The UnoProLyzer is an easy to use 4Channel 30KHz Oscilloscope designed for use with the Arduino. All hardware and software is open sourceDesigned by Earth People Technology, Ships from United States of America
Designed and Assembled in the United States of America The Earth People Technology Ultra Low Cost Open Source Oscilloscope uses the UnoProLogic2 along with the UnoProLyzer application software runn...Read More…
Designed and Assembled in the United States of America
The Earth People Technology Ultra Low Cost Open Source Oscilloscope uses the UnoProLogic2 along with the UnoProLyzer application software running on a PC. Together these two provide a simple yet powerful oscilloscope tool to allow you to examine four analog channels running up to 30KHz. The hardware has been simplified to remove extra cost. The input signals are limited to 0 to +5Volts and the sample rate is shared across all four channels.
The Do It Yourself (DIY) Electronics world has evolved into a complex world of microcontrollers and high speed digital busses. The average DIY project has at least one microcontroller, two communication peripherals, two power supplies and one LED. The complexity of building a project has been made easier by using standard hardware such as Arduino, Raspberry Pi, Beagle Bone and others. However, when the inevitable bug arises, you must have some way to troubleshoot that bug. Test tools are the DIYers best solution to the problem of detecting and fixing bugs. A multi-channel scope is indispensable for measuring timing relationships between outputs, or between an input on one pin and the output in response to that pin on another. You don't need an expensive scope. At the low clock speeds Arduinos operate, one of the hobbyist USB scopes would suffice. However, test tools especially USB scopes are quite expensive.
The UnoProLyzer is an Open Source Oscilloscope Application created by Earth People Technology. This application runs on a Windows 7/8 PC. It sends commands to and receives the data from the UnoProLogic2 and stores each channel data in its own separate buffer in memory. The UnoProLyzer collects all samples from each channel by streaming across up to four dedicated communication “pipes”. It then performs the oscilloscope functions at the software level. This includes
The UnoProLogic2 takes advantage of the laptop and its extremely powerful multi-core processors and multi-threaded operating system. The UnoProLogic2 is effectively an ADC on a "stick". The Windows software does all of the heavy lifting. The result is a powerful four channel oscilloscope in a relatively inexpensive hardware package.
The UnoProLogic2 commands the ADC to start a conversion on the channels selected by the user. It then waits for the ADC to complete the conversion on all channels. It transfers the data for each channel across its own dedicated communication pipe. Then starts the process over again. The UnoProLyzer application will accept each data word and decode the pipe number it came across. It stores each word into a separate buffer for each channel. The UnoProLyzer then performs post processing on each data word. It performs trigger detection, smoothing, sorting, scaling and searching. It then displays the data set in 500 data point segments.
Why is the Cost So Low?
The UnoProLogic2 cost is well below the other test tools on the market because everything possible has been done to keep the cost low. This means the hardware is essentially an “ADC on a USB Stick”. The ADC samples the analog input channels, then the samples are sent to the appropriate channel buffer in the PC. This allows the UnoProLyzer application to do all of the heavy lifting. All of the other test tools out there attempt to do as much as possible on the USB hardware, from collecting samples, triggering, and memory storage to post processing FFTs. The CPU/Operating System on your laptop is a far more powerful device capable of doing all the work of an oscilloscope. So why not use it instead of making it a dumb display device like all the other USB scopes on the market.
The UnoProLogic2 leverages the power of your PC/CPU and keeps the expensive hardware to a minimum. This makes it low cost. It is true that the low cost of the UnoProLogic2 comes at the cost of a high sample rate and large bandwidth. However, about 60% of all debugging of the Arduino signals can be accomplished at the lower sampling rates.
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