … Read more
Simple circuit to turn your oscilloscope into a TDR: This simple circuit allows you to use your oscilloscope as a Time Domain Reflectometer (TDR). This is how it works. Send a pulse down a cable and watch for the reflection. … Read more
Paulo Oliveira was experimenting with probing high speed signals with his oscilloscope. You might think that a 500 MHz probe would be adequate to probe a 125 MHz clock signal, but he demonstrates why this is not the case. He … Read more
Tim Kerby notes that there is now a Wiki for the Analog Discovery with lots of fantastic training materials. Check it out! Via the contact form.
Sebastian, amateur radio operator KF5OBS, recently had the opportunity to acquire a Teledyne LeCroy WaveAce 1002 Digital Storage Oscilloscope. Visit his website for his analysis, screenshots and conclusions. Via the contact form.
Check out Umair’s Digital oscilloscope, it was intended as an entry for the open 7400 Logic Competition. Unfortunately, it was entered late, and won’t be competing in the competition. We’re sorry for them, as this seems like an awesome effort. … Read more
Patrick Cambria posts this simple oscilloscope project using a Picaxe-08M microcontroller and a potentiometer. The Picaxe is programmed in BASIC and the entire MCU program follows: main: READADC10 1,B0 SERTXD(#B0,10) goto main The output from a potentiometer voltage divider is … Read more
András Veres-Szentkirályi is part of the H.A.C.K. hackerspace in Hungary. They acquired an affordable, slightly used UNI-T UT2025B digital storage oscilloscope. He wondered what useful information could be gained from sniffing the USB port using Wireshark on a Linux box. … Read more
David from Nut&Bolt has written a short overview of affordable oscilloscopes (sub 400 euro) on his website. Via the contact form.
Csaba Bleuer writes:”I bought a Siglent SDS1102CM oscilloscope, and since there are no reviews about it on the net I have written one.” Check out Csaba’s well illustrated review on his website. Via the contact form.
A RC Wien Bridge oscillator outputs a pure sine wave. The frequency depends on the resistor-capacitor combination in the oscillator. Embedded Eric built one using instructions from “Analog Circuit Design“: I have been slowly reading through Jim Williams “Analog Circuit … Read more
Sqkybeaver let us know Sparkfun now carries a scope similar to the one he reviewed. It is a two channel 100MHz digital scope with 500MSa/s real-time sampling rate. Saving waveforms to a USB flash drive is available, as well as interfacing with the computer over the USB port. The … Read more