Radio

Anyone approaching Meshtastic usually finds the same thing: tutorials full of tangled wires, tiny solder joints, and boards designed for people with solid electronics experience. That’s discouraging for anyone just getting started — and even more frustrating if your goal is to build a stable solar-powered node for the roof or the field. In A Coruña, a group of enthusiasts and makers began meeting at Bricolabs to build nodes using affordable designs like fakeTek and…

In radiofrequency, precisely adjusting an oscillator without tools like oscilloscopes or frequency counters can be a challenge. However, together with EB1A, we discovered that it’s possible to achieve an accurate calibration of the SI5351 module using a simple JavaScript calculation tool, ideal for DIY projects like WSPR. Project goal We want the oscillator to be as close as possible to the desired frequency (in this case, 14 MHz). We’ll use a calibrated receiver, such as…