Oscilloscope — это бесплатное программное обеспечение для осциллографа, которое отображает только XY спектры сигнала или аудиофайла. Вы не можете анализировать сигнал, а только просматривать его XY-спектры. Вы можете либо подать сигнал через 3,5-мм аудиоразъем, либо использовать микрофон вашего ПК, либо просто выбрать аудиофайл на своем ПК, чтобы просмотреть его сигнал.  Но существуют различные другие инструменты для осциллографа, которые требуют коммуникационных устройств для приема и обработки сигналов. Некоторые работают с Audrino, а некоторые — с программным обеспечением на основе микроконтроллеров. The Oscilloscope is an important tool in any electrical engineer workbench. No matter if you are a beginner or professional engineer, you would require this tool. If you want something more advanced that can provide you with more information than your multimeter to troubleshoot your circuit, the Oscilloscope is a must-have! Without further ado, let us jump right into it to find out more about the Oscilloscope. Today, we will be covering: What is a Oscilloscope?. Как сделать цифровой осциллограф из компьютера своими руками? Как сделать цифровой осциллограф из компьютера своими руками? Начинающим радиолюбителям посвящается! О том, как собрать самый простой адаптер для программного виртуального осциллографа, пригодный для использования в ремонте и настройке аудиоаппаратуры. www.- В статье рассказывается также о том, как можно измерить входной и выходной импеданс и как рассчитать аттенюатор для виртуального осциллографа.

The Arduino can reliably gather voltage readings at a frequency of between and KiloHertz. Transfered to a PC, these points can be accurately plotted against time. This Instructable will show you how the analogue input can be repeatedly added to a byte buffer and then transferred to a serial monitor. The data is collected using a high frequency interrupt, whose period can be accurately determined. The frequency can be altered open hardware oscilloscope 6.5 produce a range of possible periods.

I have written a PC interface to display the data and control the arduino. My PC program is presented as is - it would take a very long instructable to explain it! The data output from the Arduino is not complex. I am sure others will write interfaces for the operating system of their choosing I have written two slightly different versions for the Arduino data capture. One utilizes software triggering for when an accurate change in voltage is required, open hardware oscilloscope 6.5 the oscilloscope triggers.

The second, uses hardware edge triggering based on an interrupt on Arduino pin 2. The hardware version runs a little faster at the highest frequency.

The PC interface now includes the option to set the voltage reference to accurately reflect the real value of the Arduino "5V" line. There are also small adjustments to the Arduino software. If there is interest, let me know. The following component works- alternatives may be viable with program tweaking- I leave that to you!

Simple Buffer box open hardware oscilloscope Open Hardware Bench 900 6.5 accept analogue voltages: Only required if you don't already have voltage buffers. The trigger level can be specified in mV. Sampling commences when the voltage climbs above or falls below by more than the trigger value, between two subsequent sampled readings. The reference voltage can be set. Useful open hardware oscilloscope 6.5 you find the "5V" line is not at 5V, or you are using open hardware oscilloscope 6.5 device whose reference is entirely different.

Lcd button support. The Lcd adc port is specified by the variable lcdport Serial Monitor set at baud. In a fast run the arduino will wait for a serial response of any character for milli seconds after outputting data. If a character is received a handshakethe Arduino will immediately gather more data.

If mS is up more data is recorded, regardless. If 0 is sent triggering is cancelled. Non zero trigger levels produce triggering. The lcd screen buttons open hardware oscilloscope 6.5 whether the trigger is on a posive or negative slope. No serial port text is sent during a run - only raw data. During a fast run open hardware oscilloscope 6.5 sample period and edge select can be altered. A fast run is stopped using the lcd select key. Set voltage reference "vref" to match Arduino.

Send vref to Arduino. Note that only the software oscilloscope version uses this information. To calculate the sofware trigger level. Setting the voltage reference displays the voltage more accurately than working with the default 5V level. Essentially we set up an interrupt which grabs data automatically at a controllable frequency. If triggering is on, data is not transferred to the buffer until the triggering condition is met.

These bits determine the division factor between the system clock frequency and the input clock to the ADC. Set the number of bits used in the analogue port capture. For speed 8 bits are read. Otherwise, the value is right adjusted. Set the interrupt to repeatedly Auto Trigger when the analogue port is read. Open hardware oscilloscope 6.5 the use of the sbi function. Open hardware oscilloscope 6.5 and the cbi function are very useful for setting and clearing data register bits.

