Hi Roger,
I think all of the additional features and suggestions from others are perfectly valid.
From an operational side of things, the ATU-10 features such as latching relays and updating via USB may be worth considering. Power feed would be useful for antenna feed point installations.
The ATU-100 provides a low-cost solution and is ideal for experimentation.
I used a modified version of the WA1RCT code with a bespoke SPI interface connected to a D1 Mini (ESP8266 WIFI module) to provide an alternative method for display and control.
/g/ATU100/message/2254One feature that I added for debug, but is quite useful is the ability to read and write the EEPROM values in the PIC without using a programmer.
As pointed out by others, the use of WIFI may not be a good interface due to the potential of corruption from localised RF.
73, Dave
