HF VHF RF Power/SWR meter with Oled Display

    Presenting here is a simple Arduino based homebrewed HF/VHF RF power & SWR meter. This compact and light weight equipment which is powered by recycled Nokia BL-5C batteries and entire unit is mounted inside a PVC junction box. A DC power socket is provided to recharge the battery using external power supply as we as an option to power the device using external power supply.

FLC METER USING 16F877A (DE_METAL_AMIGO)

 

Inductors and capacitors are general purpose components in AC circuits. The estimation of exact or approximate values of inductance can be found in much theoretical way with the relation that they make with their physical dimensions. But who knows what exactly the show in practice. Even the slight change in the pitch of turns in case of inductance can change the resultant value. That was the intention that leads me to the build one.