Garmin plotter crashes nmea communication

[seandepagnier]

I am developing RF remotes. The typical remotes have only 4 buttons but you can press 2 or more of them at the same time. There is no screen so not making a menu with states.

Using 1 and 2 key presses there are 10 combinations or actions possible. If holding one while pressing others, depending also on release order many combinations are possible to support a lot of actions.