PoScope4 release v2.6

The latest release of PoScope4 offers many new functions and improvements 

Device displays

Snap to grid

The Snap to grid lets you automatically tile the displays in the working area in different configuration. First number is Row and second is Column. When Snap to grid checked all displays will be positioned in a grid of size Row by Cols.

Fig. 1: Snap to grid
Fig. 1: Snap to grid

If none of the above is appropriate for your use, you can always tile the displays by yourself as you wish. The location and size of the displays in the working area are fully customizable. Displays tab also shows device functions.

Fig. 2: Free floating displays

Whenever displays needs to be aligned to the grid just check Snap to grid checkbox in top left corner and all displays will get aligned.

Fig. 3: Displays snapped to grid

Even when Dynamic layout is used Snap to grid can position displays in a grid on any monitor.

Fig. 4: Dynamic layout with free floating displays

Cross cursor

All analog displays (Oscilloscope, FFT, X/Y, Recorder) has been upgraded with Cross cursor feature. Cross cursor is following your mouse moves and instantaneously displaying signal properties at hovering point.

Fig. 5: Cross cursor
Fig. 5: Cross cursor on analog displays

Logic analyzer doesn’t use cross cursor but more sophisticated analyze tool which shows digital signal related signal informations.

Fig. 6: Logic analyzer signal analysis on mouse hover
Fig. 6: Logic analyzer signal analysis on mouse hover

Storing display and device settings

All settings, including displays, devices are now stored into default Desktop file on PoScope4 exit. Additionaly we store all positions of GUI controls and recall them back on PoScope4 startup. Loading last saved settings enable users to work faster and more efficiently and not loosing your time repositioning GUI controls.

Freeze button

All displays are equipped with Freeze button which stops repaint of the display. It’s very useful for fast access to measured data without switching to Analyze mode.

Fig. 7: Logic analyzer freeze button
Fig. 7: Logic analyzer freeze button

PoScopeMega1 logic analyzer

Improved sampling frequency which goes now up to 4MHz (buffer mode)

Logic analyzer sampling frequency goes up to 4MHz
Fig. 8: Logic analyzer sampling frequency goes up to 4MHz

Logic analyzer

Every channel can be switched off/on simply by selecting it with mouse and keyboard combinations similar when selecting files in Explorer (in Windows OS). Click on Port A.6 and hold CTRL then click on Port A.7. Both channels are now selected. Now click on channel settings icon (any). Popup menu will show you options what can you do with channels. You can show all channels if any are hidden. You can also hide one of selected channels by clicking Hide this channel or you can hide all other unselected channels. In our case we click Hide unselected channels. After click Port A.6 and Port A.7 channels will be resized to take maximum of the window and all other channels will be hidden.

Fig. 9: Selecting and hidding channels in Logic analyzer display
Fig. 9: Selecting and hidding channels in Logic analyzer display

I2C sensors protocol decoder

We added support for I2C sensors in I2C protocol decoder. When setting up I2C protocol decoder you can select among different devices such as SHT20, SHT21, SHT25, STS21, HTUA21A, HTU20D, HTU21D, HTU3800, Si7006, Si7006, Si7020, Si7021 and Si7013.

Fig. 10: Decoding I2C sensors
Fig. 10: Decoding I2C sensors

Here is an example of decoding SHT21 sensor.

Fig. 11: Decoding SHT21 sensor
Fig. 11: Decoding SHT21 sensor

UART protocol decoder

We are introducing UART protocol decoder.

Fig. 12: UART protocol decoder
Fig. 12: UART protocol decoder

SPI protocol decoder

We are introducing SPI protocol decoder.

Fig. 13: SPI protocol decoder
Fig. 13: SPI protocol decoder

Support for new devices


PoScope Mega50 is low power USB oscilloscope, function generator and logic analyzer all-in-one.  It’s especially convenient for outdoor measurements in remote places where power supply is limited and portability is very important. Integrated high quality analog to digital converters are able to sample up to 48MHz and with maximum data resolution of 8-bits. Function generator is capable of generating different pattern test signals with frequency up to 12,5kHz and maximum amplitude of 1,8Vpp. Logic analyzer captures up to 16 digital inputs and gathers data for further analysis. Included free software PoScope4 extends its usability for many different applications. Mega50 is a really powerful small size device that will save your time, money and make your work with measurements much easier.

Technical specifications for PoScopeMega50

2 analog inputs

  • Sample rate: up to 48MHz (dual channel)
  • Input voltage: -30 / +30 V
  • ADC resolution: 8bits
  • Triggering: rising, falling, any
  • Triggering mode: auto, single shoot

2 digital ports

  • Sample rate: up to 48MHz (dual port)
  • Configuration: inputs (analyzer), outputs (generator)
  • Input voltage: 0..5V
  • No. of channels: 16 channels

1 analog output

  • Output waveforms: Sine, Square, Saw, Triangle
  • Max. signal frequency: 12,5kHz
  • Max. signal amplitude: 3,3V
Fig. 14: PoScopeMega50 control gui
Fig. 14: PoScopeMega50 control gui

*More additional informations about PoScopeMega50 will be published in a separate post


PoRef216U-50V is precise DC voltage generator  with different voltage ranges. It offers two channel and can generate DC voltage up to 50V per channel or up to approx. 100V in special single channel mode. It’s connected and powered via USB and don’t wory the outputs are galvanicaly isolated from input circuit. PoRef216U-50V inteligence is based around excellent PoKeys controller.

Fig. 15: PoRef216U-50V control GUI
Fig. 15: PoRef216U-50V control GUI

Many fixes and improvements

Here is a list of major fixes and improvements:

  1. Improved buffer depth for all new devices
  2. Improved / boosted device reading and decoding – multithreaded approach
  3. Device control GUI improvements when switching modes
  4. Signal generator fixes on PoScopeMega1+ and PoScopeMega50
  5. Displays fixes: compressed signal drawing fixes, data export fix, deadlock fix
  6. FFT fixes: Axes fix, number of points was wrong, data table position was wrong, random crash fix, etc
  7. X/Y fixes: When only one channel active display was not suspended,
  8. Recorder fixes: Fixed timing when recording, fixed loading of older files (from version 2.3 on), improved data loading
  9. Logic analyzer: Fixes on I2C decoder
  10. Calibration module

There have been done a lot of work on other improvements not mentioned here but improves stability and performance of PoScope4 a lot.

PoScope4 download link

Links to devices available in our store:

Link to PoScopeMega1 in our store

Link to PoScopeMega50 in our store

Visit PoScope website: www.poscope.com

If you need information about Polabs – PoKeys product, here are some links:

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