In this blog post I present an overview of the "Irwell HF Transceivers" vfo microcontroller software, it is intended as a guide to key features for those who have requested the software or are building the transceiver.
The software and MCU hardware is responsible for generating the VFO signal, oscillator frequencies and to provide control of the various transceiver stages.
The main VFO and controller hardware is based around an affordable STM32 Bluepill microcontroller board.
