[Jens]’ device consists of an Arduino, LCD display ... By carefully calibrating a TGS822 sensor, [Jens] was able to measure the acetone content of an exhaled breath along with temperature ...

We know that measuring the speed of light with an Arduino is possible. It’s just that the implementation is hard. [Udo] hit upon the idea of pulsing a laser pointer and measuring the time of the ...

In a nutshell, sound localization involves detecting sound from four microphones simultaneously, identifying the highest ...

One of the most popular Elektor projects in 2015 was Burkhard Kainka's medium-wave AM transmitter design. Let’s revisit the ...

A team of innovators has created a low-cost, portable CO2 meter using Arduino to make science education accessible and raise ...