Category Archives: Audio and Video

Test, DIY tuning a piano key

I promised to “have a look” on a piano that did not sound “right” any longer; not for some time. A piano tuning professional had said that he does not know any piano with this name. After opening the piano, … Continue reading

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Reusing motorcycle intercom headset with android phone

This is about reusing an old wire based motorcycle intercom headset with android mobile. With intercom app in android, and with bluetooth, it is possible to use it for intercom between android phones, or even use it for phone calls. … Continue reading

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Test: ONVIF IP Camera

ONVIF is recent standard for security IP cameras. Due to the standard, it should be easier to integrate these cameras into a surveillance solution. From ONVIF site: The ONVIF specification defines a common protocol for the exchange of information between … Continue reading

Posted in Audio and Video, DIY, For Fun or Interest, Hobbies and Other Interests, Security Standardization and Practises, Security Training, Awareness and Reports, Tests, Tools | Comments Off

Free vector graphics and icons by freepik

Freepik has made several vector graphics and icons available. Worth to take a look. Their icons are available also at flaticon. In this blog, I try to make a short story by using freepik icons. Please note that, icons are … Continue reading

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Raspberry Pi camera and telescope, first tests

I got B+ model of the Raspberry Pi as christmas gift. Then I saw the size of the camera module, and I just had to go and buy one. I have been testing different webcam and digital camera setups with … Continue reading

Posted in Anvanced Tools, Audio and Video, For Fun or Interest, Gadgets, Hobbies and Other Interests, Innovation and new tech, Raspberry Pi, Robotics, Tests | Comments Off

David Laserscanner with webcam & line laser, Tools for capturing 3D objects

A tool called DAVID LASERSCANNER has a free alternative with limited options. The main limitation is that one can save captures with lower resolution only. The tool is shown below. And the setup consists of “corner with calibration picture”, line … Continue reading

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MeshLab, Tool for creating and manipulating 3D models

MeshLab is a free and open source alternative for creating 3D models (meshes) from capture data. Plus: lot of features and import and export formats Minus: crashes without informing the reason ie. need to save the work often Example 3D … Continue reading

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