The “light painting” consists in photographing moving light sources and thus obtaining very particular and creative images; in this project we see how to build a bright skateboard for this purpose. We used an Arduino Nano as a microcontroller, the case was 3d printed. We connected a button and a switch so that we could…
In this project we see how to make a lamp that can change its colour according to the environment, using the Arduino Nano microcontroller. We must therefore create an electronic circuit that takes a color as input and outputs the relative light. The most important material in this project is the TCS34725 RGB sensor (another…
Virtual reality technology has come a long way over the past decade, but there are still some things that could be done to make it even more interactive and engaging. What if virtual reality users could actually feel the ground they walk on rather than just seeing it? A team of students from KAIST in…
In this project we will see how to make a thermometer to measure the temperature in the room with a measuring range from 10 degrees to 35 degrees Celsius and an accuracy of 0.5 degrees. The temperature is displayed on the WS2812 LED bar containing 50 diodes. Characteristic of this thermometer is that in addition…
In this project we will see how to make a smart pot that can show the emotion of a plant. It uses a soil moisture sensor to monitor the state of the soil and then displays an emoticon expression for that moisture level. To carry out this project we first need a plant pot. In…
Peter Balch, reading an IEEE report on speech recognition from the late 1970s, wondered if, with a normal Arduino Nano, it was possible to obtain the results of a computer of the time. Comparing the two tools a Nano has 2 KB of RAM, 32 KB of program ROM and runs at about 10 MIPS…
Anyone can learn robotics, but what if there was a practical and inexpensive approach? This is where “Boca” comes in. Boca is a 3D printed open source platform for manufacturers and researchers interested in exploring control theory and Machine Learning. Boca has eight degrees of freedom, thanks to the 8 servo motors, with some great…
In this project we see how to build a logic probe, that is a complete, simple and effective instrument that allows you to measure digital logic levels 0 and 1, both in TTL and CMOS technology. The maximum accepted level is 10 volts but CMOS can reach up to 18 volts (however best avoided). To…
Lately we see many commercial products that allow you to levitate light objects using a magnetic field. There are already assembled kits, but today we will see how to build a more simplified one at home. The project uses an Arduino Nano that controls an electromagnet through a power transistor based on the signal received…
In this project we are looking for a solution to control the humidity level in the bathroom. In particular we will try to control an already present fan that is operated manually. You can of course buy a fan with an integrated controller, but this is often expensive and with limited manual settings, here we’ll…
After losing the chicken due to wildlife intruders, Elbie decides to create a Smart chicken coop with several functions: Opening and closing the door at sunrise and sunset according to local geographic coordinates; Intrusion detectors with flashing LEDs in two positions; LEDs visible from the outside to show the status of the door; Two buttons…
Due to the pandemic, many people have been forced to stay indoors much more often, which means missing out on the usual social events, including sports and tournaments. Even playing a simple game of chess hasn’t been feasible anymore, until now. Lewis of DIY Machines designed and built a smart chess board that allows you…
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