Category Archives: For Fun or Interest

Flowgorithm, a visual programming tool with source code generation

Flowgorithm is one of the visual programming tools available today. Positive: visual programming, focus is more on the modelling on how to solve the problem than on the syntax of programing language like java, c# or python. can generate code … Continue reading

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Morse Learner, tool for learning the morse code (receiving and sending)

Morse Learner is a portable and handy software for learning both the receiving and sending of morse code (chraracters made of DAHs and DITs). In the beginning it starts with small set of characters. And there are options to change … Continue reading

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OpenWrt, an alternative for improving network security at home with firewall and web proxy

Introduction OpenWrt is a Linux distribution that can be loaded into many wireless routers by replacing the original firmware with OpenWrt firmware. The picture below shows 2 such routers, together with Raspberry Pi on the right for comparison. My interest … Continue reading

Posted in Anvanced Tools, Cybersecurity, DIY, For Fun or Interest, Hobbies and Other Interests, Internet of Things and M2M, Network Monitoring, Recommended Free Tools, Security Training, Awareness and Reports, Tips, Tools, Troubleshooting | Comments Off

Second test, trying to use hand-cranked dc motor to charge USB devices (3 Watts working!)

Finally some good news and results. With a 12V DC motor, when used as a generator, it is possible to deliver close to 3.5 W for charging an android phone! This is a continuation to the previous blog. Working setup … Continue reading

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First test, trying to use hand-cranked dc motor to charge USB devices

Background I tried one hand power cell phone emergency charger with disappointing results. The device is very small, and it comes with a promizing USB connector. But when trying to charge either a USB power bank or mobile phone, it … 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