4HP through hole version of the HAGIWO FM/additive/chord oscillator with mode switch and gain input. This module is basically my PCB version of the HAGIWO osc, heavily inspired by luis lutz version.

[Mark] from SpikenzieLabs was wrapping up a project using an Arduino the other day and found himself in need of a few more I/O pins. He could have added extra circuitry to the project, but he decided ...

The Global Positioning System (GPS) is a satellite network that provides accurate location and time information globally. It has applications in various fields, including navigation, surveying, timing ...