Download Free Software Owon Oscilloscope Hack

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A Rigol oscilloscope has a USB output, allowing you to control it with a computer and and perform additional processing externally. I was inspired by Cibo Mahto's article, and came up with some new Python oscilloscope hacks: super-zoomable graphs, generating a spectrogram, analyzing an IR signal, and dumping an oscilloscope trace as a WAV file. The key techniques I illustrate are connecting to the oscilloscope with Windows, accessing a megabyte of data with Long Memory, and performing analysis on the data. Analyzing the IR signal from a TV remote using an IR sensor and a Rigol DS1052E oscilloscope. Super-zoomable graphs One of the nice features of the Rigol is 'Long Memory' - instead of downloading the 600-point trace that appears on the screen, you can record and access a high-resolution trace of 1 million points. In this hack, I show how you can display this data with Python, giving you a picture that you can easily zoom into with the mouse. The following screenshot shows the data collected by hooking the oscilloscope up to an IR sensor.

Pc satellite tv pro serial crack. In the above picture, the sensor is the three-pin device below the screen. Since I've developed an, my examples focus on IR, but any sort of signal could be used. By enabling Long Memory, we can download not just the data on the screen, but 1 million data points, allowing us to zoom way, way in.

The graph below shows what it sent when you press a button on the TV remote - the selected button transmits a code, followed by a periodic repeat signal as long as the button is held down. The IR signal from a TV remote. The first block is the code, followed by period repeat signals while the button is held down. But with Long Memory, we can interactively zoom way on the waveform and see the actual structure of the code - long header pulses followed by a sequence of wide and narrow pulses that indicate the particular button. That's not the end of the zooming - we can zoom way in on an edge of a pulse and see the actual rise time of the signal over a few microseconds.

You can do some pretty nice zooming when you have a million datapoints to plot. To use this script, first enable Long Memory by going to Acquire: MemDepth. Next, set the trigger sweep to Single. Capture the desired waveform on the oscilloscope. Then run the Python script to upload the data to your computer, which will display a plot using matplotlib.

To zoom, click the '+' icon at the bottom of the screen. This lets you pan back and forth through the data by holding down the left mouse button. You can zoom in and out by holding the right mouse button down and moving the mouse right or left. The magnifying glass icon lets you select a zoom rectangle with the mouse. You can zoom on your oscilloscope too, of course, but using a mouse and having labeled axes can be much more convenient. A few things to notice about the code. The first few lines get the list of instruments connected to VISA and open the USB instrument (i.e.

Your oscilloscope). The timeout and chunk size need to be increased from the defaults to download the large amount of data without timeouts. Next, ask_for_values gets various scale values from the oscilloscope so the axes can be labeled properly.