I already have shown how I have made an Arduino controller for my old LEGO robotic kit; and also, how to recognize colors. Now I will form a cool project around these achievements, and build a line following robot. This post focus on two key parts of the build: what is the recommended hardware design… Read More »
It seams, that it is very popular now to build portable bluetooth boomboxes. I already have made an active speaker set, but it does not provide bluetooth connection, and while it was designed to portable, it does not contains battery. So now I wanted to have a more portable one with bluetooth support. The TDA7492P… Read More »
[sg_popup id=”15″ event=”onload”][/sg_popup]Design I wanted to build a bunk-bed on my own, as I did not have found one that matched my need. (Actually I just wanted to have a simple, but robust structure.) At the time of the design, I was not completely sure at what height the upper bed should be, so I’ve… Read More »
Goal I have seen some egg painting machines out there, but I found them too complicated to be a DIY project. These are some kind of CNC laves. In my design the pen (aka. tool) is in your hand, so the pen movement not controlled by the machine. The machine only performs the rotation task.… Read More »
Preface Lately I play some chess again, and I was realized, that it will become very boring, if we do not limit the time of the game. So a chess clock is required, but instead of buying one, it seams to be a great DIY project, and we will have a hackable clock around the… Read More »
Wiring This is the pin mapping we have for the onboard components. Arduino pins This is the same, but from the other direction RF port pins 10DOF port pins Extension port pins This is the extension port pin-out. Top view. Dual color sensor extension panel Logical: Physical (top view): BPX 43 wiring
Lego robot controller – Color recognizer Summary In this article we will talk about how to detect the color of objects with Arduino. Preface I have built lately an Arduino based driver module for my old Lego robotics kit. At that point I have left some space on the board free, and this was intended… Read More »
This document is about a speaker case I was built around a TDA2030A amplifier circuit and a 130mm car speaker set. Preface The story began some years ago, when I’ve bought a TDA2030A DIY Kit as a Fater-child project to build a power amplifier together. The amplifier was build, but it turned out that we… Read More »
See video explanation of this article here: Preface Rotary encoders are pretty cool and easy way to interact with our software. However it is not straight forward to achieve trusty operation with it. The problem in the physical characteristics of these devices, that I will explain in this essay. The second most problematic thing is… Read More »
If you like my project please consider donating me. This way you encourage me to produce more and more quality products/contents. I do my projects as a hobby and I do not get payed for these works. What you benefit is free content and free products. Now it’s your time support the community, this time… Read More »