ATU-100 Kit

Before I started my build I did quite few searches online for information about the proper way of putting this kit together. Anyways, I had a month of waiting ahead of me for this to arrive!
I found many interesting ways to finish the kit, and even how to upgrade the software on the microcontroller to its latest version. However, the part I thought it would be good to learn with this kit, was the building the toroidal coils and measure them to ensure the have the correct inductance. Not needed, but I saw it in one of the videos.

In the photo is a little adapter board I made to connect the coil to the NanoVNA for measurement of inductance.

Is this very short video, an example measuring a coil with NanoVNA.

A close up to the screen inductance measurement.

All coils and first three relays installed

Everything installed on the board, rest of the relays and the thru-hole components

Smoke test with a 9V battery. It worked at the first attempt.

Solder pads for the two "optional" buttons for "Bypass" and "Auto"

This is on the bottom side of the board

Finishing the project aluminum box (an extra CAD$ 16 in Amazon.)

I've used regular SO239 chassis type connectors, instead of the SMA PCB type connectors that came with the kit.

Mounting the board on the box and soldering the connectors and buttons

Back of the unit

Front of the unit with OLED screen.

Bypass and Auto buttons are optional.

Tune button is mandatory.

Smoke test with my oldest radio. (Just in case you know.)

The tuner remembers only the last used setting (even after a power cycle), it doesn't remembers previous adjustments on each frequency tuned, like most automatic tuners do (internal or external.)