Can someone please explain what the main home screen on my Iris transmitter tell me?
Apart from the two squares with the dots in the middle, I am not sure what the rest of it tell me.

What are the bars between the two squares for? I've seen on 3DR videos there are three bars, however, I only get two bars showing. The first one is down to zero of the bottom.

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  • Look at the er9x firmware documentation ER9X@GoogleCode.  The different screens show things like control stick position, switch on/off, stick values (bars), stick raw values (post-mix/curve, see er9x what a mix/curves are).

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