In our previous article, we got a simple spinning effect with the provided sketch. It was easy. We have already mentioned that controlling NeoPixel with PWM can be done both with Arduino and Raspberry Pi. When can control the speed of the spin with a potentiometer, we can use any PWM signal to control the speed. The circuit diagram will be like this one: The GND of the NeoPixel ring … [Read more...]
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To build things such as DIY electronics projects using Arduino or ESP32 development boards, we will need a small (but dedicated) work area, a few tools, and some basic electronics components. Commonly, to set up such a project, the barrier is budget. In this article, we have carefully listed the components which are almost mandatory to have, can be used by any level of user and can be used in many … [Read more...]
Our reader Edward read our guide on How to Enable PEM Certificate-Based SSH Login and successfully hardened the SSH login system of his server. The next day he discovered that he can not log in via FileZilla as the root user. He can log in as the newly created user for SSH login. But, he can not find the way to run the sudo su command in FileZilla to become the root user. The website files on his … [Read more...]
These things are actually of architecture but in the context of cost reduction and DIY smart/IoT controlled lights, we need to know the basics. This article is intended to provide the information to clarify the basics so that you can choose the correct stuff. A good architect will expect an informed client specifically when you want to implement automation. In the case of masonry/RC … [Read more...]