S meter using lm358 as sensor is very simple. One more sensor version is using another Arduino. For more info refer hamsky web.
On Fri, Nov 9, 2018, 12:23 AM David Posthuma <
davep@...> wrote:
I have been using KD8CEC's 1.095 version of the Firmware and have been very happy with it. I am using a 3.7-inch?Nextion?display. My question is two-fold:
1) What extra benefits would I get for upgrading to 1.097??
2) I need to add an S-Meter, what sensor and setups are best for either version?
