The Digital LO and BFO remains front and center of the new 20M Hybrid Rig. The mere fact that the circular dials move in unison and with a 3.2-inch display adds a whole new dimension to an exciting quasi-retro rig.
JF3HZB Analog Type Dial
While the above photo shows a 40M display, the sketch must be modified in several ways for use with the 20M Hybrid Wireless Set.
First and foremost is that an Analog VFO or BFO is not in the mix. I want a homebrew retro rig that will not be scorned because the VFO drifts or that is not on frequency. We have the technology, so let's use it.
The JF3HZB sketch is quite complex and way beyond that needed for "Hello World" or the Miyagi LED On LED Off. The sketch as presented provides for only one selection for the sideband. Thus, the code must identify a switch (high or low) and that switch triggers logic to use one of two BFO frequencies.
The ESP32 coding while it uses the Arduino IDE to load the code is slightly different than what is used for a Nano or Mega 2560 or even the Uno R3. Thus, the development work.
There could be other info that would want to be displayed, and the only area available is located at very bottom mid-screen. It took some hand hockeying just to get my call sign and LSB displayed on the 40M Hybrid Wireless and so it is a bit more complex.
In summary, development work is needed to change the range of the LO, to add sideband select and to reserve an area on the display for other info. I envision this is more than a one and done project.
The sideband select is not as critical for the 20M Hybrid Wireless Set as the norm is USB which works FB for FT-8. But it is a problem on 40M where the norm is LSB. So, solving sideband select opens a big opportunity for FT-8 on the 40M Hybrid Wireless.
Them that know can make things go.
73's
Pete N6QW