We pick up the fascinating Nixie tubes through displays based on packages of laser-engraved plexiglass plates, illuminated by Neopixel LEDs. For those born in the era of solid-state displays, be they LED, 7-segment, dot-matrix, or even liquid crystal, it is difficult to imagine how text and numbers were displayed before their advent; Well, those who…
The oximeter is a tool that allows you to calculate the percentage of oxygen saturation in the blood based on the amount of light absorbed. It consists of a photodiode and two LEDs: a red LED and an infrared LED. To make the measurements, the fingertip is placed between the photodiode and the LEDs as…
Based on Neopixel and a special ultra-thin Arduino, it simulates the light produced by chimney flames As every year, the approach of the winter season stimulates our imagination and reminds us that electronics can do a lot, not only concretely (creating automatisms for indoor air conditioning) but also for pleasure and leisure; so here are…
https://www.youtube.com/watch?v=bGl29tdzQ-s&t=3s&ab_channel=maker.moekoe Hello makers, it’s maker moekoe! Flexball is based on a flexible PCB which is equipped with 100 WS2812 2020 addressable LEDs. It is controlled by an ESP8285-01f – the smallest ESP based module by Espressif. Additionally it has an ADXL345 accelerometer sensor on board. Original idea was to display text messages on that round…
I have just started using the Arduino and I thought I would try my hand at a little project of my own. Sezme is a game for the Arduino Uno that tests your memory. It is easy to build as I have only used LEDs, resistors, switches and a Piezo. In the game, the…
Hey, what’s up, Guys! Akarsh here from CETech. This project of mine is a bit on the simpler side but as fun as the other projects. In this project, we are going to interface an HC-SR04 Ultrasonic distance sensor module. This module works by generating ultrasonic sound waves that are out of the audible range of…
In this project we will see how to recreate the Snake game on a matrix of LEDs. After loading, the game will automatically start with the snake in the lower left corner. An apple will randomly spawn and you can start moving the snake with a joystick. We have an 8 x 12 matrix of…
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 show you how to build your home emergency light. The idea of the following circuit is that it must be compact and may be kept plugged into the mains socket for a permanent automatic operation. The battery can also be charged via a solar panel when the power grid is…
Bands on through-hole resistors conveniently indicate their value at a glance. On the other hand, you have to actually know the code to interpret this meaning. Alternatively, you could use the Ohmmeter 2.0. The Ohmmeter 2.0, based on Arduino Mega, has three modes. First, it enables you to enter resistor value with a keypad and…
Hello, We’ve just launched an interactive LED cube for the Raspberry Pi on Kickstarter. Would you be interested in covering it? We were fully funded within 12 hours, and have just exceeded £9k of pledges! https://www.kickstarter.com/projects/1202256831/lumicube-an-led-cube-kit-for-the-raspberry-pi We think it’s pretty stylish and wouldn’t look out of place sitting in your living room, or on your…
Having too many people in one room with poor ventilation can lead to unsafe conditions and an increased probability of sharing airborne viruses. With this instrument you can track the air quality and visualize historic trends. With this monitor, you can immediately see the local air quality on the 8 pixel LED strip and you…
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