[Todd Harrison] really has our number. Like him, we don’t want to spend money when we don’t have to, and hacking our own solutions is a lot more fun anyway. This time around he’s helping out a friend ...

Tsunami is a signal generator built on the Arduino platform. It is the brainchild of London-based developer Nick Johnson at Arachnid Labs and has secured funding on Kickstarter for its commercial ...

Real-time data acquisition from Arduino over serial and frequency analysis using the Fast Fourier Transform (FFT). Built as a practical signal processing toolkit for embedded sensor systems. Captures ...

Computer engineer Thiery Guennou based in France has created a new Arduino compatible precision frequency counter 5 or 120 MHz. The inspiration behind the Arduino board was to build an open, very ...

Making a microcontroller perform as a frequency counter is a relatively straightforward task involving the measurement of the time period during which a number of pulses are counted. The maximum ...

An important indicator for assessing the condition of the power grid is the frequency of the grid. In Europe, this frequency is set at 50Hz. If there is too much electricity in the grid, this ...

2 Arduino Uno shields provide an oscillator, an attenuator and a detector, all under Arduino Serial or CLI control. Control and readout can be automated using e.g. a shell script. This circuit is ...