Martin Ossmann (96)

1-03-2026 | This article presents a flexible signal generator based on the Raspberry Pi RP2040 that can be controlled from a PC via an RS-232 interface....

23-02-2026 | This article describes a versatile Raspberry Pi RP2040–based signal generator that can be operated from a PC through an RS-232 interface. Re...

1-01-2026 | According to Shannon’s sampling theorem, it is sufficient to sample a signal of frequency f at a rate of 2f in order to capture all of its i...

1-10-2025 | Shannon’s sampling theorem states that a signal of frequency f can be fully captured by sampling at 2f. Modern PC sound cards support rates...

1-09-2025 | The RP2350 microcontroller, introduced with the Raspberry Pi Pico 2 as the successor to the Pico 1’s RP2040, has been available for some tim...

1-03-2025 | The Raspberry Pi Pico is powered by the RP2040 processor, equipped with two CPU cores. This characteristic makes it an ideal platform for de...

1-01-2025 | The MCP4725 12-bit digital-to-analog converter from Microchip Technology costs only around $1. It has an I2C interface and can be operated w...

1-09-2024 | Unlike a dipole, a magnetic antenna uses primarily the magnetic (rather than the electric) component of the electromagnetic field to receive...

1-05-2024 | Tucked away inside your PC is a piece of hardware that generally just sits there swapping audio information between the analog and digital d...

1-09-2023 | This article shows how to build a software-based spectrum analyzer with a simple Raspberry Pi Pico. A basic version with a 12-bit resolution...