To trigger the interrupt either triggered is set to true in setup and the data starts recoding immediately. If the difference is greater than the trigger, triggered is set to true and the data is stored in the buffer. This number is added to the buffer size during the frequency calculation to maintain the accuracy of the observed frequency. Essentially if no triggering is selected, the adc interrupt is enabled and data is captured immediately. If triggering is selected an interrupt on digital port 2 is used to enable the interrupt on the adc port 1.

Digital port 2 can be configured to read analogue signals and generate an interrupt on rising or falling data edges. It is very fast.

My interrupt routine is called gotinterrupt and as I am using digital port 2 the interrupt id is 0. The flag triggered controls whether the digital port 2 interrupt starts the analogue port open hardware oscilloscope 6.5 interrupt. When triggered is false the interrupt starts the adc interrupt when it detects an edge in the analogue input. In the software triggered version the trigger variable is used mathematically to set the triggering level.

In the hardware version it simply toggles triggering. Only used by the software triggered oscilloscope to interpret trigger level.

I found this very useful package on the Internet. VB programmers will find this interesting! If you right click on the address in the bar at the top of windows file explorer you will find the option to copy the folder address. A square wave is available on the digital port. Select again and you will see it plotted by the oscilloscope.

Select frequency and you will get the square wave frequency. The first estimate is based on the rising edges at the midpoint of the open hardware oscilloscope 6.5 range.

The second is based on a technique outlined in an excellent article at:. The NEP fits the bill and open hardware oscilloscope 6.5 cheap. It has a simple dc offset circuit- make sure you trim the K pot to set the output voltage to zero for an input of zero. The bipolar converter allows for a signal open hardware oscilloscope 6.5 is below zero to be measured by the analogue port, which can not be taken below zero.

This bipolar converter is interesting. In the past I have designed these with an op amp, precision voltage reference and lots of trim pots. This design was inspired by an article which was supported by Ronald Michallick of Linear Applications.

He suggested using a three resistor bridge and supplied an excel spreadsheet to design it. If you need a different range of input voltages use the spreadsheet to get your own resistor open hardware oscilloscope 6.5. Setup the two 1k trim pots with an accurate resistance meter so that the upper and lower resistors meet the design specification.

Alter the spreadsheet b2-b3 values if you want strict accuracy. That is So relatively coarse voltage changes are observed with 71mV jumps.

The A. The DC bias is set at the midpoint of our analogue port voltage 5V. No external DC will transfer across the 10uF capacitor. This circuit works well with open hardware oscilloscope 6.5 microphone pre-amp. To setup this circuit connect to the arduino, Use the raw data scale on the pc software. Grab the port data and trim the K pot so that the input is Putting the circuits in a box is useful, The separate outputs can be inter-connected as needs arise. Note the 0.

Check your circuits before testing. All responsibility for the use of this article rests with you. My turbo version is the fastest internal ADC. It uses a potentiometer to set the trigger level. Open hardware oscilloscope 6.5 20Mhz version was developed from work done by Bob Daviswho realised that the Arduino was never going to be able to directly measure significantly high data rates.

His elegant solution was to use an external ADC and a fifo to capture the data at a high clock frequency. Once captured, the fifo flags the data capture completion and the Arduino transfers the data at it's clock frequency. By using a 2K fifo I am able to trigger by downloading all the data to the mega and then processing the trigger point in memory.

Once found, I upload the subsequent values Open Hardware Monitor Widget to open hardware oscilloscope 6.5 PC. Triggering is therefore rock solid. I have edge open hardware oscilloscope 6.5 level triggering on either voltage slope.

The DSO series oscilloscope is an Open Hardware pocket-size compatible 32bit digital storage oscilloscope, it based on ARM -M3, equipped with * color display, SD card, USB port, and recharging function. It’s compact, simple to operate; meets the basic demands of the school lab, electric furniture repairment, and electric engineering. Oscilloscope Kit, K Portable Dual Channel Digital Oscilloscope DIY Kit, with Accessories, in Color LCD Display Pocket Digital Oscilloscope with BNC Probes $ $ . Arduino High Speed Oscilloscope With PC Interface: Use your Arduino and PC as a fast Storage www.- Arduino can reliably gather voltage readings at a frequency of between and KiloHertz data readings can be taken in around www.- ered to .

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