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Interfacing ATU-100 with another MCU #1KW


 

Hi all,

I would like to embbed an ATU-1000 inside my amplifier. For a smooth operation I would need to switch modes (auto/manual) and read status information (mode/power/swr) programatically.

The closest solution I've seen was this project. It uses an ESP8266 and emulates a LCD to parse the LCD information as text. I'm aware that I2C as prone to noise and can get corrupted easily, so I was thinking in other ways.

Reading the tandem match voltages (power/swr) is quite easy. pushing buttons (bypass and auto/manual) is also possible but I cant find a way to determine if the tuner is in auto or manual state.

Since the ATU1000 has separate boards for RF and logic control, one option could be making a control board from scratch and writing all the code again, but I trying to leave this as last ressort due to the amount of work required to port the code to another platform.

Anyone did something like this?

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