sinus and square frequency signal generator

thingiverse

This is a test signal generator designed to produce sinusoidal and square waveforms across an incredibly broad frequency range, stretching all the way from 1Hz up to a staggering 125MHz. The project also calls for creating a housing with built-in support, adding an extra layer of complexity to the overall design. It seems the designers had fun building this project! You can get a sense of their hardware by glancing at the photos that feature an open-source four-channel oscilloscope known as DSO203 or DSO QUAD. Instructions for Assembly: To complete this impressive signal generator, you'll need the following components: an Arduino Nano board, an AD9850 circuit (which can be purchased in bulk from Chinese manufacturers), twelve momentary push buttons, an on/off switch, two BNC female connectors for panel mounting, a 9V battery connector, and a prototype PCB board measuring 10x70mm. A handful of cables will also come in handy. Take note that the diagram outlines the necessary wiring configuration, but remember to secure ground connections to your BNC connectors. Sample Arduino Code (comments included): You can obtain the full code by downloading it directly from this link.